Tag Archives: Raspberry Pi

How To Install Essential Upgrades To Your ROBO 3D Printer

Make your 3D printer into a wireless print server by adding a Raspberry Pi and capture timelapse videos with an on-board webcam. What do you want to see me print next?

How To Install OctoPi http://airbornesurfer.com/2017/06/setup-octopi-raspberry-pi-octoprint/

AFFILIATE LINKS:
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Running Scared http://amzn.to/2rq8Nhf
Outlet Saver http://amzn.to/2rqigVK
Right-Angle USB Cable http://amzn.to/2sDdIQl
USB Power Adapter http://amzn.to/2szR7TM
Webcam http://amzn.to/2sDaYCo

THINGIVERSE LINKS:
Cable Loop/Holder https://www.thingiverse.com/thing:934927
Raspberry Pi Mount https://www.thingiverse.com/thing:1205961
Camera Mount https://www.thingiverse.com/thing:2389663
Spool Holder https://www.thingiverse.com/thing:255229

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Tech teardowns, repairs, and reviews; sketches; how-to; games; and lots of other interesting geekery. At least one new video per month! Thanks for watching, and be sure to like, share, and subscribe!

TRASNCRIPT:

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hey folks Atari here I’ve been playing

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around with this Robo 3d printer for a

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while now

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and I think I’ve got the hang of it

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finally the thing about 3d printing is

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it’s very much a hacker minded hobby

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there’s a lot of trial and error

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involved in the process and most

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consumer grade printers do lack a lot of

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the out-of-the-box features got some of

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the higher-end printers include which

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leads people like me to go ahead and

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build their own upgrades what I’ve done

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here is I’ve installed a Raspberry Pi

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with the octoprint software to make a

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self-contained Wi-Fi printer and then I

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installed a webcam to capture time-lapse

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videos of the print process as well as

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some LED lighting for better video

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capturing and then I’ve you know kind of

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rejiggered the cabling and the filament

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feeds so that they’re going to move a

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little bit better and they don’t be

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caught up in may in the works inside it

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just makes for a whole lot better

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experience so this video is going to

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walk you through the process that I use

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to install these physical upgrades but I

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will have a link in the doobly-doo and

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probably up here in the corner a link to

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a full how-to article about about

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installing and setting up octoprint on

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the Raspberry Pi or octopi as its called

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I will put a link to that I’ll have a

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full write-up on airborne surfer comm so

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you can follow that guide there but

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again this is going to walk through the

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physical installation and with that with

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the write-up on the software that should

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get you through a pretty much down the

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gist of it the first thing I’m going to

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fix is the zip tie loop for the cable

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loom having a zip tie here has been

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holding the Loom a little too rigidly

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and has led to a few failed prints I’ve

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already cut the zip ties since removing

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the hood and now I need to replace the

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mounting point for the zip tire I found

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a suitable two piece cable loop on

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Thingiverse that holds the Loom in

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face while being loose enough to allow

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some play in the tension remove the two

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screws holding the loop mount in place

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then replace it with the base of the

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two-piece print hang on to the second

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piece for later next thing to do is

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install some lighting I picked up the

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self-adhesive USB powered LED strip from

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Amazon and ran it along the interior of

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the hood be sure to start with the USB

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plug on the slide with the cable well

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this is the same side that the loop

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mount is installed now before we put the

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hood back on go ahead and unplug the USB

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cable and the power cable from the

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printer place the hood back onto the

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base of the printer with the cable loop

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on the same side as the well make sure

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all the wiring is tucked inside the hood

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before pressing down to properly align

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the screw holes then screw the hood

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securely in place now gently lift the

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printer and set it on its side make sure

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to hold on to the print cartridge and

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abed as they’re likely to slide around

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to install the Raspberry Pi we’re going

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to need to siphon some electricity from

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the printers power supply specifically

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from the AC input coming from the switch

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on the back of the unit the power supply

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on a robo 3d printer is a tough zombie

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to remove

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there aren’t any screws or anything it’s

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just held in the friction very tightly

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as you can see taking quite a bit of

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effort to remove I found that shifting

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it down at an angle back and forth will

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garner the quickest results but your

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mileage may vary so here are the

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terminals these four go into the Arduino

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board that controls the printer and

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these three are for the AC what dish

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blue brown green and yellow OnLive just

