Tools 3D models
Jigs, fixtures, small helpers, and repair-friendly printable tools.
The Amazing Gyroscopic Cube Gears!
Update - I have re-printed and assembled this and in the process made several changes to make this much easier to print and assemble. With the changes that I made, I only had a couple spots where I had very minor edge cleanup because of the first layer being squeezed for adhesion. I have removed the need for sanding and other finish work that was previously needed. (I do however still recommend lubrication). I also wrote a full set of assembly instructions with pictures detailing my process for assembly. I hope that this helps those who build this and I thank those who made it through the assembly with my previous version. End of Update-- Come one come all and witness the thrills of the Ama... This hosted file keeps creator credit and license details.
Screwless Heart Gears
UPDATE: There is a new version of this design which is more reliable to print and easier to assemble. I highly recommend you use it instead: the original source At last, here is the much-requested 100% printable heart gears. No more ugly bolt holes! This was designed along the same lines as the screwless cube gears: the original source , and in fact uses the exact same center block (though the pins are slightly shorter). UPDATE: If you lack a 3D printer, you can now buy these from CarryTheWhat at http://www.etsy.com/shop/CarryTheWhat . The size has been increased a bit from the previous version to accommodate the printed pins, so it now measures 100mm... This hosted file keeps creator credit and license details.
Sliding Door bolt Print fully assembled
Make sure to check out the original source for add-ons for this thing. This includes alternative fixings and spacers for the main bolt and standard receiver. Update 6 July 2020. I've added a sliding bolt release tool. Print 100% infill. Place part with hole on a solid surface, put bolt in bolt shaped recess in this part then put other part with protrusion over back of bolt and tap with a small hammer to release. I hope this makes sense, just let me know if this works for you. It should get the bolt moving and is safer than trying to find random items and causing injury, I've added a fully assembled door bolt to print. either complete or just the bolt itself. I've includ... This hosted file keeps creator credit and license details.
Resistor lead forming tool
If you like your resistor and diode leads to be bent uniformly and consistently, then this tool is for you. It also provides a useful task for the wee little ones in the house who want to assist you with your electronics projects. This hosted file keeps creator credit and license details.
3D printable bottle and screw cap
Creative Tools Creative Tools supplies 3D printer and 3D scanner products incl filaments, accessories and support and also 3D software for leading CAD, modeling, animation, and rendering. Here we have a small bottle and screw cap that you can print on your 3D printer. Size: 95 x 95 x 40 Inner volume: 139 cm3 Plastic volume (with cap): 20.5 cm3 Thread: Screw cap uses same thread as common soda bottles By Creative Tools Home - YouTube - Things - #3DBenchy - Twitter - Facebook - Instructables - Instagram - Pinterest - Flickr - LinkedIn This hosted file keeps creator credit and license details.
vise
main body is in four parts, glued together. parts will need to be scaled up and aligned to the print bed surface. the main screw, handle and caps required a brim for support. 3x .25-20 screws also needed. I also added a main body stl file incase you want to try and print it as a single feature. This hosted file keeps creator credit and license details.
Working Micro Gear Heart Keychain
Based on Emmett's ever popular gear heart: the original source This version is about half the width of the original (50 mm), which means its 1/8 the volume and a much faster print (yay math!). i find it takes me ~2 hours to print one (and ~8 for the original) Rather than just being a straight scaling, this version has been tweaked so taht it will still rotate. The main differences are the number of gear teeth (much fewer, and larger), gear ratio (it now takes 2 rotations to realign, unfortunately) and pins (made much beefier, and they are all one length). Additionally, there is a hole through the tip so that it can serve as a keychain! Print them out by the dozen and give... This hosted file keeps creator credit and license details.
Customizable Lithopane
Click "Open in Customizer" to turn the image of your choice into a Lithopane! We used the Mona Lisa, but you could use any photo you want. The Lithopane tool generates a 3D model that looks like a rough terrain map. Download the file, print it on your MakerBot Desktop 3D Printer, and you've got a picture perfect pane to hang on your window. Three cheers for the lithopane pioneers on original source, such as cymon and pp3dpNL! For more information on this old art form, check out the Wikipedia article here: http://en.wikipedia.org/wiki/Lithophane This hosted file keeps creator credit and license details.
