A co-worker has a Traxxas JATO 3.3 radio controlled race car. He broke one of the struts and has ideas to make a custom setup. I worked with him for about an hour to sketch this up. It hasn't been printed yet but looks promising.

Notice the "JC" for his initials built into the structure. 3D Printing for the win!

There is a support peg included to hold the ball joint up. I suggested just using a bolt through a real ball joint, but the customer insisted we try it. Clip the support off and round off as needed.

Adapt your lovejoy connector to your Nema 17 5mm rod motor. I was sent the wrong one so took the opportunity to create the Love Joy 5mm coupler for the World. Fits perfectly on the 5mm Nema 17 Stepper motors. Fits a M6 Nut and Screw.

Download V2 Version.** Alot Stronger than V1

I tried designing a motor mount - which turned out very cool - but ultimately didn't work for my DrawBot. ( thingiverse.co/thing:16725 ) I started this version from scratch and is dead simple and it just works.

I recently built the Ninja CNC kit from CNCSNAP.com. They include some pretty good harware but I wanted my machine to be able to cut heavier material. So i began making upgrades to the machine. I replaced the laser cut motor mounts with HEAVY DUTY 3D printed ones that are probably a little "over" built. But stronger is better right? I also designed a very robust tool holder that fits the motor they supply with the kit. I love this tool holder, it works great. Note: you will need to drill a hole in the end of the clamp to bolt it together. I recommend a small diameter machine screw. Next I stiffened up the guide rods with a set of support claps on each rod. I made them slightly under sized so you will need to run a 1/4" drill through them. My "Y" axis coupler broke so I replaced it with thing 7059. I can't find the corner bracket file I used to stiffen up the frame but I'll post it when I do. I also bolted together my "Z" carriage because it wanted to split with putting the tool holder one it.
If you have any questions or want me to make other upgrade/ design changes just let me know.
Thanks and I hope you put these files to good use.

youtube.com/watch?v=GYD6TE_If6U

After watching the great triffid_hunter design I adapted mine in order to fit a Sells Mendel.

This is a nice addition that simplifies the printer, saves vitamins and contributed to a better world.

Home wind turbine based on a NACA 4412's profile with an optimized twisting

A standard motor pulley for T2.5 belts. 16 teeth, so works as a drop-in replacement for a 8-tooth T5 pulley.

Some say that this part is a vitamin, but I didn't believe them.

I printed this with 0.35 nozzle, 0.20 layers, 0.36 tracks and 10 secs per layer, with PLA.

Stops the aluminium coupling from opening from the weight of the z-axis on the Prusa Mendel.

Just modified the bottom gear of the screwless heart gears to fit my old kysan DC extruder motor (which turns very slowly on 5V USB XD)

youtube.com/watch?v=YefD_BvxgzY

130mm RC PLA printed Buldozer
with servo motor and gears
laptop batteries
7805 voltage regulator
"all functions" each thread and the arm.

A motor mount for mounting a ø45mm brushed electric motor (in this case a 'speed700') perpendicularly onto the end of a 22mm square tube or wooden beam. I used it as part of a wind tunnel I built.

A few months ago, my school was getting ready for a theater run of "The Little Shop of Horrors" and needed a tripod that could mount a video camera and be controlled from back stage wirelessly via radio. The whole idea behind the thing was that at the end of the play, when the plant achieved sentience, a camera, hidden inside of the huge plant, would look around at the audience and pick-out one member of the audience to devour.

I was most dismayed to find out that junior year of high school is not the most forgiving time to be trying to bang-out a completed, complicated, reliable device involving software, electronic and mechanical hardware as a one-man development team. A student needs more than 4 hours of sleep every night to be able to at least attempt to hold an intelligent conversation once a day for the duration of the school week.

I did not manage to finish the actual mechanical part of the assembly in time for the run (it's missing the all-important camera mount) but managed to finish all of the gears, mounts, wiring, soldering, OpenScad and Arduino/XBee coding necessary to get the thing moving via remote with stepper acceleration, control smoothing and a wicked-fast 20ms communication delay (by comparison, most first-person shooters operate with a 80-200ms latency). So 1,199 finished lines of code later, I have to admit it's still a work in progress (at least the mechanical camera mounts are) but I'm hoping, at the very least, the XBee and Arduino code involved in the controller and receiver sketches might help out anybody who needs to have super-fast, reliable wireless data communication with error checking and ACK packets using an XBee in API mode.

I'll update this Thingiverse posting with a video of the whole contraption moving under its own power sometime later today once I've had a chance to trim and upload the video.

