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8. Computer controlled machining

group assignment

  do your lab's safety training
  test runout, alignment, fixturing, speeds, feeds, materials, and toolpaths for your machine

individual assignment

  make (design+mill+assemble) something big (~meter-scale)
  extra credit: don't use fasteners or glue
  extra credit: include curved surfaces

Group assignment

Group assignment

Individual assignment

I did tutorial about design software (Rhinoceros) and whit my instructor
I was one chair-stair design. The model I got in internet but I did something changes for to do whit the CNC
Design for calculate of unions or encastre Before to do de design of proyect I needed calculat the unions:
1. I did de design in Rhinoceros Design_test

Files of the Test

  1. I prepare the machine and the Wood (la fijo a la base)
  2. I control all security for work self
  3. I charge the code dxf and put parameters.
  4. I place the design next to the X/Y coordinates
  5. I make a machining order: first the interior and then the exterior
  6. I do an air test
  7. I proceed to the machining
  8. The result

Result_test

  1. and I concluded that the correct was the first (60*18 ok)

Design of the proyect

  1. I did the design

Design_chair_stair

One problem
I made a first experience with the laser cutting machine to try first with a small prototype. I got wrong results and thanks to this first prototype I made the necessary changes

Prototype showed bad results:

prototype

prototype

FILES of the design chair

  1. I do the same steps before (step 2,3)
  2. I charge the code dxf and write the parameters

Design_dxf

FILES of the process of machining

  1. I place the design next to the X/Y coordinates
  2. I make a machining order: first the interior and then the exterior

Inside curves Interior

Interior_fixed

Outside curves and fixed Outside curves

Creato fillets Create_fillets

  1. Set the zero point
  2. I do an air test
  3. I proceed to the machining
  4. The results Results

  5. I assemble the parts Ensemble Ensemble Ensemble Ensemble Ensemble Ensemble

What I learned ?

I learned that in front of a project, before making the cuts or the printing or whatever, we must be sure that it will work. That is why it is good to create smaller prototypes and make changes based on the results.


Last update: July 9, 2022