8. Computer controlled machining

Group assignment:

  • test runout, alignment, speeds, feeds, and toolpaths for your machine

The members of the group:


Individual assignment:

​ make (design+mill+assemble) something big

Idea

I struggled a long time to generate an idea of individual assignment - make something big. Material was Oriented strand board (OSB). What something big could be? Useful? Yes, I hoped so. Could be furniture?

First the all I decided use Autodesk Fusion360, because with Fusion I was able to make CAD and CAM design.

Plan to workflow
  1. Research
  2. CAD design
  3. CAM design
  4. Milling
  5. Assembling
  6. Conclusion

Research

Oriented strand board (OSB)??

Group assignment

Our group tested accuracy of milling machine by measuring dimensions of test part and compare to designed dimensions.

Measuring

We used a Caliper and a Tape measure to measure dimensions of test part. These measure instruments were not calibrated.

We measured 22 different distances of test part

Measured dimensions 3, 5, 8, 9, 10, 11 and 12 are different from designed dimensions but rest of measured dimensions are excat with designed dimensions.

Conclusion of group assignment

Assumedly problem is inaccuracy of Inside small jaws (Caliper) not milling process. Hence milling process was accurate.

Individual assignment

Conclusion