Saber-Toothed Cat Skull
Just one look at the impressive skull of this massive feline and you’ll be glad it’s been extinct for 11,000 years. Walking the Earth alongside our human ancestors for millennia, saber-toothed cats’ impressive fangs were precision killing tools that helped earn them the scientific name Smilodon fatalis. With the intent of making the 3D printing ecosystem more accessible to educators, MakerBot Academy has selected Common Core Standards for English Language Arts and Mathematics that align with our 3D printed content. Our goal is to lower the barrier to 3D printing in the classroom by directing teachers to standards-aligned resources. We hope to make the process of incorporating 3D printing te... This hosted file keeps creator credit and license details.
Elliptical Gear with no center pivot
A slight remix of PerryT's wonderful Elliptical Gear set. I liked playing around with the gears connected at the off-center pivots, and thought it would look cool to remove the center ring entirely. You can find the original thing here, along with other types of connecting arms: the original source I've made a new oval gear with a spiral design in the middle. Check it out here: the original source This hosted file keeps creator credit and license details.
Screwless Cube Gears
UPDATE: This design has been superseded by my newer version, the original source , which has better pins (and more gear ratio options). I highly recommend you print that instead, as it prints more reliably, assembles much easier and holds together better. Thank you, all of you who've made cube gears and posted pictures. Since tbuser made these lovely pin connectors, the original source , I figured it was high time to make a fully printable cube gear set. Now you needn't bother buying any more screws: this one snaps together. UPDATE: For anyone without access to a 3D printer, you can now buy these from caesia on her Etsy store: http://www.etsy.com/shop/... This hosted file keeps creator credit and license details.
Three Heart Gears
Just in time for Valentine's I've updated my Heart Gears. These use my new snap pin library, so they print more reliably and are much easier to assemble. I've also included three different gear ratios so you can choose how much frustration you wish to impart. Assembly instructions can be found in this video: http://youtu.be/O-qwmRwOpFQ Alternate instructions are here https://jig.space/viewer?jig=427 , courtesy of greenlig. Pretty cool system for making interactive 3D instructions - check it out. I didn't make this design Customizer-friendly, because there aren't really changeable parameters. However, the OpenSCAD file has been rewritten and greatly simplified to make it easier to cut gears... This hosted file keeps creator credit and license details.
Gear Bearing
The trouble with 3D printing a ball bearing is that spheres don't adhere to the 45 degree rule, so they tend to print poorly, or if metal balls are used instead, then the bearing requires assembly. This is a new kind of bearing that can only be manufactured by 3D printing and comes preassembled. It is a planetary gearset and functions like a cross between a needle bearing and a thrust bearing. No cage is required to keep the rollers in place, because their gearing keeps them perfectly spaced. The gears are all herringbone, which is why it cannot be disassembled and also why it can act as a thrust bearing. If you're wondering how well a 3D printed bearing could work under load, please check... This hosted file keeps creator credit and license details.
Universal stand-alone filament spool holder (Fully 3D-printable)
Creative Tools Creative Tools supplies 3D printer and 3D scanner products incl filaments, accessories and support and also 3D software for leading CAD, modeling, animation, and rendering. A fully 3D-printable rotating stand for filament spools, designed to be easily made without the need for fasteners such as screws, nuts, shafts, glue, etc. Every single component in this spool holder comes right from your 3D printer's filament. The spool holder's spindle is shaped to fit the vast majority of commonly used filament spools with shaft holes ranging from 16 mm to 62 mm in diameter. It is also compatible with spool-less filament coils. The spindle which holds the spool's weight rotates on its o... This hosted file keeps creator credit and license details.
Ball-joint articulated octopus
This started out as an exercise in making the smallest ball joint tentacle that I could get to print reliably on my printer. It turned into a cute little octopus when I decided to make a fun gift out of the tentacles. It's surprisingly annoying and time-consuming to build, since each segment needs to be hand-trimmed of support and carefully snapped into the next, but the resulting toy has a lot of flexibility and posability. Printing the segments in all different colors to make a rainbow octopus is optional but highly recommended. Update 4/5 - I was experimenting with some freehand sculpting tools, and created a big-eyed alien head for the octopus that I've uploaded. Update 4/7 - added a fa... This hosted file keeps creator credit and license details.
