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¶
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
- I prepare the machine and the Wood (la fijo a la base)
- I control all security for work self
- I charge the code dxf and put parameters.
- I place the design next to the X/Y coordinates
- I make a machining order: first the interior and then the exterior
- I do an air test
- I proceed to the machining
- The result
- and I concluded that the correct was the first (60*18 ok)
Design of the proyect¶
- I did the design
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:
- I do the same steps before (step 2,3)
- I charge the code dxf and write the parameters
FILES of the process of machining
- I place the design next to the X/Y coordinates
- I make a machining order: first the interior and then the exterior
Inside curves
Outside curves and fixed
Creato fillets
- Set the zero point
- I do an air test
- I proceed to the machining
-
The results
-
I assemble the parts
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.