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Messages - tbroland

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1
Ok I will certainly run them at 1/8. It doesnt take but a minute or so to change. Thanks again.

2
OK.I got off of work early and had some time to check some things out. I have been running all  3 axes at full step because I felt that I needed the full torque because my table has 69-1/2 inch long Y axis lead screw and the X has a 47 inch long screw. I have been running at full step since I first put this together and everything that I have ran has been fine except when I had time to try some v-carving projects, It always would cut above the wood after a small amount of time. So, I changed the driver board for Z to half step and ran a small v-carve toolpath and it did not miss a step. Worked great. So next I ran a larger v-carve toolpath(33 mins) and once again it worked great. I should have checked this a long time ago but  99 percent of the stuff I ran was just profile toolpaths and they were always perfect. I feel so stupid. Humility is a great way to learn things. Thanks to everyone who took the time to offer their expertise and advice.

3
The bit hasnt moved in the collet. Ran the driver test and it said system excellent. Pulse frequency read 24999. Time in Int=4.4 to 4.9, it fluctuates some. CPU speed= 2793.0000. PWM base = 5

4
I will check all of this and get this information. I am at work now so it may be tommorow before I can get this checked out. Thanks.

5
40 on velocity and 4 on acceleration. I dropped them down to 10 vel and .5 on accelerate and everything in between.

6
I adjusted the accel. and velocity in the motor tuning and I still had the problem of the z cutting too deep. I then put all settings back to where they were originally and ran another test and then it goes back to cutting above the wood. I said ok I will meet in the middle on the settings(accelerate and velocity and the feed and plunge in the tool setup) to see if I can find a combonation that will work. So far nothing has worked. It either cuts deeper and deeper or it cuts above the wood. I am not sure what to do next. Everything works great except when the v-carve toolpath is used. I will not give up until I get the v-carve toolpaths working because that is why I bought it. When I get this solved I will share what the problem and solution is. Thank you very much for taking the time to offer you advice and suggestions.

7
Hi. I have been using mach3 with v-carve pro since July '13 and have been very happy with mach3 and vectric so far. I have a home built router with a cut area of 36" on the x axis and 48 " on the y axis and 5" inch travel on the z. I work on cnc's that range from the late 70's up to some new cnc machines. I still have many ideas and projects to try but like everyone else,,,, limited time.

8
Ok thanks.I will  adjust the velocity and acceleration in Mach 3. I think I might have tried this with my x and y axes but I have not adjusted the z axis  while testing a vcarve toolpath. Thanks for the information. I will post the results.

9
I  reduced the z axis feed rate on the v-carve tool setup page and then ran a test. Now the z axis cuts deeper instead of gaining height. It progressively cuts deeper as the program continues to run. I checked the  tool path in Mach 3 and the place it was cutting to deep definitely should not have been that deep. I  was v-carving an image  of the 40th anv. Mustang emblem and the program started with the a  and was working around to the  rest of the letters and I noticed  it was cutting deeper with each letter. I let it go  for a few minutes  and finally had to stop it because it was too deep to continue. Any advice or suggestions?

10
I will try that. I am about to do a test on cutting an arc with the x and z moving simultaneous just to verify correct movements then I will try the reduced feeds test on the vcarve toolpaths. I am like everyone else. My time is limited and I have to  do testing spaced out over several days. Thanks for the advice though.

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