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Thread: g-code for feed
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11-21-2014, 02:06 PM #1
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- Nov 2014
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g-code for feed
Hi.
I wounder what is the g-code for feed 1000mm of filament at once. My tube with the filament is 1000mm long and i want to feed the filament with g-code instead of doing it manual.
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11-21-2014, 04:05 PM #2
The letter "E" controls the extruder, so the code would be G1 E1000
But if you use only that, the extruder feed will go step-by-step, so you have to put in a feed rate (F).
5000 is a good number
So the code you want is G1 E1000 F5000
Old Man Emu
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11-22-2014, 05:07 PM #3
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- Nov 2014
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Thank you.
I did try that but it didn't work at first. The reason was that the printer had a heat limiter of 190C. So i needed to turn on the extruder even if just wanted to feed some filament. Then I was not allow to feed 1000 at once.
But after I find that out your code work great. Thanks.
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11-23-2014, 01:21 AM #4
Yes, it is a pain that you cannot work with your extruder unless it is at operating temperature.
Obviously there must some M code that will disable that heat limit.
Old Man Emu
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11-24-2014, 04:43 PM #5
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- Jan 2014
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M302 enables cold extrusion. E1000 is very long and would be picked up on the firmware as a dangerous length of extrusion and prevented (extruding 1m of filament at a time is generally seen as a bit much). Drop it down to E200. You can always issue the same command 5 times. F5000 is really, really, really fast. Drop it down to F500 and you'll have a chance to catch it if something goes wrong.
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