Quote Originally Posted by bigal999 View Post
My specifications for the machine.
1. To take up an area 100cm X 60cm
2. To be able to be used to cut hardwood and soft metals
3. To be as low cost as possible.
4. To be as exact as possible as I intend to do veneer and inlay work on it.
5. To have the machine finished by beginning of next year.
Materials I have already
3 NEMA 24 stepper motors 8 wire 3.4 NM
3 1605 ball screws with anti backlash nuts in the following sizes 1000mm 600mm & 300mm
20mm supported guide rails in the above sized with 12 Bock’s to fit them
Some 40x80mm aluminium profile
Some 10mm plate off cuts
Right Albert points 2 to 5 are not a problem and easily achieved. #1, however, can't happen if you have ball screws the same length, ( I presume these are already machined.?) The length of the total machine will be at least an extra 200mm and more like 1300mm x 850mm for a machine with 1000mm x 600mm cutting area.
So I've got a few questions.
#1 Do you have End bearings for the ball screws, if so what type.?
#2 What length are the supported rails.?
#3 What is the inductance of the motors. It should say on the datasheet for them and will be number with Mh on the end. If don't know just post a link to where you got them.
#4 How much 80x40 do you have.?
#5 Can you work with steel and weld.?