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- Welds should be easily accessible: welding out of position is difficult and welding in tight corner is sometimes impossible.
- Aluminum is far more difficult to weld than steel
- Welding can distort the geometry of your part
Solidworks
Sketch Geometry
- PUT THE ORIGIN IN A USEFUL POSITION
- Try to use relations whenever possible. For example, if you want to put a hole in the middle of an object use center-lines and midpoint relations rather than dimensions.
- Don't do fillets or chamfers in sketches
Fasteners and Off the Self Parts
- We will be using metric fasteners whenever possible
- Do not use toolbox fasteners. Try to use fastener already in trunk whenever possible. Otherwise find a CAD model on McMaster and download the model. Make sure to delete the default custom fields and add the VendorNo field. Fasteners should also have "Y" set in the "IsFastener field"
- Try to spec Spaenaur fasteners whenever possible. If you want to use a fastener that Spaenaur does not sell, check with a Mech lead first.
- Make sure to suppress threads in fasterners.
- Save the fastener according to the naming convension if you are adding it to trunk. Update the drawing number registry accordingly.
In Context Mates
- In context mates should be used when two parts are propertly mated
- These mates can help make the models more dynamic
Fits
Press Fits
A good rule of thumb for a press fit diametral interference is 1/1000th of the diameter you are trying to fit. So if you have 10mm shaft,
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