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You are not getting a 'bunch of errors' - you are getting exactly *one* error - MINTEMP - the rest is normal Marlin startup verbage. The error is due to the extruder thermistor having a bad connection, reading 0 degrees (not plausable) and halting the printer due to that, and thus no motion or response, exactly as the firmware is designed under these conditions. Check the wiring to the thermistor
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tadawson
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Delta Machines
It may well be in the wrong position . . . is not the other pin the servo feed, or did I brain fart?
- Tim
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tadawson
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General
If I recall, that header has two functions . . . the two pins the jumper is on feed 5 volts to the servo pins near it, or can be used to feed a separate 5v source to said pins. The third, open pin, is the PS control line output.
- Tim
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tadawson
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General
There really isn't anything involved other than the MOSFET. Replace it and keep moving forward . . . no need to trash the board for a component failure . . .
- Tim
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tadawson
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RAMPS Electronics
The Marlin.ino file is not something you name, it should be part of the firmware that you downloaded from Folger (maybe it's .pde - thier stuff is older . . .) but again, all this is in Folger's config manual for your printer, with pictures . . . do what's there (and don't get creative) and this is pretty hard to get wrong. I'm not sure what the port will be on Mac, but on other *nix, it is /dev
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tadawson
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Reprappers
QuoteDMPurdy
Here is what is happening. Now it didn't error out but said timeout avrdude...
That's not Marlin - that's the baseline Arduino template that amounts to nothing. Go to the menu on the upper left, select open, and drill down to your Marlin directory, select "Marlin.ino" and open it and try again. Avrdude is the programmer for the Mega, so that error means that either it was not plugge
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tadawson
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Reprappers
Either you made an error in your configuration . . . . or the board type is set wrong . . . never heard of that card on a Folger 3d . . . Be certain that you have the board type set for the Mega 2650 . . . otherwise, it *WILL* error, no matter what . . .
- Tim
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tadawson
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Reprappers
I think it was the *INPUT* fuse that was 5A - IE good for 600 watts . . . they typically don't fuse the output . . .
Thermistors, endstops and the like do not use 12 volts, and will read even the 12v supply is unplugged.
- Tim
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tadawson
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General
IDE is the Arduino development kit, and is the *ONLY* tool you have to compile and upload Marlin to the Mega.
If my memory serves,mall this is covered in Folger's documentation . . . are you using it - both the build and config guides?
- Tim
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tadawson
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Reprappers
Use a duct - a layer fan should put little to no air on the hot end. If not possible, slow it down some more!
- Tim
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tadawson
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General
Pronterface can't directly control the towers - it just sends positions in X, Y, Z coordinates, and Marlin calculates the associated tower positions, and moves them accordingly. IE, for a Z move, all three should move vertically the same amount . . . if not, then either steps/mm for that tower or microstepping on it's driver is wrong.
And yes, the towers are referred to a X, Y, and Z, which is c
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tadawson
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Printing
You have put Marlin on it with the Arduino IDE as per the docs, right? The boards have no code loaded as shipped . . .
In any case, check your Marlin config, verify that the baud rate close to the top matches what you are set to in Pronterface, reflash, and try again.
- Tim
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tadawson
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Reprappers
You might be better served to try the spare driver first - motors are passive, and pretty hard to break . . .
Check DEFAULT_MAX_FEEDRATE as well as DEFAULT_STEPS_PER_UNIT for the extruder as well. Also note that Pronterface uses mm/*minute* for extruder speed, so you need a pretty big number to get much movement.
- Tim
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tadawson
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Printing
Does the extruder motor turn at all? I kmow that mine ran backwards when first built. If yes, check direction, reverse if needed. If no, swap the extruder with an axis on the ramps and see what runs. Assuming you didn't get creative in Marlin, the pining should be correct . . . well, unless you put either the stepper driver or motor cable on the second extruder port on the ramps. Also try thr sp
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tadawson
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Printing
Pick your platform, and when you get to the next screen, hit "old" and everything since the dawn of time should be there . . .
I know that ooze prevention and volumetric extrusion came into being between 1.2.7 and 1.2.9, as well as some routing algorithm changes. Release notes are on the site linked above if you want more details, but for "non exotic" use, you probably wouldn't notice a diff
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tadawson
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Slic3r
Quoteanimoose
I look at the heatsinks on a cheap A4988 board and they make me nervous. The sit very close to some of the passive components on the board. Does this bother anyone else? Any risk of them shorting something out?
