Machsupport Forum
Mach Discussion => General Mach Discussion => Topic started by: jliggett on October 20, 2008, 01:52:29 PM
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I am using Corel X3, exporting as an .EPS, then using Cut 2D to generate G-Code out to Mach 3 running a Vortech router. in Corel, and Cut 2D, the files look clean, with minimal nodes.
However, when I run the machine, it cuts like crap, going around curves, (and sometimes straight lines), with a jerky motion, like it's starting and stopping hundreds of times. The number of lines in the G-Code is in the thousands for a relatively small part. I am sure that it is generating way too many lines. Does any body have an idea of how I can reduce the number of segments in the code to get a smooth cut? As soon as I can, I will post some pics and cut file for somebody to look at to hopefully help me from pulling anymore hair out(Tribal is not helping much) Any thing else I need to add, please let me know. Thanks, Jon from Austin
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Would this be of help to you? I think you need version 12 or above but I don't know a whole lot about Corel-
http://www.candcnc.com/DXFToolDetails.htm
Welcome to the forum-
Dave
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also check that you are in "Constant Velocity" under "General Logical Configuration".
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Bought the DXF tool a while ago, still cuts bad, Constant Velocity has been on, I really am getting to my wits end. I would like to post a cut file, along with the G-Code, and some pics of the edges I'm getting, but how do I post a file? I click on insert image, but it just inserts this ---->(http://). Can't find how to post an attatchment.
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When replying,look for the "Additional Options" link to the left of the reply box and click on it.
It'll reveal an attachment box to load your files. Name it something odd so it doesn't match anything else on this server or it will be kicked off.
Dave
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Here are some pics and files. Thanks!
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Here is the G-code
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JLIGGETT,
Your curves are actually made up of very short lines. I have attached what they look like in CAD.
You can tell this by the code / "small" xy moves in the gcode.
As stated by Zealous, if you use constant veloicity this should help the cutting, but idealy ,the curved sections should be one continous
arc to begin with.
Use a CAD program to generate the drawing and DXF it. I don't use Corel so don't know if there are any settings in that program which may help
when drawing it or exporting it. Others may have some suggestions on economical CAD programs or even free ones.
RICH
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This problem with Corel is a very common topic here. Here is a post that might be of interest.
http://www.machsupport.com/forum/index.php/topic,7132.0.html
From what I gather, DXFTool has pleased allot of users. In my personal opinion, $50.00 is better off being applied to a decent cad software.
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Hi, Jon
Try setting your X & Y Acceleration Values Higher in Motor tuning, This Value con often be higher than your assigned F speed setting.
Chip
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By the way.....that is a very nice looking shop there. Is it just for looks??? No sawdust, no metal chips, everything is white in color and shows no sign of dirt. Even the buffing wheels look new. The wall behind my buffer looks like a truck got stuck in a mud hole. Are these pictures from machinist heaven? For crying out loud, even the dustpan in the corner is clean!!! Honestly, I don't know if I would be completely overjoyed, or totally freaked out to work is such an environment.
This post should have a warning in the title... "Not Safe for Hood". If he sees that shop, it will most likely cause irreversible psychological damage.
I wish my shop looked 1/10th as good.
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Sam,
There are some companies that have very strict house keeping and safety rules. You only walk between the
yellow painted lines on the floor, a person actualy just cleans up the machinies the floor all day, violate the rules and you can get fired. When you walk in the shops you would think nothing is ever made there! There is a "zero" policy gole on
cuts or accidents.......on & on. You would be in culture shock to work there. Hats off to a nice clean, well dressed,
organized shop as shown in the pictures. And yes, your mandated / given a small time at the end of the day to leave things in order. You should see some of the third world country shops as you would never even enter into the place.
Chips and no shoes and no safety glasses!
From Safety RICH,
RICH
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This post should have a warning in the title... "Not Safe for Hood". If he sees that shop, it will most likely cause irreversible psychological damage.
No chance of me getting psychological damage from seeing that as I know if I was there the shop would have some semblance of home within 2 mins ;D
Hood
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I think I would feel more at home in Hood's shop. It more closely resembles mine. :)
The clean one looks more like a hospital room.......I HATE hospitals.
RC 8)
But then.....working in that environment, you would be more likely to NEED a hospital room. :D