Nautilus Gears
Nautilus gears based on logarithmic spirals. Gear profiles generated based on research by Ágnes Dabi, Zsigmond Istvan Varju, Dr. Laczik Balint et. al. at the Budapesti Muszaki es Gazdasagtudomanyi Egyetem. Agnes, Dabi (2005). Változó áttételű fogaskerék tervezés (Doctoral dissertation). Budapesti Műszaki és Gazdaságtudományi Egyetem The gear profiles were generated using this Maple script for which full credit goes to the original authors: http://www.maplesoft.com/applications/view.aspx?SID=95483&view=html&L=G Rendered animation of the gears: http://www.youtube.com/watch?v=dtkEyZwuwH4 Don't own a 3D printer? Now available for purchase at Shapeways ( http://shpws.me/Kdit ) I'm not going to u... This hosted file keeps creator credit and license details.
Makerfarm Prusa I3V Extruder Tool
This little tool make it easier to change filament. Pull the extruder tab with one hand, insert this tool as shown in the picture and release. Now you are free to remove or insert a filament. Remove the tool before printing. The default thickness of the tool is 5mm. If you want to tweak any of the dimensions click on the Open In Customizer link in this page. This hosted file keeps creator credit and license details.
E3D hotend groovemount for i3 with RepRapPro miniextruder
This is a part that mounts on the 30mm spaced holes on your Prusa i3 x-carriage ( https://github.com/josefprusa/Prusa3/blob/master/single_plate/src/x-carriage.scad ). It has a two-part groovemount hole sized to firmly grip an E3D hotend ( http://www.e3d-online.com/ ). It has holes to bolt on a RepRapPro miniextruder ( the original source ). Together, they seem to work pretty well! You need 2x 20mm bolts for the groovemount hotend clamp, with nuts. You need some bolts with short heads (pan head) bolts to fasten it to the x-carriage. This hosted file keeps creator credit and license details.
Leveling Locks for Printrbot LC
These four locks grip the leveling thumbscrews of the Printrbot LC to prevent undesired rotation as the build platform jiggles in operation. I recommend a dab of hot glue on the heads of the leveling machine screws (under the Y carriage) to keep them from rotating. This hosted file keeps creator credit and license details.
Fish Hook Hand tools
Fish Hook Hand tools This hosted file keeps creator credit and license details.
Bar Holder
I made this part to hold what plumbers call "1 inch copper pipe" (near actual 1-1/8). I advise you use a solid structure infill like trianguler and stay away from rectilinear on this print. I am placing this on public domain so that every sentient being may use this at their own discretion. Please give a like if you like this. Computer Aided Designed on Bobcad V30 Computer Aided Manufactured on Simplify 3D V4 Printed on Creality CR-10 Stop Human Trafficking Stop Title IV-D Live long and prosper This hosted file keeps creator credit and license details.
DJI Phantom 2 clamp extension for Nexus 7 tablet
Extensions for jaw gripper for DJI Phantom 2 drone This hosted file keeps creator credit and license details.
Gearstruder J4 - Dual Drive Extruder
Minimal extruder housing for use with the Printrbot Gearhead drive gears , 1.75mm filament, and a NEMA14 motor. The secondary gear is inserted from the side, and the additional M3 screws or setscrews hold the gear in place and adjust the tension. It's designed to use a bowden coupler from RobotDigg . Make sure the setscrew doesn't stick out on the primary drive gear, especially if using a motor without a D-shaft. Filament is Emerald Green PETG from Atomic Filament . There is also a NEMA17 version and info about several other dual drive bowden extruders I've just uploaded on thrinter.com This hosted file keeps creator credit and license details.
Vacuum Attachment
I believe this was for a Hoover Cruise Multi Floor handheld vacuum. (Wife returned it to get the Dyson... new attachment coming soon) The only attachment I was using was the crevice tool because I didn't like the others. So I designed this to make cleaning the couch and spot cleaning after my kids easier. I found the bristles just throw crumbs around where this worked great. This hosted file keeps creator credit and license details.
Bed leveling tool
fit to scale, set the first layer hight to .3mm and remember; righty tighty leftie loosie :D This hosted file keeps creator credit and license details.
Cetus 3D Tool Rack
This is a handy holder for your Cetus 3D stuff. This hosted file keeps creator credit and license details.
