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Printing issues ...
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This is a great idea Rich! Only last night I was trying to untangle at 750g roll of 1.75mm PLA after it tied a knot around itself! It would be great to be able to purchase filament and simply locate it on the printer, feed it into the extruder and away you go.
I’ve been using a company for a couple of years who supply the material in loose coils; in general I have no problems as I’ve made mysel
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strelly
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Printing
Just a quick update to my stuttering printing.
I've commented out the full graphics smart controller from Marlin and i'm currently printing via USB with no problems whatsoever. I guess i'll head to the reprap discount forums for some advice.
Also i've got my GoPro back form a friend so here is some bonus time lapse footage of a very boring cylinder!
by
strelly
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Delta Machines
For my Cherry Pi i have been using a granite chopping board from ebay here
The unpolished surface is the flattest. Using feeler gauges and a steel rule I guessed the flatness to be around 0.05mm. Cheap as chips too.
by
strelly
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Delta Machines
Hey Andy
I might try going down to 1/16 and run a print as see what happens. The stuttering seems to happen on all prints but its especially obvious on the spiral vases.
Also another point i forgot to mention is that the full graphics display is very unresponsive only when the printer is printing.. there definitely seems to be some sort of bottleneck.
Good point about the SD shield - that woul
by
strelly
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Delta Machines
Cheers for the reply Andy.
I'm using Rumba with DRV8825 drivers at 1/32 microstepping. It's printing from SD card direct from my full graphics LCD.
I've tried reducing the delta segments down to 100 and even 50 and it still does the same thing. I've tried a different SD card with no luck. i've tried dialing down the printing speed on the jog wheel too.
Its strange because when the xyz movement
by
strelly
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Delta Machines
Just been playing with some thin walled prints and ive noticed the printer is acting a bit strange. The end effector seems to slow down slightly every couple of seconds which causes a slightly bulged wall.
video
pictures
I've asked on the reprap IRC with no luck. I've spec'd the machine almost identically to Andy's one. Any idea mate?
Thanks,
Charlie
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strelly
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Delta Machines
I did see that one too but it relies too much on the nozzle tip being completely clean prior to calibration. I guess a simple wipe script would solve that problem.
I'm going to hold off auto bed leveling until i've got my print quality a bit better. One thing at a time!!
The great thing about this printer is how easy it is to modify. I had to take the hot end off yesterday (on my old printer th
by
strelly
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Delta Machines
I've been looking at auto leveling and its great you've incorporated it into the cherry pi. I'm printing out the new z-probe end effector as i type this!
I guess i need the clamp from this design?
Thanks,
Charlie
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strelly
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Delta Machines
It's up and running! Lots of calibration left to do but i couldn't resist printings out a few objects.
Seriously impressed by this design - very simple and easy to work with. Even with simple calibration this blows my old printer out of the water!!
First print video:
Thanks for all the help too Andy - you are a true open source reprapper!
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strelly
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Delta Machines
Andy,
I've been lucky enough to print out your design on my work's SLS printer. I've built up the frame and its starting to look good! I really like the design, it so simple and quick to put together.
I thought you'd get a kick out of seeing your printer in the wild (see attached)
Thanks again for answering my questions so far - i imagine there will be a few more before the build is done.
Che
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strelly
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Delta Machines
Hey Andy,
Could supply me with the delta dimensions you used in your configuration.h? (even better if you could post your configuration.h so i can have a look!)
• Center-to-center distance of the holes in the diagonal push rods. (i appreciate that my rods will differ slightly here)
• Horizontal offset from middle of printer to smooth rod center.
• Horizontal offset of the universal joints on th
by
strelly
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Delta Machines