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get get somebody killed

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you see standards exist for a reason

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well they exist for many reasons but one

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of them is safety international standard

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wiring colors are such so that one does

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not accidentally connect the wrong

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conduct to do the wrong terminal or

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worse touch the wrong live conductor

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this is wrong this is it’s good right

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I mean bed at least the goddamn

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terminals are clearly marked anyway

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we’re going to need to tap into these

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leads to direct power to a standard 110

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volt outlet so that we can use an

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off-the-shelf power converter to power

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the Raspberry Pi

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we’ll start by loosening the terminal

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screws and removing the leads I picked

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up this outlet saver at micro Center for

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a couple of dollars essentially it’s a

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10 inch long grounded extension cord

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take a pair of scissors and cut off the

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plug-in then strip away the outer casing

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leaving just the outlet end and the

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exposed inner wiring at least these

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wires are the proper colors so now we

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just need to strip the end of the

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insulation off of each of the wires so

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we can hook them up to the terminal now

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remember kids ground is green like grass

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on the ground white is neutral because

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it’s the neutral color and black is live

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because black lives matter anyway

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so we reinsert the leads from the switch

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into the proper terminal then insert the

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new leads from the extension cord into

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the appropriate terminals as well and

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tighten the retaining screw then simply

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reposition the power supply back inside

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its retainer with a good shove now we’re

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going to need to run a USB cable to

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connect the Arduino to the Raspberry Pi

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and because the Arduino is mounted so

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close to the edge of the base we’re

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going to use this right angle USB cable

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to make the connection now even with the

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low profile of the right angle cable

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though we’re going to need to

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move the Arduino to plug in the cable so

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just remove these three mounting screws

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from the Arduino and carefully plug in

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the USB cable you can use the existing

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wires to hold the new USB cable in place

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just be careful not to pull any of the

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wires from the Arduino screw the Arduino

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back into place and you’re done with

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step 2

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I found the simple mouth for a Raspberry

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Pi on Thingiverse but I also printed if

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you get the hole size right you can use

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screws to mount the pie in place but I’m

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just going to use glue as it’s a little

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easier than drilling out the hole apply

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the glue to the mount and press the

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Raspberry Pi board into place some glue

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should come through the holes in the pie

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and mushroom over to provide a pretty

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good hole clamp some parts together

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until the glue sets apply glue along the

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perimeter of the mouth and press it into

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place on the bottom of the printer make

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sure to hold it tightly against the base

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of the printer until they do the sex

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finally plug the printer into one of the

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USB ports on the pie plug one end of a

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USB to micro USB cable into the power

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port on the Raspberry Pi and the other

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end into a wall wart power converter I

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think this one up at Tashi station for

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about 5 imperial credits just make sure

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it’s rated for at least 5 volts and 1

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ampere plug your power converter into

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your hacked up power outlet from earlier

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and now your pie is powered on by the

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main switch on the printer again you can

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use the existing wiring to hold your new

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wiring in place I picked up a short USB

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extension cable to connect the lighting

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to the PI as well so I just need to

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connect that the last USB connection is

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made for the webcam which will record

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our time-lapse videos for this i’ll

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thread the USB cable from the front of

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the printer through the cable well to

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the underside of the printer and connect

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it to the Raspberry Pi

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before setting the printer up light go

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ahead and insert the cable loom in place

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inside the loop installed earlier and

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enclose it with the locking piece then

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carefully write the printer this is a

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widget that I designed myself and

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Tinkercad and I’ll put a link to it in

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the doobly-do what it does is it clamps

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onto the edge of the print bed and

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allows you to mount a clamp style webcam

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level with the print bed so you can

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capture time-lapse video that stabilize

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to the y-axis stabilizing one axis is

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nice because otherwise motion gets

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really messy and you can’t really see

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much detail in your printing lastly

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we’re going to turn the printer around

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to the back so I can install the new

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spool holder that I printed this is a

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replacement for the stock holder that

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hangs off the side of the hood this one

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keeps the footprint of the printer a

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little smaller and keeps the filament

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closer to the center axis of the printer

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which helps keep the feed steady

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preventing jams and tangles and it just

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grips onto the side of the hood and

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slides down to lock in place

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now if you’ll install these upgrades as

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soon as possible after setting up your

