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I know that in most slicers, if you put custom gcode in for temp, it will override what the slicer tries to send otherwise, but that in no way should have prevented the manual commands from causing the hearters to turn on, unless Repetier is doing some really odd stuff . . .
What, if I may pry, did you need to add or remove from the custom G code?
- Tim
by
tadawson
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General
Nope, it's a static setting that does not even require a motor to be connected. Look at the Pololu schematic - it's a pot from logic power to ground, with the wiper providing the VRef to the chip. Nothing in the circuit onthe output side whatsover.
They were likely showing the measurements of the output to show how it tracked, but that is not necessary.
- Tim
by
tadawson
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RAMPS Electronics
If I hear you correctly, that would be 353 ohms, where it should be closer to 2 (yes, *two*) . . . Do you have a scale that is 200 or something along that line? It should read on your lowest scale, and if not your bed is either damaged, or mis-wired.
- Tim
by
tadawson
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Prusa i3 and variants
You need to make sure that your radius, probable radius, and probe offsets are set correctly *and* correctly signed. There is also a minimum spacing between points (10? I don't recall for certain . . . ) so if you ask for too many points to probe, it chokes . . . (I could not get more than setting 5 or 6 to work).
Myself, I found a good manual calibration worked as well or better, and was far le
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tadawson
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Delta Machines
Do you have a multimeter? Read the resistance between the heat bed leads . . . it'll tell you instantly if it is good or not.
- Tim
by
tadawson
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Prusa i3 and variants
You don't need to move the motor at all to set VRef . . . just a voltmeter. Heck, you don't even need 12v power - it is derived from logic power. Simply meter from the pot wiper to ground . . .
VRef is a static reference voltage used by the driver chip to compare against the voltage developed across the sense resistors. It is *NOT* derived from actual motor current . . .
- Tim
by
tadawson
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RAMPS Electronics
Use M119 to read your endstop status, and close them one at a time with your finger and verify that they all behave as expected - IE only showing 'triggered' when pressed.
And if you got Folgers endstop boards, the request to check pins won't be possible . . . since the switches are hard attached to the PCB . . . but the good new is that you can't get them wrong, they are built one way!
- Tim
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tadawson
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Reprappers
Thanks for the image, and sorry for being bitchy . . . My motors have heatsinks glued to the endcaps (one time thermal adhesive pads), and as you noted, no marking on the extruder motor, so I assumed that was the case. My question to Folger was 'are the motors in my kit the ones on your web page' (which are rated .4A/12V, as I am certain you noted), so not really much to duck, but they still pret
by
tadawson
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Delta Machines
No, I just don't tend to instantly discredit manufacturer documentation. And it wasn't an attack - you *DID* consistently write ".5", which *DID* throw off my response . . .
And in any case, the math was always right, the only question was one of the *VARIABLES* being used . . . not to mention your having totally and completely ignored the physical evidence offered.
- Tim
by
tadawson
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Delta Machines
FYI, more work to do, but regarding my LCD issue (12864 Graphic Smart Controller), I have done some more testing . . .
Since the Due and the Mega have the same pinouts to the RAMPS (well, mostly . . . the LCD stuff does not change between them), I put a Mega on my RAMPS-FD (running 1.0.3-dev) to verify LCD function, and that failed. Apparently the pullup resistors on the adapter card doing th
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tadawson
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Firmware - experimental, borrowed, and future
Yes, the 5v comes from the Arduino . . . So, two things you can do:
1) Remove whatever load on your RAMPS is dragging it down - servos, LCD, etc.
2) Add a regulator
3) A combination of the above.
A lot of folks describe the regulator on the Arduino as being bad . . . I don't accept that description myself . . . The issue is that the RAMPS design tends to overload it, and the designers of RAMP
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tadawson
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RAMPS Electronics
Quotethevisad
In addition to this, the POT and the Resistor for the POT are mismatched, meaning a really crap tuning process. BTW, every bit of what I am stating here comes from Reprap wiki and other posts, so take my word for it or go look it up yourself, makes me no never mind.
Per the A4988 datasheet, the calculation for the maximum trip current is:
I_TripMax= Vref/(8*Rs)
With Pololus, t
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tadawson
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Delta Machines
You still might want to recreate your library are - I never gotten a single warning, unless I break the source . . . could be an easy fix, and it does seem that the IDE, overall, has more bugs in WhinDuhs than Linux overall . . .
