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Messages - Mike E

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General Mach Discussion / Noob with SLOOOWW 3D Carving Speeds- HELP!!
« on: November 18, 2008, 09:36:56 AM »
Hi Guys,
   This is my first post so I hope I get it right. I am the proud new owner of a DynaCNC 4 x 4 Plasma/router combo with Servos and Mach3 ver 1.90(old, supplied with machine).
My Problem: Extremely slow(I think anyway) 3D contouring speeds. I recently finished a mantel carving of a outdoor scene that was approx 6" x 42" and took the better part of 12 hours to carve. While 3d carving the blended rate was between 20 and 40 ipm. While rough cutting in x/y it would get up to programed speeds of around 300 ipm. Code was generated by Vectric's Cut 3D, approx. 500,000 lines of code
   The axises where set at X: vel 300ipm acel 30ipm,  y: vel 300ipm acel 30, z: vel 100ipm acel 30. The z is set to the max that the machine will go, x & y can supposedly run at almost 800 ipm acel 30.  CV was on, CV feedrate off. Servos use 500 line encoders, X&y use 1870 steps, Z uses 20,000 steps.
I talked to the machine builder and he didn't think those speeds were out of line.
   I hope there are some 3D router guys that can tell me if 20-40 ipm is normal or not. If I can't speed this up to between 70 and 100 ipm I won't be able to turn 3D carving into a profitable venture.
Pulse speed was aprox 35,400, but for whatever reason the "reduced" light was lit????
  I would have posted the XML file but appartently I can't add attachments, Yet
Any thoughts or comments would be greatly appreciated.

TIA
Mike

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