Model of TH3D EZABL 12mm sensor
Not for printing. This is a kind of prop; a 3D mesh to use within a 3D CAD tool, to design things that must hold, support, fit, or interface with, an EZABL bed level sensor. Someone posted a comment in my other project, the Z-X mod, asking if there would be support for the TH3D EZABL auto bed leveling kit, so I went to their website to try and find out what I needed to do to support it. I did not find drawings, or even pictures; so I sent an email to TH3D, and they sent me a ton of images of their sensors (they have two models: 12mm and 18mm diameter), the photos showing digital calipers measuring the probes' most important dimensions. This is a model of the thinner probe, the 12mm one, --w... This hosted file keeps creator credit and license details.
Model of TH3D EZABL 18mm sensor
Not for printing. This is a kind of prop; a 3D mesh to use within a 3D CAD tool, to design things that must hold, support, fit, or interface with, an EZABL bed level sensor. Someone posted a comment in my other project, the Z-X mod, asking if there would be support for the TH3D EZABL auto bed leveling kit, so I went to their website to try and find out what I needed to do to support it. I did not find drawings, or even pictures; so I sent an email to TH3D, and they sent me a ton of images of their sensors (they have two models: 12mm and 18mm diameter), the photos showing digital calipers measuring the probes' most important dimensions. This is a model of the larger probe, the 18mm one. If y... This hosted file keeps creator credit and license details.
Ford Galaxy & VW Sharan Sidelight Removal Tool
For those of you who have tried to remove the sidelight bulb from a Galaxy or Sharan Mk2. You have a little flap in the mudguard that you side open and then try to reach in to unscrew the bulb holder, impossible without the use of a small handed helper, so I made this tool; I can now change bulbs in 15 seconds. Fill your boots. This hosted file keeps creator credit and license details.
SD Card Clip for Rasberry-Pi
Any owner of an early Raspberry-Pi will appreciate how flimsy the SD card holder is. The thin strap across the back of it is easily broken, and snapped off. This design makes a clip that slides onto the Raspberry-Pi and recreates a slot for the SD card. My design is rather cumbersome compared to the elegant solution devised by gould300 ( the original source ). However, because it supports the card beyond the edge of the PCB, it maybe more robust for schools and other places where the R-Pi boards could get rather rough treatment. Not having to be glued on also means any broken clip can easily be replaced. As you might guess I discovered gould300's design after I had print... This hosted file keeps creator credit and license details.
Braille Signs
Braille.cards is an easy-to-use online tool that allows you to create 3D models of braille signage. http://braille.cards/ This hosted file keeps creator credit and license details.
G370 Charging Stand
G370 Charging Stand AKA: the missing accessory This is a drop in charging stand that I created for my "Philips Norelco G370 All-in-1 Grooming System". It is designed to clamp to the molding in my bathroom. I doubt it is useful for anyone because it fits my bathroom and this obsolete product... However I thought I would add all my designs for fun. This hosted file keeps creator credit and license details.
Rennsteig centre punch compatible wall mount
This Design is part of the Ideenreich tool wall. This is a wall mount for Rennsteig center punches 431 120. Dies ist ein Wandhalter für Rennsteig Körner 431 120 . Design by Dirk Feyerabend This hosted file keeps creator credit and license details.
busch & mueller IX-RED compatible seatpost clamp
This is a Busch & Müller IX-RED compatible clamp for seatposts with a diameter of 33,9mm. Works best with a bit of rubber between seatpost and clamp. Dies ist eine Busch & Müller IX-RED kompatible Klammer für Sattelstangen mit einem Durchmesser von 33,9mm. Funktioniert am besten mit etwas Gummi zwischen Klammer und Sattelstange. Design by Michael Buchert This hosted file keeps creator credit and license details.
Simple 32mm Hose adapter
Simple cone adapter to connet electrical tools to vacuum cleaner This hosted file keeps creator credit and license details.
6D Gyroscope Concept. ( Space Stabilisation - Location Fixation )
A concept for a 6 Directional Gyroscope, resisting equally to all 6 axis, in space. the gyroscope utilizes a sort of 6D gearbox, a 6D differential if you will, connecting all axis and time them mechanically, allowing for instance for 4 horizontal motors, to power two inverted main vertical axis. sort of... i have not seen a gyroscope resisting over all 6 axis before, have you? if we could have this machined, it could be a incredibly useful tool to have for science as well. it could stabilize a craft,in space, to hoover and fixate its location. it could be used as the core of a space station, a winged disc or uniwing, many applications come to my mind. flying operating rooms, flying firefigh... This hosted file keeps creator credit and license details.
