Repository for 3D Part Models, Drawings & Schematics

Discussions related to motors other than hub motors.
This includes R/C motors, botttom bracket, roller and geared drives.
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Miles   100 GW

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Repository for 3D Part Models, Drawings & Schematics

Post by Miles » Dec 11 2008 6:56am

Standard formats proposed (in addition to native format):

STEP AP 214 (ISO standard)
Adobe 3D PDF (de facto standard)
DXF or DWG (Megalodesk standard)




Free 2D CAD program
Free 3D MCAD program

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Miles   100 GW

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by Miles » Dec 11 2008 10:46am

Astro Flight 3210/8120 brushless motor:
Attachments
Astro Flight motor.jpg
Astro Flight motor.jpg (38.55 KiB) Viewed 13839 times
3210.pdf
(554.83 KiB) Downloaded 465 times
Astro Flight 3210 motor (STEP file).zip
(23.4 KiB) Downloaded 307 times
3210 motor (Alibre .stp file).zip
(142.48 KiB) Downloaded 209 times

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lepton   1 W

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by lepton » Dec 11 2008 11:22am

I'm a fan of posting as many file types as possible. Step files (.stp) are pretty good - their Solidworks and Alibre support both seem to consistently work well.
Last edited by lepton on Dec 18 2008 3:37pm, edited 1 time in total.

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Miles   100 GW

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by Miles » Dec 11 2008 11:37am

lepton wrote:I'm a fan of posting as many file types as possible
Me, too - just thought we should agree some common formats that everyone can access.

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by HAL9000v2.0 » Dec 17 2008 5:49pm

HXT / TURNIGY C80100-130 housing model.

Image
Attachments
HXT80-100 ProE.zip
(1.09 MiB) Downloaded 375 times
hxt80-100 STEP.zip
(115.31 KiB) Downloaded 469 times
turnigy80-100-PDF.pdf
(175.38 KiB) Downloaded 562 times

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Miles   100 GW

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2 speed retro-direct, belt or chain, gearbox design

Post by Miles » Dec 18 2008 5:16am

Schematic for 2 speed, belt or chain, retro-direct gearbox design
Ref: http://www.endless-sphere.com/forums/vi ... 79&start=0


Image
Attachments
Retro drive-train.pdf
(281.54 KiB) Downloaded 398 times

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lepton   1 W

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by lepton » Dec 18 2008 3:48pm

BMC 750 watt non Hub-Motor (based on personal measurements with a ruler, so the exact dimensions shouldn't be trusted)
BMC Motor.jpg
Picture
BMC Motor.jpg (47.09 KiB) Viewed 14269 times
Attachments
BMC Motor - Step File.zip
STEP AP 214 File
(89.93 KiB) Downloaded 193 times
BMC Motor - Solidworks File.zip
Solidworks 2009 slprt File
(22 Bytes) Downloaded 226 times
BMC Motor - 02.PDF
Adobe 3D PDF File
(76.2 KiB) Downloaded 310 times

Dirt-E-Dan   1 W

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by Dirt-E-Dan » Jan 29 2009 12:13am

I'm currently doing an independent study course at Appalachian State University in which I'm building an electric bike. I'm using that HXT 80-100b 130kv motor with some Li-Poly batteries. Since I'm doing this for a course, I need to make sure I document the whole process, so I'm trying to design the reduction on AutoCAD using the computers at my school.

If you guys could convert the drawings of the HXT motor to an AutoCAD file, I would really appreciate it! I tried to do it in the computer lab, but I couldn't get it to work. :( Those drawings look great!

Daniel
Daniel
rideFFR

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by HAL9000v2.0 » Jan 29 2009 3:20am

Sorry, I can't help you as I abandoned Auto CAD few years ago. I can do only 2D .dwg. Maybe Miles can do something...

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Miles   100 GW

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by Miles » Jan 29 2009 5:07am

Try this, Daniel.

I used: STEP>Rhino>DWG
Attachments

[The extension dwg has been deactivated and can no longer be displayed.]


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Re: Repository for 3D Part Models, Drawings & Schematics

Post by Dirt-E-Dan » Jan 31 2009 1:21pm

Thanks for the drawing! I got downloaded it, but the only discrepancy was that it displayed the motor as a 3d wireframe drawing; not a problem at all. I've been relearning AutoCAD, so it's been fun for me to download CAD files of pulleys as well. If you guys are interested, I can send you the reduction/motor box ("powerbox") when I'm finished designing it. Thanks for the help!

Daniel
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j3tch1u   10 kW

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by j3tch1u » Feb 25 2009 1:28am

does anyone have a model for a 16T freewheel?

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Miles   100 GW

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by Miles » Mar 27 2009 2:09pm

Electric Motorcycle Horn

Model kindly provided by RIVCO http://rivcoproducts.com/
Attachments
Electric motorcycle horn.jpg
Electric motorcycle horn.jpg (32.75 KiB) Viewed 12464 times
Electric motorcycle horn.zip
(204.15 KiB) Downloaded 157 times
Electric Motorcycle Horn.pdf
(675.29 KiB) Downloaded 235 times

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mclovin   100 W

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by mclovin » Apr 04 2009 4:34pm

Hi All,
I would also like to suggest that we add .iges and .stl to the list. These also are neutral file formats that are commonly used.