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logo through the printer you’ll find

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that you’re going to get a much better

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and much more consistent quality in your

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prints and you’ll have a lot fewer

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headaches along the way so anyway thanks

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for watching and if you like this video

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give it a thumbs up and click that

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little subscribe button and be sure to

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share it with your friends and in the

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meantime uh what would you like to see

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me 3d print leave an answer in the

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comments below until next time Tallyho

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y’all

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[Music]

 

How To Install OctoPi (Raspberry Pi OctoPrint)

Having a 3D printer at your disposal is pretty amazing, but it can be a pain when you have to keep the printer tethered to your working computer for hours (or even days) while it runs! I was looking for a simple solution to drive my printer while I used my laptop for other purposes (like going to work during the week) when I came across OctoPrint, an open-source 3D printer web interface for controlling and monitoring the printer from a remote computer. The software essentially creates a running web server for the printer and takes the place of printing suites like MatterControl or Repetier, so it does require running on a machine connected to the printer via USB. If you have an old PC gathering dust, you can easily set it up and have a permanent print station. I, however, don’t have the luxury of a lot of space, so I wanted a more portable option that I could pull out when I needed to use it and easily put away. For this, I chose the Raspberry Pi as it is small enough to easily fit into the printer’s form factor, doesn’t require much electricity to run, and has built-in WiFi compatibility. The OctoPrint software even comes as a complete Linux distro optimized for Raspberry Pi called OctoPi.

Out of the box, OctoPi incorporates the LAMP stack for web hosting, a complete OctoPrint installation (including dependencies) for controlling the 3D printer, the mjpg-streamer package for streaming timelapse videos of the print process, and CuraEngine for slicing. This last item, however, is really moot because of the anemic computing power of the Raspberry Pi. I prefer to slice models on my working computer then transfer over the network to OctoPi for printing.

OctoPi is a pretty simple setup with a lot of really good documentation both at the OctoPrint.org site and their GitHub page. To start, make sure you have Etcher installed and simply download the latest stable version from http://octopi.octoprint.org/download (Be sure to grab the md5 file to verify the download as well!). Unzip the downloaded image and burn it to your SD card using Etcher like you would any other RPi image.

OctoPi network setup
If you don’t know how to manage these settings, you might think twice before diving into 3D Printing. Just a thought.

Open the newly burnt SD card as a removable drive in your computer’s file explorer. In the root folder of the SD card, use a text editor to open octopi-network.txt and edit the file as necessary to match your network configuration. Don’t forget to delete the # at the beginning of the appropriate lines or OctoPi will not connect to the network!

Eject the SD card from your computer, pop it into the Raspberry Pi, run a USB cable from the Pi to the printer, and turn on the Pi by plugging it into a power supply. Give the Pi a minute to boot up, and SSH into it from your main computer. The Pi will be located on the network as octopi.local (or an IP address assigned by the router). As usual, the default username is pi and the default password is raspberry.

Change the password using the passwd command, then close your SSH session.

Open a browser on your main computer and point it to octopi.local (or the assigned IP address). The OctoPrint interface will open with the “First-Run Wizard” and prompt you to set up access controls such as username and password. This is specific to OctoPrint and independent of the username and password used to access the Pi via SSH. If you don’t plan on having your printer exposed to the Internet or having anyone else connecting to your network, you may disable access control. I keep it active just in case, so disable at your own risk!

Reboot OctoPi through the menu at the top right of the screen, and you will be all set to print! If you need more help, check out the README section of the GitHub page or drop a comment below!

Project Spoofy final build, boot, and demo

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Prototype power supply for Raspberry Pi digital photo frame

After a hasty trip to Fry’s in Anaheim last night, I managed to cobble together a prototype power supply that powers both the monitor and the Raspberry Pi from a single source! Now I just need to clean it up and stuff it all inside a nice frame!

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Project Spoofy (Raspberry Pi digital photo frame) guts in progress

I’ve completely disassembled a flat-screen monitor I picked up at the thrift shop and now I have to figure out the best way to power both the Raspberry Pi and the monitor off the same power supply.