Consider that the sink has thermal tape on the bottom, so while it is close, it isn't necessarily conductive. And yes, I spent quite a bit of time on this, and still made s
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tadawson
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Stepper Motors, Servo Motors, DC Motors
Yup, it's goal is described as adjusting temp to minimize ooze . . . It drove me nuts, and I don't use it. It *may* be more intended for dual extruders, but played hell on my single . . .
- Tim
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tadawson
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Slic3r
Bottom right corner, right below the window where you get messages, there should be a box with a "SEND" button next to it. Type 119 in the box and hit send. The reply will be in the window immediately above.
- Tim
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tadawson
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Reprappers
A 40 watt heater at 12v will about 3.6 ohms, 25 watt is 5.8 ohms, and a 100 watt heat bed around 1.6 ohms . . . so yes, they are quite low.
- Tim
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tadawson
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Prusa i3 and variants
If you have a pushbutton your LCD, it calls kill as an e-stop . . is it perchance stuck or broken?
- Tim
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tadawson
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RAMPS Electronics
An M502/M500 should accomplish the same thing - restore defaults, and write them to the EEPROM . . .
- Tim
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tadawson
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Delta Machines
#10 fits a RAMPS, but is snug, #12, no problem . . . unless they used undersized connectors on your board . . . the Molex series that they are knocking off are rated for 16A, and have decent sized terminals.
- Tim
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tadawson
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Safety & Best Practices
Wonderful! Have fun with your printer!
- Tim
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tadawson
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Reprappers
The $19.95 is printed on the box by Inland, and appears to be MSRP . . . the Microcenter here in the Dallas area has been $14.99 both times I bought it, and other than one spool of black 1.75mm PLA that had bulges over 2mm (and that they happily replaced) it has run great. It's hard to imagine how they sell any of the Makerbot 1kg stuff at $45/spool with this sitting next to it . . .
- Tim
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tadawson
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General
At this point, if you have not already done so, insulating the bottom of the bed may do the trick. I couldn't getbover 95 on my Kossel, but with about 1/2" of foam under the bed, I hit 100 withot any trouble.
And you have not changed any firmware or anything along those lines? Perhaps a MOSFET has failed . . . there really isn't much on the RAMPS between the Arduino and the FET.
Oh, and only dr
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tadawson
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RAMPS Electronics
Wow, that's Chinese quality control at it's absolute finest! Largish parts missing, but what the heck . . . ship it! Pretty sad that Folger missed it as well, but then again, a reseller shouldn't need to inspect every part they pass through . .
If you were in my neck of the woods, I'd take care of this for you as well . . . it's 5 minutes tops . .
- Tim
QuoteEdwinCal
Alright guys from my pos
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tadawson
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Delta Machines
One other thing to note, is that the extruder shipped by Folger eats grooved bearings. I had two fail, each at a bit less than a kg of filamet fed. When they go, you lose the counterforce on the feed gear, and nothing moves. When I took the extruder apart, the shields were destroyed, and the ball and center race fell out . . . a complete rekit of the bearing. Why, I'm not certain . . . either too
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tadawson
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Prusa i3 and variants
Was that the new or old Arduino that gave the warning? Or both? Certainly sounds like a 5v fault on the Arduino, unless both did it, in which case I'd question the computer being used as well. A blown 5v reg on the Arduino could well cause that . . . not sure how the regulator and USB 5v are isolated, if at all . . .
And never assume the manual is absolutely right . . . likely, based on other ev
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tadawson
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Reprappers
Were I in a production environment, making multiples of the same thing, I would likely untether as well. For one-offs that frequently need tweaking, it adds a lot of pain, as you somewhat noted referring to your test procedure. And, I note again, that when runnimg advanced platforms, absolutely *none* of the toolchain is outside my control . . . I maintain and can alter/keep/recompile any of it a
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tadawson
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General
Quotedc42
Tadawson, your rant is beneath contempt and I wont waste any.more time responding to it.
Translation: the facts presented are indisputable, so I won't . . .
Every request for help I see, you post a commercial, rather than anything useful. Frankly, the moderators should start dumping those posts for thier excessively commercial nature . . . It's so rampant, it makes the Chinese spam l
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tadawson
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General
