Good Afternoon. I am new to CNCZONE. Thanks for the people who created this site. I need help PLEASE!
Please forgive me for my bad English. I am making my own cnc machine for plasma and wood/aluminum milling. I will have an interchangeable work area on the table and a interchangeable plate on the Z axis. I have been surfing the net for materials for my Project, because where I live (São Jorge Island, Azores, Portugal. Population=9000) no one sells this type of materials and no one has a cnc machine on this Island. I have never seen a cnc machine, only by youtube. My Friends say am crazy for making something I have never seen. I am going to make my cnc 100cm by 130cm. I am going to use belt drive on both axis. I also want to use a ratio 6:1( 12 to 72 tooth) on my NEMA 23 stepper motors (x and y axis). The x axis going to be drive on both sides with belts. The Y axis gantry I am going to use a fixed belt. The Z axis I have a ball screw which will also have a 2:1 reduction.This will give me: X and Y step=0,05mm, Z step=0,0125mm (full step). I am thinking of using your HTD 5M-15mm belt and pulleys on all axis. I have the R-Tech P30C plasma cutter . I am thinking of buying a 2.2kw chinese water cooled spindle for milling.
Material I have bought by internet:
Fully supported 20mm rails and pillow blocks.( Marchante Dice)
300mm THK ball screw (jak8858 ebay)
400mm 20mm precision round rails (for Z axis) and pillow blocks ( Merchante Dice)
3 Axis TB6560 Driver Controller Board + 3 nema 23 (57BYGH56-401A) 263 oz.in. (first-supply ebay )
My questions are:
Would do you think of my configuration, what is bad?
What is better? 3mm or 5mm timing belts?
Should I use half steps? I heard that it is better? Less resonance?
Which is better steel or aluminum pulleys?
Thank you for your time. Please respond.
Paulo from Azores