The latest current source files for the Arduino and XBee powered electronics and the parametric gears can be found at their respective Github repositories here: (for the Arduino code)
github.com/xtremd/XbeeRemoteCameraRig
and here: (for the OpenScad code)
github.com/xtremd/Parametric-Openscad-Tripod-Mount

If anyone has any questions about my code or my tripod, just drop me a quick comment below and I'm sure a bunch of people (including me) will be able to help you out.

-XtremD

Inspired by but not derived from thingiverse.com/thing:15602 and thingiverse.com/thing:11017

A Prusa Y Motor Bracket that allows the belt to sit close to the motor face like the X motor, changing forces on the bracket from torsion to compression.

!WARNING! Giant bridge! The entire motor face contacts a bridged area 43x43mm in size. if you haven't dialed in your bridge settings to be capable of 50mm bridges, don't print this until you have!
See my bridge torture test object

This is the T5 pully belt gear for 4mm shaft steppers. Please let me know how it fits your motors. I've only printed it on my prusa which may vary.

This project consists of placing a propulsion system for a robot by means of a DC motor and a propeller.
It consists of three parts:
Propeller of four wings that will be linked to the motor shaft.
Protective casing of the propeller for greater security, together with the support of the motor.
Support that will serve to replace the motor DC and unite the propeller with its case to the robot.
All the measures can be configured so they can adapt to the necessities of each project.

youtube.com/watch?v=9YIwYe39Zu8

Juan Miguel García Haro
Pablo Marín Plaza

Universidad Carlos III de Madrid
Departamento de sistemas y automática
Máster de Robótica Industrial

In order to improve the tool OOML (http://iearobotics.com/oomlwiki/doku.php), we built this motorboat from libraries OOML whose they are written in C++. The MOTORBOAT is developed from zero and it is not based on any model previously developed by other programmers. We only use the code .SCAD of a propeller, to build our propeller (http://www.thingiverse.com/thing:8688 ).

Here is a video of the MOTORBOAT (in spanish):
Pulleys:
youtu.be/dUqTDfMHCe8
Gears:
youtu.be/C185LOEoUI0

Test in water:
youtu.be/0xFm2y-97Ts

All code is written by QtCreator program, this program can work in parallel with OpenScan program order to view the process of developing of the different parts.

The MOTORBOAT was divided into three parts. The first part is the physical structure of the MOTORBOAT and is intended to float on water. The second part is based on mechanical system pulleys and belt and is intended to transmit power to the propeller. The third part is based on other mechanical system gears and also aims to transmit power to the propeller.

The gear code has been parameterized to function as a new library OOML.

To supply power to the mechanical system we used a motor DC that is activated or deactivated through a switch.

Finally, the attached codes are. "STL" files. It also includes a ".RAR" file which includes all the generated files (."CPP", ."SCAD", ."STL").

Additional things.
To assemble the physical structure of the motorboat, we need:
Waterproof adhesive.
2 flange to hold the motor.
To assemble the mechanical system based on pulleys and belts, we need:
2 M3x10mm screws.
10 M3 washer.
2 M3 nuts.
1 square section belt 80Øx2.2mm.
To assemble the mechanical system based on gears, we need:
2 M3x10mm screws.
2 M3x20mm screws.
2 M3 nuts.
14 M3 washer.

This is an experimental prototype enclosure for a miniature DC motor. It is designed to be used in harsh environments, however, due to no air circulation, the motor may get hot. I havent tested it for extended use or use in harsh environments yet.

The hole for the motor shaft will need to be drilled out to fit the shaft.

The cap was not designed to be removed once installed. Removing the cap may damage the case.

Mounting holes for two different mounting options are built in. A hole for the wires is also built in.

I hope someone finds it useful.

This is an experimental prototype enclosure for a miniature DC motor. It is designed to be used in harsh environments, however, due to no air circulation, the motor may get hot. I havent tested it for extended use or use in harsh environments yet.

The hole for the motor shaft will need to be drilled out to fit the shaft.

The cap was not designed to be removed once installed. Removing the cap may damage the case.

Mounting holes for two different mounting options are built in. A hole for the wires is also built in.

I hope someone finds it useful.

This is an early concept for a belt driven extruder. The extruder motor (E Motor) is moved from the X carriage and mounted at the x end. Force is transferred via a differential.

One of the goals for this design was to minimize barrier to entry. That is, I wanted to allow anyone to be able to implement this without having to to know how to write software/firmware or redesign the printer in a major way. As such, this design accomplishes the task mechanically. A similar approach could be accomplished via software pretty easily, and it would eliminate the need for the differential. However, with this design, users may be able to come up with the gear models and implement the design without having to wait for someone to work on the appropriate software changes.

The X assembly has two belts. One connects to the X carriage as a 'normal' X drive would. The second (E belt) connects to the hobbed bolt gear on the extruder. At the end of the X belt, where you'd normally have an idler/bearing, there is a pulley which connects to a differential.