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by mclovin » Apr 05 2009 9:45pm

Here are some files for #25 chain. The number of teeth is in the file name. Let me know if you need anything specific (i.e. a particular number of teeth etc) I will see what I can do.

Image
Attachments
Roller Chain_#25_35T_12T_igs.zip
(556.38 KiB) Downloaded 270 times
Roller Chain_#25_35T_12T_sat.zip
(333.99 KiB) Downloaded 184 times
Roller Chain_#25_35T_12T_stp.zip
(339.36 KiB) Downloaded 181 times
Roller_Chain_#25_35T_12T.png
Roller_Chain_#25_35T_12T.png (96.92 KiB) Viewed 930 times
Last edited by mclovin on Apr 22 2009 7:47pm, edited 5 times in total.

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by HAL9000v2.0 » Apr 06 2009 5:40pm

New CA big display.

Image
Attachments
ca-big-display.zip
IGS file
(21.99 KiB) Downloaded 167 times
ca-big-display.prt.zip
prt file
(90.73 KiB) Downloaded 135 times

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by rscott77092 » Apr 19 2009 5:15pm

Dirt-E-Dan wrote: If you guys could convert the drawings of the HXT motor to an AutoCAD file, I would really appreciate it!
Daniel
Most professional CAD systems can convert a drawing to DXF which can almost always be imported to Autocad. Been there, done that.

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Miles   100 GW

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by Miles » Apr 19 2009 5:28pm

Not Alibre, unfortunately... 2D DXF only. Some older versions of SAT file will go into Autocad still, I think.

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by mclovin » May 31 2009 11:49pm

Let me know if you need a particular size and I'll see what I can do.

Image

Image

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Miles   100 GW

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by Miles » Jun 24 2009 9:03am

See here for discussion on MCAD software: http://www.endless-sphere.com/forums/vi ... 28&t=11154

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Bikemad   10 mW

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by Bikemad » Aug 23 2009 12:22pm

mclovin wrote:Here are some files for #25 chain. The number of teeth is in the file name. Let me know if you need anything specific (i.e. a particular number of teeth etc) I will see what I can do.

Image
Hi mclovin,

What package did you use to create this with?

I tried to do the same thing once with TurboCad, but the PC almost ground to a halt after half a dozen links!

Alan

Image
Last edited by Bikemad on Aug 23 2009 4:57pm, edited 1 time in total.

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by mclovin » Aug 23 2009 1:48pm

I used Inventor 2009. The links are modeled as a single part made to look like an assembly. You need anything in particular?

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by Bikemad » Aug 23 2009 5:30pm

mclovin wrote:I used Inventor 2009. The links are modeled as a single part made to look like an assembly. You need anything in particular?
I was just playing with TurboCad when I did the piece of chain, but eventually gave up because the processing was taking ages as I added more links.
It was originally done purely as an exercise just to see what I could do with TurboCad, but I never got as far as a chainwheel, rear sprockets and wheels etc. which was my original plan.

I managed to get as far as this:
Image
And then I gave up because I'd finally run out of patience!

I'll have to take a look at inventor 2009 when I get chance.

I don't need anything in particular, but thanks for asking.

Alan

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by amberwolf » Aug 26 2009 8:26am

Since you have a surface (and possibly a texture and raytracing) on that model, you might want to make sure that the object pieces have their inner (non visible) surfaces turned off (are not double-sided). I don't know TurboCad, but in Lightwave3D that is an option for each poly.

Also, make sure you reduce the number of polys as much as possible. You can make each one of the flat surfaces of each link (the two sides) as a single poly, if you didn't already do so. It's likely that it's made of several triangles by default, and that is expensive in rendering power.

Making sure you reduce the number of points can be important too, by ensuring that you weld together each part of an object so all the points at edges line up and are joined. For instance, the curved edges of the link plates can be a long series of rectangular or triangular polys, which may or may not line up with the points on the large flat sides of the plates. If they do line up and you weld them to make each coincident point pair (or set) a single point, then it can save rendering time (and prevent surfacing errors in case of bugs in shaders).

Reducing intersections of parts can help, too, wherever parts go thru another object and disappear. When the pins go in the plate, just cut them off right at the flat surface. Don't bore an actual hole in the plate poly, as it just adds more points (which you could eliminate by welding, though). The visual effect is identical either way. Don't use end polys on the roller cylinders. They'll never be seen, so they don't need to exist. Any other poly that will never be visible should be removed.

If you have an object like a chain link you are building in the object creator/modeller, you don't even need to create a whole link--you can create one outer plate and one pin at one end of the plate, then in the layout or scene builder just clone that and mirror it, flip it 180, and it is now a complete single link. Then just do the same for the inner plate and the roller. Link them all up and you can animate them if desired, once you set up the linkages in your animation editor (I don't really deal with animation much, so can't help there).

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by Bikemad » Aug 27 2009 6:24am

Thanks for all that information amberwolf, but I don't know how much of it will be relevant to TurboCad.

When I get some spare time I will have a play with it and see how many of your suggestions I can use.

Alan

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