Gear Keychain
This is my first thing I uploaded, this is for a school project so I haven't printed it yet, I will add photos when I do This hosted file keeps creator credit and license details.
Curtain Straight Gear
This part is to replace a broken straight gear that turns the angle of a curtain. The part is really small, so use small resolution. This hosted file keeps creator credit and license details.
CLAMP ON MONITOR USB3 HUB
I used the circuit boar from this cheap usb3 hub https://www.ebay.de/sch/i.html?_from=R40&_trksid=p2047675.m570.l1313.TR0.TRC0.H0.XNeu+4-Port+USB+3.0+Data+Hub+5+Gbps+Superspeed-Verteiler+USB-Steckplatz+Anschlus.TRS0&_nkw=Neu+4-Port+USB+3.0+Data+Hub+5+Gbps+Superspeed-Verteiler+USB-Steckplatz+Anschluss&_sacat=0 This hosted file keeps creator credit and license details.
Build plate lock
With this you can make a removable buildplate with no clamps on the top of the plate. It is easier to take off a part there wont easily leave the build surface when the buildplate is flexible. For dual extruder printers you can make a wider buildplate because of the offset between the extruders. See pictures It is best for PLA printing with no heated build plate because of the heat contact to clamp. Print it in ABS if possible. I will make a more heat resistant version later. This hosted file keeps creator credit and license details.
Toilet Seat Bumper
Replacement bumper for a toilet seat. Designed to fit 6.5mm diameter holes, spaced 30mm apart. I used Zen Toolworks flexible filament for the bumper. This hosted file keeps creator credit and license details.
Friction Welded Dodecahedron
This is a dodecahedron created by friction welding 12 pentagons together. This is a minor remix to the truncated Icosahedron I previously published. The individual pentagons are printed separately. After printing the pentagons they are welded together using a Dremel rotary tool and a small section of printer filament. The friction welding process works for PLA, ABS, 1.75mm and 3mm filament. More information on the process used for friction welding this thing is available here: http://www.scorchworks.com/Blog/friction-welding-with-a-dremel-rotary-tool/ EDIT: I updated the SCAD file to make it more easily adjustable from a pentagon to other shapes and added comments. This hosted file keeps creator credit and license details.
Locking Shower Ring
This is a shower ring that's based off of one we had in our shower. I made this in FreeCAD and printed it on my RepRap. NOTE: Even though I have this connected to a master link and then another shower ring, this piece has enough flexibilty to be put directly on the shower rod and still clamp shut. I printed it at 30% infill. This hosted file keeps creator credit and license details.
Ultimaker Alien Axis Tool
Use this to align the Ultimaker X and Y axes, to make them perpendicular. This tool was cut from an alien bone. It wants to help you. Its true motive remains unclear. It's probably friendly, but replicate it at your own risk. This hosted file keeps creator credit and license details.
Dead Blow Mallet
I have been working on a set of entirely 3D printed hand tools to build my CAD skills. The hammer head is mostly hollow. Print it with the lowest amount of supports as possible, (5% or less). Once it is printed use a coat hanger or bent nail to break out as many of the internal supports as possible. fill the head with sand, BBs or lead shot. If you print the mallet at full size you can use a 3/8ths bolt to plug the fill-hole, you can also use hotglue. This print was designed for my large format printer, you may need to scale it down for yours. The origenal inventor files, as well as the STLs are attached. Feel free to use or modify the designs. These designs are in the public domain. This hosted file keeps creator credit and license details.
Speed Square Holster
As seen on This Old House. Tool belt clip on holster for a speed square. This hosted file keeps creator credit and license details.
Mankati-ShroudRH-V5
A more compact and purpose fit cooling shroud for the cooling peeks of the Mankati printer. Replaces the right hand metal bracket and the four nuts. The six screws are re-used. Will require at least utility knife, or preferably a Dremel tool to remove little material where already weakened for the fan's wires. Designed to be printed with single extruder with no support at 100% fill. To be used with the "Mankati-FanInlet25V3". This hosted file keeps creator credit and license details.
Filament Winder Handle, Crank and gear assembly
This is the first upload for the Filament winder on my kickstarter project. The filament winder is designed to work with a hand crank and also a stepper motor. These gears will make more sense when you see the video (being processed and uploaded soon). I use Pronterface and the extruder motor 4 pin on the arduino 2650 board. My next challenge is to interface with an outside power supply. I also have a solar powered motor on the table ready to be experimented with! This hosted file keeps creator credit and license details.