In the images, orange represents idler/bearings and red represents pulleys/gears. Note that the X carriage is connected to the bottom of the X belt, while the extruder gear is connected to the top of the E belt. The images here are just a representation and are not designed to be functional. As such some things are not to scale and gears do not have teeth. Please take this with a grain of salt. This is being published just as an idea.

Imagine we want to move the X carriage but we do not want to extrude. The E motor holds stationary while the X motor rotates. This causes the differential's ring gear to be stationary and thus the X motion is transferred via the idler pinion gears into the E belt such that the E belt moves at exactly the same speed and opposite direction as the X belt. Since the X carriage is connected to the bottom of the X belt and the extruder gear is connected at the top of E belt, this means that both move in the same direction and the extruder gear does not rotate.

Imagine we want to extrude (rotate the extruder gear) but we do not want to move the X carriage. The X motor holds stationary while the E motor rotates. This causes the differential's ring gear to rotate. Since the X drive pinion gear is stationary, the ring gear's idler pinions cause the E belt to rotate.

Some benefits of the Meehl Drive system over other potential drive systems:
* X carriage is lighter and can be moved faster with less inertia
* No new software or firmware updates are necessary
* X rods can potentially be smaller since there is less weight and therefore less sag
* Less printer vibration and shaking

The extruder design is from thingiverse.com/thing:6713
The X carriage design is from thingiverse.com/thing:14530
Although, in both cases, almost any similar X carriage and gear driven extruder could be used.

Designed this bracket to combine four Stepper Motor Driver v3.3 together in One convenient plate. Perfect for custom mounting on your 3D Printer. Mounting hole are 1/4 inch. Perfect for a flush finish on your printer!

Nema 17 Motor mount drawn in Google Sketchup. Perfect base starting point with 42mm Width and Height. Included is the Google Sketchup File that can be used to modify this bracket for your custom project. Enjoy!

Nema 17 Motor mount drawn in Google Sketchup. Hidden hardware design allows for a clean setup. Use this Motor mount to Mount a Nema 17 Motor Horizontally with 1/4 holes. The motor i designed it for is 32mm width front to back. Counter Sunk holes for a clean stealth look, No wires showing! Enjoy :)

Nema 17 Motor mount drawn in Google Sketchup. Hidden hardware design allows for a clean setup. Use this Motor mount to Mount a Nema 17 Motor Facing down with 1/4 holes. The motor i designed it for is 32mm width front to back. Counter Sunk holes for a clean stealth look. Enjoy :)

Nema 17 Motor mount drawn in Google Sketchup. Hidden hardware design allows for a clean setup. Use this Motor mount to Mount a Nema 17 Motor inline with 1/4 holes. The motor i designed it for is 32mm width front to back. Hidden wires. Hidden Hardware. Super Stealth!

The youtube video here youtube.com/watch?v=DBnKPEnt9a4 shows how to add flats to motor shafts that do not yet have them.

Loosely based on the "Vise pad for holding 8mm threaded rod by ChatterComa" I created the part that helps you to grip the motor shaft properly in place so that you do not apply force to the motor inners.

V8 engine

This is a wobbler engine that I printed on my Reprap :)

a Wobbler engine has no power and is good for absolutely nothing (except the satisfaction of having made one) and is the most basic engine you can make I think

see it working here: youtu.be/yNW0m6YCkxA
and check out my other stuff at backyard-workshop.com

This part goes hand in hand with the Stepper Motor Support Hose Guide: thingiverse.com/thing:13981

With both parts it really seems to give the Prusa added support for the cabling for the X axis. I'm really happy with the way both of these parts work together to look after the wiring. Hope you find this helpful

Making a tricopter or duocopter (twincopter) or something that needs single-axis vectored thrust? Here's the solidworks and STL files for the redesigned mount for the smaller hexTronik 20gram motors I'm using.

These are the motors I've got:
hobbyking.com/hobbyking/store/__8478__hexTronik_20gram_Brushless_Outrunner_2300kv.html

Everything is parameterized in solidworks for easy modification, but this should fit mostly any motor of this size.

This coupling has been designed using OOML ( iearobotics.com/oomlwiki/doku.php ). When attaching the Dynamixel and the Hokuyo, you can easily convert a 2D range finder into a 3D one.

Here is a small video (in spanish): youtube.com/watch?v=2eFtwoCO7ZE

Another video of a very simillar design (printed with a commercial 3Dprinter) can be found here: youtube.com/watch?v=n1OJ9bcBAIg

The code to control the devices can be found in www.mrgroup.es but it is not so clear. I will update it soon. It will probably be easier to contact me if you need the code.

3 files are attached: a cpp (OOML code), a scad (generated by the OOML code) and a stl (to print).