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How To Set Up Dynamic DNS Using No-IP on Raspberry Pi

Now that we have a working ownCloud installation on our Raspberry Pi, we need a way to be able to remotely access the device from across the internet. Knowing the IP address and forwarding the appropriate ports on the router is only part of the story: most residential ISPs will periodically change the external IP address of their customers for logistical reasons that we won’t get into here (it’s a matter of traditional infrastructure limitations and convenience for the ISP). We’re going to need a way to automatically keep track of the IP address of the device as it potentially changes; as a fortuitous consequence, we’re going to be able to get an easy-to-remember URL in exchange. To do all this, we’re going to set up dynamic DNS using No-IP on Raspberry Pi.

No-IP is a service that allows you to assign a static domain name to a dynamic IP address. Their basic level of service is free, but only affords a limited selection of domains and has to be renewed every 30 days. There are paid offerings available with more features, but for our purposes, we’ll stick with the free product. To get started, sign up for an account at www.noip.com. Once logged into your account, click the “Add a Host” button and fill in the appropriate information: choose a domain, host type [which should be DNS Host (A)], and the external IP address for the network to which the Raspberry Pi is connected. Click the “Add Host” button at the bottom, and then it’s time to set up the client on the RPi.

Using No-IP on Raspberry PI

On the Raspberry Pi, open a terminal session. The first thing we’ll need is a directory to install the Dynamic Update Client. Type mkdir /home/pi/noip and press enter, then navigate to the directory by typing cd /home/pi/noip.

Download the client by typing wget http://www.no-ip.com/client/linux/noip-duc-linux.tar.gz then unzar the archive file by invoking tar vzxf noip-duc-linux.tar.gz and enter the newly written directory with cd noip-2.1.9-1

Now we can install the client using sudo make and then sudo make install. During the installation process, you will be asked for your NoIP credentials as well as your preferred refresh interval (in minutes). Enter them when prompted, then wait for the setup to complete.

Once the installation is complete, run the client by invoking sudo /usr/local/bin/noip2. You can always check on the status of the client by invoking sudo noip2 -S (for status!)

Port Forwarding

Now, all you have to do is set up port forwarding on your router to point port 80 to the Raspberry Pi. Every router’s instructions are going to be slightly different, so check your particular model’s documentation. My Linksys router hides the port forwarding options under the security section and the “Apps and gaming” section. If you make sure that HTTP (port 80) points to the internal IP address for the  RPi, you should be able to navigate to the domain you previously set up on No-IP and reach the default Apache information page. If you get this page, everything is working!

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How To Install ownCloud on Raspberry Pi

OwnCloud is a clever self-hosted alternative to Dropbox and its ilk that provides the same services without the expense of subscriptions or the likelihood that government or marketer’s eyes are prying into your documents. For most consumers, this might be considered more trouble than it’s worth, but rolling your own cloud server under your control is essential to keeping the free and open web–well, free and open. The Raspberry Pi’s $35 price tag makes it especially handsome for a low-cost cloud server using free and open source software. In addition to being an excellent option for cloud storage–especially for those of us with terabytes of material to store–ownCloud is going to provide us with easy online access to photo storage for Project Spoofy. We’ll just point the slideshow application to the ownCloud folders for simplicity later! For now, let’s get started with how to install ownCloud on Raspberry Pi.

How to install ownCloud on Raspberry Pi

First, we need to add the ownCloud repository to the Pi’s sources list. At the command prompt, type sudo nano /etc/apt/sources.list.d/owncloud.list and hit return. This will create a new text file in the Nano text editor. On the first line of the text file, type deb http://download.opensuse.org/repositories/isv:ownCloud:community/Debian_6.0/ /

Type CTRL+x to exit Nano, then Y and return to save.

Now we need to add the repository key so we can access the repository. Download the key by typing wget http://download.opensuse.org/repositories/isv:ownCloud:community/Debian_6.0/Release.key at the command prompt. Once the key is downloaded, add it to the repository by invoking sudo apt-key add - < Release.key

After adding the key, update the repositories by typing sudo apt-get update and return.

Now, we can install ownCloud by typing sudo apt-get install owncloud and return. Press Y for any questions the system asks you, and sit back while ownCloud and MySQL are installed. At some point, MySQL will prompt for a  root password. Choose something interesting and note it for later.

