I was wondering if anyone knew the grade of screws that were used in these SX3 mills or in the kits....what does the mounting setup look like? I am not so much concerned with speed as I am with accuracy and repeatability...do any of the owners have any numbers?

Thanks
Jason

Today I will be finishing my testing on our demo unit. Later this afternoon I will publish my findings here. Sorry for the delay, just wanted to make certain of my results.

Here is my findings thus far. I need to do some fine tuning on the Y and Z axis for backlash.

Spindle run-out = .0005" or less
Backlash on X axis = .0002"
Backlash on Y axis = .0011"
Backlash on Z axis = .004"
Repeatability = .0004"

All tests where conducted on a sampling of 10 tests per setup. A mean average was taken of the test data. Above figures are those averages.

These are also from a stock machine without adjustments.

Ball screws are a rolled type. Stainless steel. I'm trying to verify the grade number.

Syil America:

I tried to email you but havn't recieved a reply- I was hoping to get any manual information you have- I have a 4 axs X3 but I would like to hae whatever info I can to help me use it.

I was wondering if anyone knew the grade of screws that were used in these SX3 mills or in the kits....
They certainly look pretty.

I was surprised and dismayed at how soft they were when I had to remachine one screw end.

Interested to see what info SyilAmerica comes up with.

Hi All,

I just plunked down 5K for the 4 axis Syil CNC S-X3 mill with upgrades.
I'll take pics and post them when it arrives.

My dream machine! :)

Balls screws are a 420 Stainless Steel. Up to Rockwell Hardness 50HRC. Some of the first machines sold into the U.S. (before our time) was with a softer grade. One I'm not sure of.