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Any delay would likely be due to any backlog and/or part shortages . . . I have ordered parts and filament from Folger, and they have never failed to pack and ship within a day.
- Tim
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tadawson
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Reprappers
If MS takes it, I'm out . . . . thet screw up and bastardize everything they touch . . .
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tadawson
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Reprappers
Different speed, such that it does not stress the motor to the point of skipping?
You can look at the gcode for a given layer, and see if the two files are going to the same X/Y position to be certain, but first I would compare the speed settings between the two slicers, especially the nom-print moves, which tend to be the fastest with the highest accelerations.
- Tim
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tadawson
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Reprappers
You are not clear . . . have you checked the end stops *ONE AT A TIME*? If not, while they all activate, they may be sensing on the wrong tower . . .
- Tim
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tadawson
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Delta Machines
Quotemmcginnis9272
Quotetadawson
I spent some time thinking about this, and now my head hurts . . . . steps/mm on a delta are on the tower drives, not actual X/Y/Z directions . . . so, the only direct relationship is when all three towers move together for Z movement, then you are 1:1 . . . for X and Y, the delta calculations are in the middle. So, if, say, your X print dimension is off, you can'
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tadawson
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Delta Machines
Are the thermocouples plugged in and working? Mine would read something like 345 degrees when not plugged, and trip the MAX_TEMP limit. as you are seeing. If you are testing without the heaters and thermocouples, you can temporarily increase the MAX_TEMP values to allow you to play with motion (just remember to put them back when you are done . . .
What temps do your bed and hot end read cold?
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tadawson
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Reprappers
Folger Tech *what*, exactly? Prusa or Kossel?
Typically, for skipping, clean/polish/align/pray over the bum axis to free it up, check driver voltages, and if all else looks OK, and the motors are not overheating, turn up the drive voltage until it quits skipping . . .
If it's a Kossel, lube the stuffing out of the rails, and work them. If still bad, ask for replacements - apparently, the rails
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tadawson
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Reprappers
I spent some time thinking about this, and now my head hurts . . . . steps/mm on a delta are on the tower drives, not actual X/Y/Z directions . . . so, the only direct relationship is when all three towers move together for Z movement, then you are 1:1 . . . for X and Y, the delta calculations are in the middle. So, if, say, your X print dimension is off, you can't simply 'do the math' and adjust
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tadawson
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Delta Machines
It's not the belt slipping on the pulley that you need to worry about, it's a motor skipping steps, which appears to be the case here. Make certain that the wonky axis moves freely, verify that the driver voltage is set correctly, and if both of those are OK and the motor on that axis is not too hot, consider upping the drive voltage on that axis.
- Tim
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tadawson
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Reprappers
QuoteKoenig
Quotetadawson
Folks say that, but using those values, my dimensions are very close, and any corrections I calculate would need to go in the opposite direction . . . . thus, I am not convinced that they are wrong . . .
- Tim
Several sources state that it should be 80 steps/mm with 20-tooth pulleys (EDIT: and 1/16 steppers).
Try googling "steps per mm 20 tooth pulleys" and se what y
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tadawson
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Delta Machines
So, with enable grounded, and direction seen to select correctly, you still only move one direction? To my mind, that pretty much determines that one side of the output bridge on the driver has a failed component. Do you have more than one of these driver cards?
(More detail . . .)
A typical driver output looks like thus (can't use the schemo for your card, since there is no pdf output on githu
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tadawson
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General
Folks say that, but using those values, my dimensions are very close, and any corrections I calculate would need to go in the opposite direction . . . . thus, I am not convinced that they are wrong . . .
- Tim
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tadawson
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Delta Machines
Disconnect enable from RAMPS, pull enable on driver to ground, and retest . . . You might also try manually selecting both direction and enable, and just taking the step signal from the RAMPS and see if you get the expected behaviour.
- Tim
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tadawson
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General
To duplicate my post from your redundant thread, check to be certain that direction and enable are not reversed. If they are, one direction will disable the driver and behave as you are seeing.