Setting Up ownCloud’s Directory Permissions

Once everything is finished installing, it’s time to set up ownCloud’s directory permissions. First thing, we need to make sure that HTTP has ownership of the ownCloud directory. To do this, make www-data the owner of owncloud by invoking the following command:

chown -R www-data:www-data /var/www/owncloud

Now that HTTP has ownership, we need to adjust the permissions for maximum security. ownCloud has actually provided a script to set all the permissions automatically. Copy the following, paste into a shell script (*.sh file, such as “ocperms.sh” for example) using Nano, and save to a convenient location on the Pi.

#!/bin/bash
ocpath='/var/www/owncloud'
htuser='www-data'
htgroup='www-data'
rootuser='root'
printf "Creating possible missing Directories\n"
mkdir -p $ocpath/data
mkdir -p $ocpath/assets
printf "chmod Files and Directories\n"
find ${ocpath}/ -type f -print0 | xargs -0 chmod 0640
find ${ocpath}/ -type d -print0 | xargs -0 chmod 0750
printf "chown Directories\n"
chown -R ${rootuser}:${htgroup} ${ocpath}/
chown -R ${htuser}:${htgroup} ${ocpath}/apps/
chown -R ${htuser}:${htgroup} ${ocpath}/config/
chown -R ${htuser}:${htgroup} ${ocpath}/data/
chown -R ${htuser}:${htgroup} ${ocpath}/themes/
chown -R ${htuser}:${htgroup} ${ocpath}/assets/
chmod +x ${ocpath}/occ
printf "chmod/chown .htaccess\n"
if [ -f ${ocpath}/.htaccess ]
 then
  chmod 0644 ${ocpath}/.htaccess
  chown ${rootuser}:${htgroup} ${ocpath}/.htaccess
fi
if [ -f ${ocpath}/data/.htaccess ]
 then
  chmod 0644 ${ocpath}/data/.htaccess
  chown ${rootuser}:${htgroup} ${ocpath}/data/.htaccess
fi

Now, make the script executable by typing chmod u+x /ocperms.sh and enter, then execute it by typing ocperms.sh

Set up MySQL

One last step before we run the installation wizard: we must create a MySQL database. When we installed ownCloud, MySQL was installed by default, so we have that going already. Now, just log into the MariaDB client as root by typing mysql -u root -p and return at the command prompt. MySQL will ask for the root password you set earlier then display a new command prompt.

You’ll need to choose a database name, user, and password for ownCloud. In this example, I’ll be using some generics (dbname, dbuser, dbpw), but feel free to make it your own.

Type the following commands at the MySQL prompt (case-sensitive):

CREATE DATABASE dbname;

GRANT ALL ON dbname.* TO dbuser@localhost IDENTIFIED BY 'dbpw';
Then, exit the client by typing quit and return.

Lastly, reboot the Raspberry Pi to make sure all the changes are updated.

Run the ownCloud Installation Wizard

We’re finally ready to start running ownCloud! From the Raspberry Pi command prompt, type startx and return to enter the GUI so we can launch a web browser. Using the browser, navigate to http://localhost/owncloud. If everything was set up correctly, you should see the following screen:

Install Owncloud on Raspberry Pi

Fill in the blanks with whatever you would like your ownCloud administrator account credentials to be, click the “Storage & database” drop-down and verify that the storage directory is correct and that MySQL is selected. Also enter the MySQL account credentials that you set up in the last section. Click the “Finish setup” button and you should be dropped into ownCloud’s web interface.

It is possible (if you’re accessing ownCloud from a different computer using the Raspberry Pi’s IP address) that you may run across a “Trusted Domains” error. If that happens, follow the instructions on the screen. If you are unable to automatically add your domain to the whitelist, you will need to do so manually by editing the config.php file in the owncloud directory.

Install Owncloud on Raspberry Pi

Open a terminal window and type sudo nano /var/www/owncloud/config/config.php to edit the configuration file. Look for the section that looks like the following:

'trusted_domains' =>
array (
0 => 'localhost',
),

and change it to look like

'trusted_domains' =>
array (
0 => 'localhost', 'IP OR URL ADDRESS HERE',
),

where you simply add the IP or URL addresses that you wish to use to access ownCloud. This will come in handy later when we set up remote access. Save the config.php file and reload ownCloud. You should be now able to access the application without a problem!

For more information, please see the ownCloud documentation as well as detailed instructions here and here. I’ve done my best to parse all the pertinent instructions from these sources into something simpler for even the novice to be able to follow.

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