Hi, I´m learning about CNC machines and now I am with a school project, I need to build a toy from a solid block of acrylic. I already did the design in a CAD software and I'm almost done getting the code for the machine, but I can't find the best feeds and speeds to get a good finish in the less time posible (the time is important).
The solid block is 2 x 3 X 5 inches.
I also have another restrictions, I can't use more than 4000 rpm in the spindle, and I only have this small tool diameters 3,4,5,6,8 millimeters, and I can't do a lot of tests in the machine, every time I use the machine my "efficiency grade" goes down. The tools are some of 2 flutes but most of them are 4 flutes.
I already try some speed and feed that I calculate, probably bad, becaue I almost break the tool.
Where can I find this speeds?
Reading in this forum I found someone with a similar problem, he said that he will try a Feed rate of 600 with 1500 rpm in the spindle, but then he don't post how it went. His speeds are reasonable?
Edit: first time I use cut dephts of 4 mm, now I think I should use 1.5 or 1 mm
The solid block is 2 x 3 X 5 inches.
I also have another restrictions, I can't use more than 4000 rpm in the spindle, and I only have this small tool diameters 3,4,5,6,8 millimeters, and I can't do a lot of tests in the machine, every time I use the machine my "efficiency grade" goes down. The tools are some of 2 flutes but most of them are 4 flutes.
I already try some speed and feed that I calculate, probably bad, becaue I almost break the tool.
Where can I find this speeds?
Reading in this forum I found someone with a similar problem, he said that he will try a Feed rate of 600 with 1500 rpm in the spindle, but then he don't post how it went. His speeds are reasonable?
Edit: first time I use cut dephts of 4 mm, now I think I should use 1.5 or 1 mm