CamBam Problem

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13 Aug 2014 17:58 #49800 by bartwaw
CamBam Problem was created by bartwaw
Hi,
i've got problem with such program:

redexit.pl/upload/male.zip


There a lot of curves, installed 2.6.1 and and my machine don't works smooth.

Didn't tested on 2.5 but it looks like problem with trajectory planner.

Gcode generated on CamBam.

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13 Aug 2014 18:19 #49803 by BigJohnT
Replied by BigJohnT on topic CamBam Problem
Have you read the Important User Concepts yet?

JT
The following user(s) said Thank You: bartwaw

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15 Aug 2014 04:34 #49878 by bartwaw
Replied by bartwaw on topic CamBam Problem
Thanks, i've already read.
So do you suggest using trajectory planner ?

As you see, cambam generate many small curves from dxf.
When i've starded cutting was shaky, slow and for sure not smooth.

Cut Speed 350mm/min (about 6mm/s)
My acceleration in stepconf is set to 350mm2/s

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20 Aug 2014 04:32 #50076 by bartwaw
Replied by bartwaw on topic CamBam Problem
Hi, problem almost solved.
Used G64 P0.01 and it's way much more smooth.

Will w8 for new release with new trajectory planner.

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20 Aug 2014 04:46 #50078 by BigJohnT
Replied by BigJohnT on topic CamBam Problem

bartwaw wrote: Thanks, i've already read.
So do you suggest using trajectory planner ?

As you see, cambam generate many small curves from dxf.
When i've starded cutting was shaky, slow and for sure not smooth.

Cut Speed 350mm/min (about 6mm/s)
My acceleration in stepconf is set to 350mm2/s


Typical acceleration values are 10 - 20 times maximum velocity.

JT

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20 Aug 2014 19:03 #50094 by andypugh
Replied by andypugh on topic CamBam Problem
Look at arc-fitting in CamBam, it will try to convert short line segment curves to arcs, which will help.
www.cambam.info/doc/dw/0.9.8/cad/EditPolyline.htm

There is a similar option in the 3D profiling operations:
www.cambam.info/doc/plus/cam/3DProfile.htm

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