Looking for help from Jazzcnc.!!

[JAZZCNC]

Hi There
Tool is tight in collet so I have ruled that out, this is happening everytime I have tried a project be it a photo vcarve or other 3d job. It was Dean who built the machine so thought he might know haha.
Gcode calling for z drops? Not sure how to check code for that sorry.
Cheers

Well I was about to say if it's not a mechanical issue then it could be a step edge issue but if it's one my machines and no one else as messed with settings in the control software then it won't be that as we check every machine for this by doing a bounce test.!

If you want to check this then it's very easy. Zero the Z axis and put a reference mark on it so can check it comes back to zero. Next write some gcode with a few 100 short moves, something like this:

G0 z-10
z-5
z-10
z-5
z-10
copy and paste untill got 200+ lines
ending with
z0
m30

If all correct then it should come back to the Reference mark. If not then go into Ports n pins / Motor outputs and change the Step Low active to the opposite of what's it's set at now. So if Ticked make it a X.
Then Zero and mark again and run code again, this time it should come back to mark.

But before doing all this check for loose pulleys or belts as often it's a mechanical issue which causes it.

Which machine is it.? I don't remember selling one to anyone called Billy.?

[Bopper1968]

Will Try that Dean.
I got it from Richard and you have helped me a few times. I will be on the look out for a larger machine as discussed with you 3 months ago.
Cheers
Billy

[JAZZCNC]

Will Try that Dean.
I got it from Richard and you have helped me a few times.

Got you now Billy, should have twigged to be honest but the Bathgate on your location thru me a little.

Give that a try because you changed the PC didn't you.? Can't remember if you did a fresh install of Mach3 or not.?

But check the pulleys first as these could have come loose and be slipping or worn even, the machine is nearly 4 yr old now and I bet they haven't been checked or adjusted since it was built.?

I will be on the look out for a larger machine as discussed with you 3 months ago.
Cheers
Billy

I've just recieved shipment of components for second batch of small and medium sized Routers we are selling/building and among them are parts for 2 x 8x4 machines so when ready I'll give you a shout, unless someone snaps them up before we get chance to build them.!