Tag Archives: 3D print

3D Printed Cord Wrap Tool for Microsoft Surface Pro 4

If you owned any good laptops, you might have a charger that had a curved shape, and/or a strap to help you wrap the cord. Well… The Microsoft Surface Pro 4 is an amazing computer but it’s charger doesn’t even have a strap. So I’ve decided to solve this problem with 3D printing.

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The filament I used is actually black 3mm polyurethane filament, which is both strong and flexible. Printed using my Ultimaker2, upgraded with a Flex3Drive, at 250 degrees C, layer height of 0.2mm, and 200% extrusion.

Funny that the strap would’ve been too long to be printed straight, that’s why I made it squiggly.

The model file is shared as a public model on Onshape here. Go ahead and download it, or even copy it to your own account to make modifications.

3D Printed Dust Skirt for Nomad 883 Pro

I got a new Nomad 883 Pro and it generates a lot of dust. This is going to be a big problem as I need to cut material that have hazardous fibers. I decided to make a dust skirt (aka vacuum skirt or vacuum shoe or vacuum head) so that a vacuum can suck up dust as the machine cuts. I 3D printed this thing, which is partly PLA plastic, and the skirt is 3D printed TPU (polyurethane) filament. The skirt is two layered and the cuts are made in a interleaved pattern so there’s a better seal. 3D printing makes this project really easy, just clean up the print, superglue, and tap the hole for the screw. The vacuum hose is 1.25 inch diameter and it just shoves right in with a perfect fit.

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The CAD files can be downloaded here

3D Printed Micro Match Connector Crimp Tool

I have a project that involves Micro Match connectors. They are similar to IDC connectors, but with a lower profile and a zig-zag pattern.

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I had to crimp one connector onto a ribbon cable, my first attempt using a vice failed miserably, instead of the conductors being forced into the teeth properly, the forces instead crushed the connector. Unlike a IDC connector, which is mostly solid plastic, the Micro Match connectors are pretty hollow, thus weaker.

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Continue reading to see how I solved this problem.

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3D Printed Peristaltic Pump

I 3D printed a very durable peristaltic pump. It is capable of pumping very thick liquids at as much pressure as the tube can handle. It is durable because it is printed at 100% infill at high thicknesses and uses steel ball bearings. It is capable of such strength because it is using a massive 12V DC brushed motor that has a 150:1 gear ratio metal gear box, which means several kilograms of torque.

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For design files and more details, please continue reading.

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3D Printed Battery Recharge Dock for Parrot Rolling Spider

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I got a Parrot Rolling Spider for fun. The batteries are 570mAH and the life is under 10 minutes, plus the reviews often mention that the batteries will lose their capacity quickly. Further research into this problem indicated that charging them slowly will alleviate this problem.

I wanted a few spare batteries and a way to recharge them. I decided to DIY a dock for them. I had a handful of spare parts, such as the MCP73831 and plenty of small perfboards. All I needed to do was 3D print something to hold the batteries in place, and this is what I came up with.

More pictures if you continue reading.
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Olsson Block Low Temperature Troubleshooting

In my quest to have the best Ultimaker 2 possible, I have installed a Flex3Drive kit and Olsson Block kit.

Recently I have been having issues with inter-layer adhesion. I tried a speed test and would consistently fail them, either due to jamming or inter-layer splits… This is a story of how somebody more experienced in electrical and software engineering tackles a thermodynamics problem.

Bonus: this article contains a picture of my extra power 400W supply for the Ultimaker 2

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Ultimate Ultimaker Upgrades 2015q2

After around 100 hours of printing, the teflon coupler above the nozzle of my Ultimaker2 started to deform under heat, causing friction on the filament. Combined with the relatively weak and not-gear-reduced feeder motor, this resulted in a frustrating amount of underextrusion.

