Hello World!
For this is my first post here in CNC zone forum I first would like to introduce myself ...
My name is Hansjoerg (34) and I'm from Southern Germany. The origin of my wish to get a CNC is based on my RC aricraft modelling hobby. Until now I contructed every single plane on the CAD ( Rhino ) but printed out the parts and cut them out manually... - This to change, I decided to build myself a CNC mill...
For I'm rather new to this forum ( as I already told) - the only channel with DIY content was this one ... I surely know, that it is about wooden mills and mine is mainly Aluminium ?? (wrong) ??.. so Admin, - if there is a better place to move this thread to, please feel free to move it.
Now, here is some specification about my project...
Base :
760mmx1100mm Aluminium ladderframe with 5 steps 50mmx100mm lead bars and 50mmx50mm step bars all made from high duty Aluminium extrudes.
x axis:
2x 20mm ball/ rail guides with 4 long sliders ( low preload) and spindle bridges
Spindle:
2x Ballscrews C5 16x5mm DIN ~ 23um accumulated axial thread tolerances on load with double nut for high loads (3% preload)
Protal side plates:
Aluminium plates with fittings for ball bearings and y axis bars 50x50 hd Aluminium extrudes.
y axis:
2x 20mm ball/ rail guides with 4 short sliders ( low preload)
1x Ballscrews C5 16x5mm DIN~ 23um accumulated axial thread tolerances on load with single nut and selected ball set axial tolerances on change <5um
z axis:
2x 15mm ball/ rail guides with 4 short sliders ( low preload)
1x Ballscrews C5 16x5mm DIN~ 23um accumulated axial thread tolerances on load with single nut and selected ball set axial tolerances on change <5um
Motors:
X Axis 2x 1,9Nm Stepper
y Axis 1x 1,2 Nm Stepper
Z Axis 1x 1,2 Nm Stepper with ~ 1:2,5 belt transmission
Controller:
4x 6 Ampere microstep amps with parallel interace PCB
Software still not choosen ... actual option to start with the trials of Meshcam and Mach ... future is open.....
Here is the proposal ( May07):
"The Bucket full of Parts"