45mm spacing mount for Axial cooling fan duct
Made my own mounts to interface with the 45mm spaced M3 bolts of my x carriage belt clamps for hanging the fan duct arms from Doctek's cooling duct setup. One extends out in the XY plane, the others drop down below the mount in the Z (15mm and 25mm). This hosted file keeps creator credit and license details.
Variable-Edge Center Scribe Hand Tool
Used at Bay Mills Community College by our Master Bow Maker Web Kinney to draw a center line down the length of a bow which can vary in thickness and curvature. Place a pencil down the center. Use a 1/4in. x 20 bolt in the threaded hole to hold the pencil in place. Hold the tool with the two opposite plastic cylinders in constant contact with the sides of the object. This keeps the pencil centered between them at all times. This hosted file keeps creator credit and license details.
Socket wrench
Fits in your hand and does the job with no complaining! This hosted file keeps creator credit and license details.
Unicorn marionette
Made from Cubify to Rhino 5. Tested on Slic3r. I stacked a cylinder on to hand drawn arms and legs. The legs were made around the unicorn with the curve point, extrude and cap planar curve tools. Please print with mindfulness toward support material generation, and that it is a work in progress. This hosted file keeps creator credit and license details.
RigidBot USB Hub Mount
Mount for a USB Hub you can attach to the RigidBot frame. I use it to power USB fans and lights. Uses a usb hub with switched ports * and 4 cylindrical magnets (6mm diameter x 4mm height). The magnets are optional, and work as a tool holder. * affiliate link This hosted file keeps creator credit and license details.
RigidBot Magnetic Tool Holder
Uses cylindrical rare earth magnets, 6mm diameter x 4mm height. This hosted file keeps creator credit and license details.
File Handle
This is a file handle for a metal file. Over the years I have acquired many files and it is now time to organize them so that they all have handles and can be hung on a tool board. The handle uses a tapered insert that can be secured to the file and then the handle can be put on over the insert and file. I have added a hole to the current design and have scaled the handle so as to have a n entire range of handle sizes for different size files. The set will be added here soon. For more info: http://frankieflood.blogspot.com/2014/08/file-handles.html This hosted file keeps creator credit and license details.
Rolling Tool Chest Latch Replacement (Husky or Keter brand)
I own one of the rolling toolboxes pictured, and use it to transport my tools to and fro. On day, as I wheeled the thing over a curb, the cheap plastic latch that holds the top shut broke. This is a replacement piece. This part should fit the following: Husky Brand Sliding Tool Chest (Available in Home Depot stores in the USA) Keter Brand Sliding Tool Chest (Available in the the USA and Europe) I've included the Solidworks 2012 file, so you can modify it as needed. This hosted file keeps creator credit and license details.
Cactus v5 Flash Trigger Wrench
The nut on some of the Cactus v5 flash triggers it too tight to turn by hand. If you use this wrench to turn it back and forth enough times, it will loosen up. This hosted file keeps creator credit and license details.
Intel Galileo tower mounting parts
If you happen to have 4, 8, 12 or more Intel Galileo devices you can assemble them into a big tower. This design allows you to see all the boards and blinking lights while holding them tightly together. All of the network cables and power goes thru the center of the tower so you get a clean view of the boards and excellent cable management. You can then use Meshcentral.com to remotely manage all of the devices over the Internet and use Arduino Mesh management tools to push sketches easily. Included a part file will print 6 corner parts in one pass, another file with 4 top parts and the STL and Blender files. Video: https://www.youtube.com/watch?v=dQMKWrHOg4k . The original tower at 16 Intel... This hosted file keeps creator credit and license details.
Rest for cue snooker
Also cross rake or jigger. A type of rest, with a straight shaft and "x"-shaped head for resting the cue upon. This hosted file keeps creator credit and license details.
Zen ToolWorks Filament Wheel Extension, Part A
This extension is designed specifically for 1.75 mm ABS filament sold by Zen ToolWorks on Amazon. It is designed for MakerGear M2's filament wheel holder, so it is nice and thick for structural purpose. I also made a thinner extension for keeping filament from falling off the cardboard wheel. This hosted file keeps creator credit and license details.