Greetings gentleman,
Here I would like to post my new welded construction 3 axis cnc router design.
X axis : 3.000 mm
Y axis : 2.200 mm
Z axis : 600 mm
It is now on design stage.
Material to be machined will be marble and carbon steels.
First post will be about Bridge - Saddle - Ram Design.
At first i started with one linear rail on each side of bridge (X axis) and one ball screw.
Afterwards I increased the linear rails on each side to 2 in second and thirth designs.
Difference between second and thirth design is,linear carriage mounted bridge supports on each side is 300 mm for second 200 mm for thirth.
Center distances of linear carriages is 170 mm for both second and thirth design.
Total 3 designs. I would like to hear what is your choosing among 3.
Linear rails are roller bearing type for higher load capacity.
Linear guide rail Size : 35 mm
Quantity on right side : 2
Quantitiy on left side : 2
Ball screw size : 40x8 mm
For Y axis 3 linear guides . One of the linear guide rail is located on top with a different direction.
This will improve the strength of the bridge %20 higher according to studies.
Linear guid rail size : 35 mm.
Ball screw size : 32x5 mm
For Z axis; there are 4 linear guide rails. 2 at rear 2 at sides.
Linear guide rail size : 28 mm
Ball Screw Size : 32x4 mm (may be this size will get smaller)
Mass :
Ram : 240 kg Saddle : 240 kg Bridge : 1.200 kg Bed Frame : 4.800 kg
Y and Z axiss will have 1 kW servo motor - 3000 rpm drive, directly assembled to ball screw via coupling.
X axiss will have 2 piece of 1 kW servo motor directly assembled to ball screw.