Support and Dual Extruders - MakerBot Operators

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Message from discussion Support and Dual Extruders
Date: Wed, 11 Jan 2012 20:20:11 -0800 (PST)
From: ddurant <dduran...@gmail.com>
Reply-To: makerbot@googlegroups.com
To: makerbot@googlegroups.com
Message-ID: <28321001.35.1326342011541.JavaMail.geo-discussion-forums@vbyc22>
In-Reply-To: <a9b63a26-f13a-4a4c-b7b3-1ef4f27e6561@o4g2000pbc.googlegroups.com>
References: <0877f1b6-2d7e-4e49-9c0c-b597794a93f3@t30g2000vbx.googlegroups.com>
 <27076b16-e4b3-42d2-a671-444883546261@y10g2000vbn.googlegroups.com>
 <a9b63a26-f13a-4a4c-b7b3-1ef4f27e6561@o4g2000pbc.googlegroups.com>
Subject: Re: Support and Dual Extruders
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> 1) Running skeinforge with support turned on, and setting the support 
> material temperature below main material temperature 
> 2) in post-processing assigning the 'colder' material to a different 
> print-head. 
Skeinforge has supported 'support_start.gcode' and 'support_end.gcode' for 
a while now - it will insert the contents of those files before & after it 
writes support commands. It might be easier to put comments in there as 
commands to the post-processor rather than mess with the temperature. Seems 
like that'd be less likely to cause problems with people who actually do 
want different temps for different bits, as skeinforge will want to 
orbit on temperature changes.
 
It'd also be nice if gcode had 'official' (sic) support for setting tool 
offsets and stuff. That and replace G1 E (or A/B/etc) with G1 V with the 
firmware figuring out how to get a certain volume rather than being told 
'you need Xmm of filament.' Those two things (plus some gcodes to tell the 
firmware what size filament you have) would let people finally be able to 
share high-quality gcode and better enable different machines and extruder 
styles (like my favorite: the mythical screw-drive that takes pellets 
instead of filament)

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<DIV>&gt; 1) Running skeinforge with support turned on, and setting the support <BR>&gt; material temperature below main material temperature <BR>&gt; 2) in post-processing assigning the 'colder' material to a different <BR>&gt; print-head. <BR></DIV>
<DIV>Skeinforge has supported 'support_start.gcode' and 'support_end.gcode' for a while now - it will insert the contents of those files before &amp; after it writes support commands. It might be easier to put comments in there as commands to the post-processor rather than mess with the temperature. Seems like that'd be less likely to cause problems with people who actually do want different temps for different bits, as skeinforge will want to orbit&nbsp;on temperature changes.</DIV>
<DIV>&nbsp;</DIV>
<DIV>It'd also be nice if gcode had 'official' (sic) support for setting tool offsets and stuff. That and replace G1 E (or A/B/etc) with G1 V&nbsp;with the firmware figuring out how to get a certain volume rather than being told 'you need Xmm of filament.' Those two things (plus some gcodes to tell the firmware what size filament you have) would let people finally be able to share high-quality gcode and better enable different machines and extruder styles (like my favorite: the mythical screw-drive that takes pellets instead of filament)</DIV>
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