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, & 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
-start a new sketch in the .ipt file
-select all of the geometry in the .dwg
-Ctrl+C in the .dwg
-Ctrl+V in the .ipt
-click to place 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
-start a new sketch in the .ipt file
-select all of the geometry in the .dwg
-Ctrl+C in the .dwg
-Ctrl+V in the .ipt
-click to place 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
-start a new sketch in the .ipt file
-select all of the geometry in the .dwg
-Ctrl+C in the .dwg
-Ctrl+V in the .ipt
-click to place 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
 
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 
 
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

 Solenoid Inventor Model

This file contains a parts file model of this solenoid.
 

This model's dimensions 
may not be fully accurate. 


Please account for potential 
inaccuracies in your design.
 
 


 
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.

Note: this template is good for lasercamming. 3D printers usually print holes slightly small, so sizes will need to be adjusted. See here








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






Subpages (1): Gears
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Daniel Yang,
Nov 24, 2013, 2:06 PM
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Daniel Yang,
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GM9.zip
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Geared Motor.zip
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Griffin Brunner,
Nov 4, 2015, 2:15 PM
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