Newbie looking at 6040 (China CNC) for polypropylene 15mm sheet

[Snapper]

I wouldn't use carbide bits on a drill press, particularly not that small. Your chuck likely has a fair bit of runout and carbide will snap in it like a digestive biscuit.

[JOGARA]

I wouldn't use carbide bits on a drill press, particularly not that small. Your chuck likely has a fair bit of runout and carbide will snap in it like a digestive biscuit.

Good point.


Not having much luck today.
1 HSS and 1 Carbide down so far and I have only been in the shop for a couple hours -_-

Gives me an excuse to buy some more bits.
Grabbed a 1.2mm for my M1.6 tapped holes (probably swap for 0.3mm as M1.6 holes are meant to be tapped at 1.25mm not 1.2mm).
Also got a 2.5mm for my M3 tapped holes and a spot drill.

[JOGARA]

Not sure what is going on here.

I have not used the machine in a few days, like 5-7 days.
When I go to home all the axis the Z does not stop when it hits the end stop.

Forgot how I fixed it last time it did this about 1.5 weeks ago.



Also, sometimes when I set my part offsets and then tell it to go to the part's zero, the Z will go about 5-10mm below the set Z. I then tell it to go to zero again and it lifts Z to the correct height.

[edit]
Why is it also normally open? Would have thought NC would be safer?

[edit2]
Gone into diagnostics and all but the Z axis limit switches are working.
The switch its self is working so guessing cable problem.

[edit]
Yea it is cable..

[Snapper]

I have the same thing with the go to zero command, always goes to Z-5, I just don't use it and use g0 x0 y0 if I ever need to go there for any reason. Keep meaning to look in to it but always forget.