CAD Library

The following are a set of downloadable CAD files for student use. All AutoCAD files are in 2000 dxf format. If the download link fails, all files can be downloaded from links at the bottom of the page.

Bolt tap holes and clearance holes for Metric and English screws are posted in the
the Little Machine Shop webpage .

Table of diameter of bolt holes for use with the Lasercamm:

 Bolt Tapped Hole Diameter (in)
 Clearance Hole Diameter (in)
 
4-40


 0.076 in.

 0.115 in.
 
6-32


 0.093 in.

 0.141 in.
 
8-32


 0.123 in.

 0.167 in.
 
10-32


 0.146 in.

 0.192 in.
   

 Shaft Size

 
Press Fit
 
Sliding Fit
 

1/4 '' shaft
 
0.230

then use 0.249 reamer


0.230

then use 0.251 reamer



Table Diameter of 3D printed holes:

Hole diameter in inches

4-40

6-32

8-32

10-32

3D Printer

Resolution

Tap

Clear

Tap

Clear

Tap

Clear

Tap

Clear

Makerbot

Low

0.1000.1400.1400.1700.1700.1900.1900.210

Standard

0.1100.1300.1300.160

0.150

0.180

0.1800.200

High

0.1000.1200.1300.1600.1600.1900.1700.200


More information on hole sizes can be found here.

Motor Mounting Instructions:

For detailed instructions on how to mount MAE3 motors, see the MAE3 motor mounting page.


Note: For inventor parts files, google sites tries to use Microsoft Word as the default program. To correct this, click "save" instead of "open" in the download prompt box, and your computer should recognize the Inventor file type and change to the correct default program. 

 Image Preview
Download File
 Description Tips, Tricks, and Background
 

 Download
  Inventor Contest Table

This is a zip folder containing a complete CAD model of the playing field for this quarter's contest.
Use this model for your robot animations. Note the files will load better if you extract the whole folder before you load it.




Inventor:
dwg Download

AutoCAD:
dxf Download
 


Gears


This is a zip file containing all of the pre-drawn gear files for various pitch sizes.
TO USE IN INVENTOR:
-open .dwg file in inventor
-Start a separate, brand new .ipt file
-select all of the geometry in the .dwg
-Ctrl+V in the .dwg
-Cntrl+P in the .ipt

For more background on gears, CLICK HERE.

The most common gear sizes for MAE3 are 10, 12 and 16 pitch gears





Inventor:
dwg Download

AutoCAD:
dxf Download

 
Timing Belt Pulleys

This is file contains various pulleys for use with the robot kit timing belts.
TO USE IN INVENTOR:
-open .dwg file in inventor
-Start a separate, brand new .ipt file
-select all of the geometry in the .dwg
-Ctrl+V in the .dwg
-Cntrl+P in the .ipt 

For more background on timing belts, CLICK HERE.


For more information on other power transmission
systems, CLICK HERE.


 



Inventor:
dwg Download

AutoCAD:
dxf Download


Gear Racks



This is file contains all the rack templates for every gear set and instructions for use.
TO USE IN INVENTOR:
-open .dwg file in inventor
-Start a separate, brand new .ipt file
-select all of the geometry in the .dwg
-Ctrl+V in the .dwg
-Cntrl+P in the .ipt
 
Image file does not display everything in file.

Recommend reading gear background above, and consider the linear slider problem.
 



Download

High Speed (Non-Geared) Motor Mount

Template


This file contains the template for mounting this motor.

Please read THIS page on mounting motors using Lasercamm parts. 






Download

 

High Speed (Non-Geared) Motor Inventor Model


This file contains a parts file model of this motor.




This is a simple parts file that can be downloaded and placed directly in an assembly.
 




Download
 

Updated Spring 2013 Geared Motor Inventor Model



This file contains a parts file model of this motor



Some information on the dimensions of the current geared motor can be found at THIS LINK.





Download 
 
Updated Spring 2013 Geared Motor Inventor Model


This file contains a parts file model of this motor




Some information on the dimensions of the current geared motor can be found at THIS LINK.
 

 


 
Updated Spring 2013 Geared Motor Mount Template

This file contains motor hole mounts for mounting on the shaft of the geared motors.
 
Please read THIS page on mounting motors using Lasercamm parts.

NEVER press fit onto a motor shaft.
 






Download




Inventor Inch Template


This file contains a drawing file (.idw) template with inches as the set unit.
 




Use this template for your Inventor CAD assignments
 




Download
 



Inventor Metric Template


This file contains a drawing file (.idw) template with inches as the set unit.
 


Use this template for your Inventor CAD assignments






ĉ
Daniel Yang,
Nov 24, 2013, 2:06 PM
ĉ
Daniel Yang,
Nov 24, 2013, 2:07 PM
ĉ
Daniel Yang,
Nov 24, 2013, 2:07 PM
ĉ
Daniel Yang,
Nov 24, 2013, 2:05 PM
ĉ
Daniel Yang,
Nov 24, 2013, 2:06 PM
ċ
Contest Table.zip
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ċ
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ċ
F2013 Playing Field.zip
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ċ
Fall 2012 Playing Field.zip
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GM2.zip
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GM9.zip
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Geared Motor.zip
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Gears.zip
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