CAD Library

he 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	0.100	0.140	0.140	0.170	0.170	0.190	0.190	0.210
	Standard	0.110	0.130	0.130	0.160	0.150	0.180	0.180	0.200
	High	0.100	0.120	0.130	0.160	0.160	0.190	0.170	0.200

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.

NEW: Rack and Pinion Creation Tutorial

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	Contest Table This is a f3d file 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. Note: You will need to give extra room between the pitch diameters. If you align the pitch diameters perfectly tangent, it will cause interference issues in the teeth. You can and should rotate and move gears to check proper placements.	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	Large 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	Large 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	Small 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	Small High Speed (Non-Geared) Motor Fusion360 Model This file contains a parts file model of this motor. It has been updated for Fall 2021 Quarter	This is an f3d file that can be downloaded and uploaded to fusion 360.
	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.
	Download	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

10 pitch gears.ipt

(616k)

Daniel Yang,

Nov 24, 2013, 2:06 PM

MAE3	Search this site