- Tim
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tadawson
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Firmware - mainstream and related support
And again, if you were correct, I'd either be on fire or skipping all over. And I have this nasty tendency to accept mfg's spec sheets over folks I don't know, coupled with 100% consistent observations, as well as 100% success . . .
My current calcs are *exactly* as per the driver mfg's published specs and procedure, and frankly, I don't give a good crap what others think - I'm no longer meltin
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tadawson
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Delta Machines
Which begs the question of how you ever got it to heat, since those are the only gcodes used . . . . And you are certain the firmware accepted the commands and is still on-line? In any case, this definitively rules out anything in your slicer setup . . .
- Tim
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tadawson
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General
Folger explicitly states that thier sense resistors in the modules they source are .5, and the meltdown of the printed corners coupled with perfect operation atthe calculated values goes a long way in confirming that nothing is off by a factor of 5 . . . . were that the case, we would be having even bigger problems . . .
And no matter what the resistors, deforming the corners of the printer is
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tadawson
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Delta Machines
Quotesouthenprinter
Quotetadawson
Sorry, I can't give you specifics since I don't run Repetier, but there should be a communication feature that allows you to talk directly to the printer, and also see what gcode/messaging is going back and forth, and I will defer to others to procide you the specifics. I have heard this discussed regarding Repetier, so am certain that the function is there . . .
by
tadawson
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General
What version of both the Arduino kit and Marlin are involved? I have been running 1.6.3 and 1.6.4 on Linux, with Marlin 1.1.0, 1.2.0, and 1.3.0-dev with zero issues, but have found that if I updated the Arduimo kit, that sometimes I had to wipe and recreate my library directory, since old stuff sometime got left behind, thus inducing odd library errors.
- Tim
by
tadawson
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Firmware - mainstream and related support
Sorry, I can't give you specifics since I don't run Repetier, but there should be a communication feature that allows you to talk directly to the printer, and also see what gcode/messaging is going back and forth, and I will defer to others to procide you the specifics. I have heard this discussed regarding Repetier, so am certain that the function is there . . . (In Pronterface, for example, it'
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tadawson
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General
I can't say that I know that specific board, but you might try the typical gcode commands for showing config values. M115, M503, etc.
Again, this board may be different in it's firmware support, but myself, I won't run anything I don't know the contents of and that I didn't load myself . . .
- Tim
by
tadawson
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Printing
I found that it appears that Folger gives incorrect drive voltages that cause severe motor heating on the axis, and far too little power on the extruder. Folger has not yet given me a direct confirmation, but if the motors in the kit are those they sell on thier web page, the axis motors are .4A rated, and the setting of .35v drives at .88amps . . . way, way too much! Using the recommended 70% fa
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tadawson
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Delta Machines
If you send M109 S185 manually, what happens? It appears that something is commanding the heaters off . . .
- Tim
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tadawson
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General
Look in your gcode - what are the initial M104 or M109 lines at the beginning?
- Tim
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tadawson
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General
What firmware? The build from Folger, or something more recent?
And if you try to bring the carriage down with manual gcode - such as G1 Z25 F3000, what happens? (That should put the nozzle 25mm from the plate in the center . . .).
- Tim
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tadawson
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Delta Machines
The reds indicate MOSFET channel (typically heaters or layer fan) output, and as they pulse to maintain temperature, they will flash.
- Tim
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tadawson
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Reprappers
Look into filament/cooling, and toward the bottom you will find 'slow down on layers taking less than X seconds', and note there is a minimum speed allowed to slow down to, which defaults to 10mm/sec . . . . Thus, I suspect that this is where your speed change is comimg from.
- Tim
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tadawson
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Slic3r
What's the end gcode in question, and do you see it clearly present in the file you are printing?
- Tim
by
tadawson
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Printing
Not possible - if that were true, nothing would work. If you are measuring on the servo pins, make certain that the jumper to power them is present (it's not a given) or read the 5v on the endstop pins *to power supply negative* (IE black input lead).
- Tim
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tadawson
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Reprappers
So update on Linux and don't throw yourself into the cesspool of Windows? Seems like a far easier solution from here . . . and as a Linux user, I have *NEVER* seen an error from Slic3r, FWIW . . .
- Tim
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tadawson
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Slic3r