CNC Shark Forum

OK Dan, I loaded up your program and progressed through the windows for your settings and calculations. It all seemed good until I got to the last window (7). Either you had the wrong post processor selected, or my program defaulted to the wrong one. So my question is: Which post processor did you s...

I'm curious. Would you be willing to post your .crv file? There might be some clues... Is this your first 3D carve? Have you done single sided 3D carves yet? How much experience have you had with the CNC? Back to the topic: Where are you setting your Z in the setup section of VCarve? To the table be...

Another thought: Does the bit return to the same Z zero position after the cut as when it started?

I can think of several things to check: 1. See if the material is shifting upwards during machining...see if the clamps are holding properly. It looks like you are using cam clamps. These can slip if the edges of the material are not gripping sufficiently. 2. Is the board warping as it is machined? ...

The only time I've had a similar situation was when the wires connected to the touch plate were broken. The connection would be intermittent. I located the break at the plate connection and fixed it. That cleared up the problem. If you haven't checked connections yet, that would be my first recommen...

Thank you for the update rjc.
Thank you too, Rando.
I think that you'll find that Rando's "guesses" are extremely accurate.
Bob

Thank you for your reply. This solution is the result of many others who have posted solutions to similar problems.
Your post will help support, and solve future challenges.
Bob

Add:
How far is the bit extended beyond the collet?
Is the collet properly tightened?
Are all bolts properly tightened on the router clamp, and on the gantry and the rest of the machine?
Are the hold down clamps on your material tight and positioned properly?
Bob

It sounds like you just need the cord unplugged from the large touch plate and plugged into the smaller plate.
Bob

I was talking about the .crv files used to draw the job, unless you're using Aspire to make 3D models, or if you're talking about rotary machining, then you would need someone with experience in those methods. However, if you are making 2D, or 2.5D drawings I could be more helpful. I hope someone wh...