So I decided to buy some replacement parts, and some upgrade parts in the process. Obviously I ordered a replacement teflon coupler. Second, I ordered a Flex3Drive kit. Third, I ordered a Olsson Block. After all of these were installed, I can honestly say my printer is now print-and-forget. In 30 hours and 5 filament swaps, I haven’t had any imperfections at all, and the only failed print was due to bad bed adhesion due to the model curling up. I haven’t had to touch the tuning menu once, and I never had to use my extruder floss. Continue reading to learn more about these upgrades and my experience with them. Continue reading

PS4 Playing NES Cartridges

Update March 2015

This project won 2nd place in this Reddit contest about functional 3D printed projects. Thank you very much to ToyBuilder Labs for being the sponsor.

Questions and Answers

  • Why not use a bigger 3.5″ drive? They can hold much more and cost much less.
    • I can edit the design anytime I want and 3D print it anytime I want, so I will definitely consider it.
    • But I had a few spare 2.5″ drives laying around.
    • The fake cartridge is a funny idea so I did it for the LULz! (and protects the drives)
    • Please note: 3.5″ drives will require an external 12 volt power supply, while 2.5″ drives only require the 5 volts from the motherboard.
  • What parts are needed?
    • #4-40 thread 0.25″ long countersunk machine screws, for holding the hard drives inside the cartridges
    • #4-40 thread 0.5″ long countersunk machine screws, for holding the dock to the cover
    • 0.5″ long nails to hold the SATA connector in place
    • something like this SATA extender, but note that this isn’t the exact same one I used, so you should measure it yourself and edit my files before printing my files
  • How did you connect the cable to the motherboard?
    • This was actually pretty hard, I ended up gluing a popsicle stick to the connector first, and then used the stick to poke the connector inside and into the motherboard’s connector.
    • This can be improved by some sort of 3D printed dummy drive, but I got tired and wanted to wrap the project up.
  • In the picture of the Ultimaker, why do the plastic look a bit rough?
    • Those are failed prints, I only used them for the picture, specifically because the roughness emphasizes the fact that they are 3D printed.
    • The final good prints are so good that you cannot tell that they are actually 3D printed. The Ultimaker is very high quality.
  • Why didn’t you launch the game?
    • I didn’t connect the system to my network, so the PS4 didn’t let me launch them, since they are all digitally downloaded and thus require authorization first
    • Don’t worry, they all work once connected to the internet.
  • I’ve seen something similar before…
    • Adding a hard drive to the PS4 using SATA extensions isn’t a new idea at all, somebody already added 6 TB to it, using a 3.5″ drive, but he used a external enclosure and a external 12 volt power supply.
    • I went to CES2015 and saw Nyko’s Data Bank. I want to make it clear that I started my design a long time before Christmas, and was not inspired or influenced by Nyko
  • Ask me a question, if it is a popular question, I will answer it here.

You want files? Click Here. I hosted the files on YouMagine, and I provided the STEP file format, which you should be able to open with most 3D modeling software. So if you want to change the design for 3.5″ drives, or chose another cartridge shape, you can!

NOTE: the dimensions of the fake NES cartridge I used are not the same dimensions as genuine NES cartridges, so genuine cartridges will not fit in this project, and the fake cartridges will not fit inside a genuine NES deck.

Ultimaker2 Bearing Spool and Bearing Guide Upgrade

This is an upgrade to the Ultimaker2 3D printer for people who have spools that do not fit the original spool holder, and spools that are too tight and thus do not feed smoothly, causing under-extrusion.

It is composed of two assemblies: a replacement for the filament guide and a replacement for the spool holder. Both utilizes ordinary skateboard bearings to achieve smooth rotation. The conical shape of the spool holder allows for any sized spool to be used, easily swapped because it uses a wing nut.

um2 spool holder upgrade angleum2 spool holder upgrade sideum2 spool holder upgrade cross section

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Files are available on YouMagine. I want to emphasize that I am sharing the STEP files, not just STL, because STL are harder for people to import and modify than STEP files. SolidWorks files are also provided.

The cross section images shows you how to assemble the upgrade parts. The screw diameters are #6 for the filament guide and 5/16″ for the spool holder. Please figure everything else out from the cross section images.

Q-Bot Tx Module for Taranis

Most micro (palm sized) quadcopters are RTF and comes with a crappy cheap transmitter, and I really want to use my awesome expensive Taranis. I found out that Q-Bot comes with a tiny transmitter module that I can connect to my Taranis.