- Tim
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tadawson
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RAMPS Electronics
How much of the air from that duct hits the hot end? It should just cool the part, not the heater block . . . I can't tell, since the open side of the duct is not visible. You might also try slowing that fan down . . .
- Tim
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tadawson
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General
Looks like the three control leads are step, direction, and enable. Were direction and enable get reversed, this would be the exact kind of behaviour I would expect.
- Tim
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tadawson
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General
No need to power cycle - the upload already reset the Arduino. Just rehome and retest . . .
- Tim
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tadawson
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Delta Machines
Does the head fan have a duct, only allowing it to cool the head? If not, make one . . . then it shouldn't affect warmup time or the part . . .
- Tim
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tadawson
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General
Have you checked your endstops, and adjusted for zero at the towers? I wouldn't think that would affect only one side . . . . almost sounds like a whacked auto level that got hung in EEPROM.
- Tim
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tadawson
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Delta Machines
Well, it *IS* a *nix platform, so I would think it has more in common with Linux than Windows, but then again, with Apple's allergy to standards, who knows? Myself, I always try to stay current on tools, so try the 1.6.x stuff, debug, amnd only fall back if all else fails would be my plan . . .
- Tim
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tadawson
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Firmware - mainstream and related support
MAX or MIN? You can home at either, but the setting needs to match what the endstop is plugged in to.
If the version of Marlin from Folger still works, then methinks there is one more setting you missed - possibly the definition to home at min or max . . . If the old version works, we know the hardware and wiring is correct. And no settings changed that I can think of from th4 Folger shipped Mar
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tadawson
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Reprappers
And I'll offer to help as well, also having just built one of these. Frankly, I thought the build doc was pretty good, but not without the potential for an occasional head scratcher . . . follow it to the letter, and you will be at a decent starting point with a functional printer.
- Tim
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tadawson
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Reprappers
The problem only appears to affect the Windows Arduino kit - I have been on 1.6.3 forever, and now 1.6.4 on Linux (as have others) and everything works on all versions of Marlin . . .
- Tim
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tadawson
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Firmware - mainstream and related support
The red LEDs on the RAMPS card show FET channel activity, so will correspond with the drive to the heaters, and once things come up to temp, will flicker as the heaters are controlled.
When you try to run a print, how long have you waited? Not sure what slicer and control software you are running, but with Slic3r and Pronterface, you will see the bed heater come on first, and nothing else will h
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tadawson
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Reprappers
Change it back? :-) :-)
It's amazing what dropping a single critical character can do in C family languages . . . especially comment delimiters and semicolons . . .
Seriously though, it looks like you have stuff defined that wasn't supported in the RAMPs 1.2 pins.h file, and you are hearing about it. Have you tried my suggestion of undefining your LCD? All the errors appear to be centered aroun
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tadawson
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Firmware - mainstream and related support
If it works with the old firmware, it isn't a hardware problem, this is almost 100% certain to be a config error, especially when manual moves work on the new firmware as well . . .
- Tim
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tadawson
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Reprappers
And you matched all the settings in Configuration.h from your old firmware to the new version before you built and uploaded it, right? Specifically, accelerations and steps per mm?
- Tim
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tadawson
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Reprappers
Almost all those errors appear to be related to an LCD panel, which may not have been supported on the 1.2 . . . you might try undefining the LCD and seeing if that helps.
- Tim
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tadawson
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Firmware - mainstream and related support
And it's actually Configuration.h . . . in the top of the Marlin source tree, editable with the Arduino tool kit.
So look where you chose to put Marlin, or let the tool take you to it.
- Tim
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tadawson
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Reprappers
18 is still like lamp cord . . . . most of the stuff on these motors is 20 or 22, possibly smaller . . .
But correct, larger cant hurt function, just cost, space, and stiffness.
Most 40mm fans only draw about .07 amps, and could almost be run on hair . . .
- Tim
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tadawson
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General