Setting up Cartesian Printer.
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Lykle
Unfortunately not Deckingman has that honour (I'll him admit to how much lol)
AS for multi extruders they have supported them for ages just not the easiest thing to get your head arround the main issue here is the Firmware Retraction that is essential for mixing hotends such as the Diamond?
Doug
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Lykle
Unfortunately not Deckingman has that honour (I'll him admit to how much lol)
Doug
I was born in year of our present queen's coronation.
Ian.
P.S. If you bothered to check when that was, you should be ashamed of yourself for not having anything better to do.
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I know when it was Ian but Lykle is a dutchman in Cyprus LOL. and for his benefit it was 1953.
Doug
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Perhaps we should start a club for Over 60's 3D printing enthusiasts? I'd be eligible too!
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Well you would have to wait a few months till I'm Eligible David (Mar 2017 for me).
Doug
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OMG - old farts club!
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Perhaps we should start a club for Over 60's 3D printing enthusiasts? I'd be eligible too!
Good idea. Will that mean concessions get a discount on Duet products?
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Steady on….I'm 47...which my sons assure me qualifies my entry into any old farts clubs.
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Steady on….I'm 47...which my sons assure me qualifies my entry into any old farts clubs.
Nah, your just a young slip of a lad.
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Still think we should push for an Age Concession Ian? (Very tongue in cheek LOL)
Doug
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So I'm trying to dial in my extrusion properly.
I've done the 100mm extrusion and am getting a constant and repeatable 120steps/mm for my extruder motor. Quite confident that is set correctly.
My understanding is that once that is done, I need to measure the diameter and work out my extrusion multiplier for each different type of filament I use, and enter the value into my slicer (S3D in this case).
I've entered the filament diameter (1.714mm, averaged over 5 points) and printed a single walled hollow test cube in 0.1mm layer height to measure the real wall thickness, which was set on manual 0.48mm.
Came out very nice, but is 0.55mm thick.
Is that excessive? How do I calculate my extrusion multiplier setting? It's set a 1.0 at the moment.
If I divide the difference (0.07mm) into 0.48, I get 6.86.
So do I just set my multiplier at 0.9314 and try it again?
Does this setting work over all layer heights?
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I don't bother measuring the filament. I just put 1.75mm and extrusion multiplier 1.0 into the slicer, do a test print, and adjust the extrusion factor in the slider on the web interface to get good top solid infill. Then I make a note of the extrusion percentage shown in the slider, and use that value in future for that roll of filament. Ignore the single-wall thickness, it isn't a good test.
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I don't bother measuring the filament. I just put 1.75mm and extrusion multiplier 1.0 into the slicer, do a test print, and adjust the extrusion factor in the slider on the web interface to get good top solid infill. Then I make a note of the extrusion percentage shown in the slider, and use that value in future for that roll of filament. Ignore the single-wall thickness, it isn't a good test.
So I tried this and got these results.
I did still have my own filament diameter entered, forgot to reset it to 1.75mm, but used the extrusion bar on the DWC to make adjustments on the fly.
Percentages are written on them, which do you all like?
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Personally, not terribly keen on any of them. Just for the hell of it, try dropping the extrusion in 5% increments until you get obvious under extrusion and see how the finish looks. This is the subject of another thread I've started but for some as yet unexplained reason, I'm getting best results using 70% extrusion with everything calibrated and triple checked. (Yeh, weird I know).
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Personally, not terribly keen on any of them. Just for the hell of it, try dropping the extrusion in 5% increments until you get obvious under extrusion and see how the finish looks. This is the subject of another thread I've started but for some as yet unexplained reason, I'm getting best results using 70% extrusion with everything calibrated and triple checked. (Yeh, weird I know).
So these are all over extruded?? Definitely don't want to go higher than 100%?
Funnily enough the ABS setting was definitely under extruded at 90%
I probably was going a bit soft on the increments at 2% change per time, I'll try it a 5% changes.
Your end of print script worked nicely by the way, cheers for that.
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It may be OK - just try what I suggested for the hell of it - it worked for me but nobody has as yet come up with an explanation as to why I need to run like this..
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For info, here is what I get https://drive.google.com/drive/folders/0B_MwtHtQR_ZveVpCazlzbjRsQlk?usp=sharing with extrusion at 70%.
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I'll take my extrusion multiplier results over to Deckingham's post, because I'm getting similar results.
Regarding ending script, this is working well for me, bearing in mind I home all axis' in the start script:
G90
G1 Z175 F360
G90
G1 X5 Y190 F800
M104 S0 ; turn off extruder
M140 S0 ; turn off bed
M84 ; disable motorsI'd just like to shut down the print fans on completion as they're pretty noisy.
The heat break fan shut's down when the extruder temp drops below 45 degC, and I'd like to keep it that way.
Could someone please help me out with a line of script to add to that that will shut down the slicer controlled print fan?
**I've gone with "M106 P0 S0 ; turn off print fans", please correct me if I'm wrong.