I didn’t want some ugly thing dangling off of my Taranis so I decided to 3D print a module that will contain the Q-Bot transmitter circuitry and plug into the Taranis’ module bay, which fits “JR” style transmitter modules.

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and here is what it looked like before:
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The 3D files (SLDPRT, STEP, STL) Continue reading

My First 3D Printed Quadcopter

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3D printed using my Ultimaker2 and many colors of PLA plastic at 100% in-fill. It is my first design, featuring folding arms, tucked away electronics, and anti-vibration mounted flight controller. It is designed to be friendly with FDM 3D printers, employing some special techniques. The frame is extremely strong.

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I need more practice. I need to buy a few more propellers and few more batteries as well so I can practice for longer.

Flight controller is a Continue reading

3D Printed Raspberry Pi Case + Camera Case + Server

There is a law of the universe which states that if you own a Raspberry Pi and a 3D printer, you must print a case for it.

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There are plenty of case designs for the original R-Pi Model B, and some for the R-Pi Model B+, but there are a few minor annoyances I noticed about them. Plus I really like DIY my own designs, so I designed my own case to suit my own needs.

  • Designed specifically for 3D printing, meaning careful attention to how plastic is extruded, no weak spots, and no overhangs. Plenty of fillets and chamfers.
  • No screws required. The case is held together using latches that take advantage of the plastic’s natural flexibility. It is designed for just sitting on a desk, or attached via velcro/double-sided-tape.
  • I also designed a small case for the camera, which follows the same principles.

These parts are because I am going to set up a web server for my 3D printer, running OctoPrint and also serving live video through the camera. I also setup a cron job to take a picture periodically and upload it to this server. I can also stream video to my Ustream channel. (neither of these servers are 24/7)

I am sharing all of the source files for the models, not just STL files. It is very annoying when people only share STL files, because STL are not import or editing friendly. With my SLDPRT file, you can change one height dimension inside and it will re-adjust the entire case, maybe if you need more clearance on the bottom for screws.

files for R-Pi case

files for camera case

Ultimaker2 Improved Filament Feeder

The Ultimaker2 3D printer has a problematic filament feeder mechanism assembly. When the filament is stuck and the feeder motor turns, it can grind away the filament, causing a gouge in the filament. The gouge makes the problem worse since the tensioner bearing will force the gouge into the feeder’s knurled wheel more, causing even more grinding. This jam happens frequently because sometimes even if the temperature sensor reports that the print head hot end has heated up, the plastic hasn’t melted yet and can’t move yet.

The Ultimaker2’s feeder design is both beautiful and disappointing. It is beautiful in the sense that is is symmetrical and compact. If you had a dual extruder, you can use the same feeder mechanism for both feeders, cutting down on manufacturing costs. But it is impossible to disassemble without removing the stepper motor because the same 4 screws that holds the feeder together also holds the stepper motor in place. If you attempt to open the feeder mechanism to clear a jam, the motor will fall off. The motor is also covered by a metal casing so you need to remove the casing as well. This is very annoying.

There is no other way to move the tensioner bearing because the design is so compact and the spring is tight. There is no other way to remove the feed tube either.

What I needed was a feeder mechanism that can be opened up without removing the stepper motor, and also allow the tensioner bearing to be moved out of the way easily. I came up with the following design:


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3D Printed Tripod Adapter for Smartphones

I got a new 3D printer, a Ultimaker 2. After testing it out with some small test prints, I printed my first own custom design on this printer. (I’ve only designed for SLT printing previously and not extrusion printing before, this is my first design for extrusion printing).

It’s an adapter that holds my smartphone (Samsung Galaxy Note 3 with a wireless charging S-View flip cover case) and has threads (a 1/4″-20 threaded nut) so it can be mounted to a standard camera tripod. This phone has 4K video recording so why not?

The design is very custom because I need to consider the fact that I have a S-View flip cover case.

(I know I could also use threaded metal inserts, but nuts are easier to buy at the local Home Depot)

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