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Support for the quite nice RAMPS Electronics. See also http://reprap.org/wiki/RAMPS.
Re: retraction settings not working right - 12 years ago
after some frustrated number changing I finally managed to get it working. part of my problem was increasing the acceleration in slic3r, maybe. I also switched to repetier firmware, thinking that would help, same problem. I lowered acceleration in firmware down to 400 and slic3r to less than 20, and at 40mm/s feedrate printing it still didn't work, but I tried slowing it down in repetier-host (40by sagi - RAMPS Electronics
Re: retraction settings not working right - 12 years ago
well maybe not... the retracton works fine on a small print but for a larger print with multiple retractions in a row it still bugs out and doesn't push the filament back out an equal amount, even adding some distance to the extra length on restart in slic3r didn't help.by sagi - RAMPS Electronics
Re: retraction settings not working right - 12 years ago
well I might have figured it out... I turned acceleration down to 1700 and it seemed to start retracting reliably, but when it goes to push it back out it would only go half way. turned it down to 1600 and it seems to be working reliably now. printing the ooze retraction test with 1mm retraction and it doesnt seem to be leaving any strands between the pieces.by sagi - RAMPS Electronics
Re: retraction settings not working right - 12 years ago
Thanks for the info. I think I have a different software version because mine is laid out differently, but I lowered acceleration down to 2000 and it still isn't retracting correctly. here are the settings i'm using now: #define DEFAULT_AXIS_STEPS_PER_UNIT {80,80.2,2285,900} // default steps per unit for ultimaker {78.7402,78.7402,200*8/3,760*1.1}920 #define DEFAULT_MAX_FEEDRATE {50by sagi - RAMPS Electronics
Re: retraction settings not working right - 12 years ago
thanks for the help, I'm lowering the settings but it is still acting weird. could you give me your rates for a reference?by sagi - RAMPS Electronics
retraction settings not working right - 12 years ago
I've been working on getting better prints out of my prusa mendel and everything seems fine but I can't seem to get the retraction to not leave a blob when it starts and stops. I'm running marlin, and I don't seem to see anything in the code that could conflict with the slic3r retraction settings. it does the same thing using pronterface or repetier host, when it tries to retract any amount i seby sagi - RAMPS Electronics
Re: y-axis motor only moves one direction - 12 years ago
after a few too many hours messing around with it and checking it with an ohmmeter I think the problem was my IR thermometer just wouldn't read it correctly. it seemed the thermistor was correct though.by sagi - RAMPS Electronics
Re: y-axis motor only moves one direction - 12 years ago
when you press the + or - buttons for movement, it only goes in one direction, even after stopping correctly at the endstop, it rams into it further if i press one of the direction buttons. thankfully i had the stop held on with a twist tie so it didn't do much damage. I ended up changing the pins for the y axis over to the second extruder spot, which fixed it. there must be something wrong withby sagi - RAMPS Electronics
y-axis motor only moves one direction - 12 years ago
I just finished assembling my prusa mendel and got all of the electronics wired up, and finally got pronterface to start moving some things around. I've gotten all 3 axises to find the home switch and stop, but for some reason the y motor keeps going in the same direction. I've swapped the motor and driver and neither seem to be the problem, I'm running out of ideas here. also the extruder temp iby sagi - RAMPS Electronics