X axis: 550mm

Y axis: 650mm

Z axis: 220mm

Clearance below the gantry (with a 20mm thick table): 270mm

Spindle: Teknomotor 2kW, 24000rpm, ER25 collets

Control: EdingCNC 720 Ethernet controler, JMC closed loop steppers

Ballscrews: 16x5mm Isel

Linear guides: 20mm HIWIN with preload

I choose a cnc router as my main cnc milling machine since they offer a large work envelope and a fast spindle on a small footprint, and I usually don’t need the rigidity of a vertical machining center.

The spindle was chosen because there is also a manual toolchange spindle with the same frame size and motor data that uses HSK tooling and can act as a drop-in replacement.

This is my general layout on the machine – Two Garant Xtric self-centering vises in front that always stay on the machine. Tool length probe on the back left corner and either a three-jaw chuck or a magnet chuck on the right rear corner of the table. This gives me a lot of flexibility, and if needed the whole table is cleared in short order to do plate work.

The machine during construction without the enclosure:

• The original ballscrews that came with the machine - despite beeing adjustable for backlash - always have about 0,02-0.04mm backlash.
• The EddingCNC 720 CNC Controller starts to studder when running faster 3d toolpaths.

Sorotec - Alu-Line https://www.sorotec.de/shop/CNC-Mills/Alu-Line-Mills/