I have to fine tune the extruder multiplier!? ok, I've seen this in slic3r but never really thought much about it... when/why/where/how does this change the print? I mean, why would I want it more than one if I'm adjusting the filament feed rate, where does this come in to play?by [email protected] - Printing
I guess skipped mentioning some of the steps in the first post, I did do all that, and I come up with 615 (to be exact), and the filament still seemed to back up. I cut it in half, and it seems to be running fine now?! may still need a little fine tuning (filament speedwise), but other than that, it's starting to look like I might actually get this thing working!by [email protected] - Printing
question: how much filament should my hotend put out (and how fast?) for 10mm going in? details: I'm trying to get my extruder ser properly, first, I've got .5mm tip (filament comes out at .6mm or so?) using 1.75mm ABS filament on a J-head hotend. I ran the extruder (without the j-head attached) and ran 100mm of filament through. It came out to something like 700 steps (m92 e700 (oh, usingby [email protected] - Printing
I don't believe there's a buffer, and that the characters are printing out as they're read. If I touch the chip, the floating inputs change states, and it's immediate. Those inputs bounce high and low while I'm touching the chip, then drop have to low when I let go. but, even if I hold the contact closed for even a minute, there's no change. I've tried the M119, with the button push and buttoby [email protected] - Sanguino(lolu)
void setup() { for (int i=0;i<28;i++) pinMode(i,INPUT); Serial.begin(115200); } void loop() { for(int i=0;i<28;i++) Serial.print(String(digitalRead(i))); Serial.println("."); } anyone experienced with Sanguinololu programming, Did I do this right? I'm trying to check all the input to see if my end stops are working. With this program, I see no change when I press the bby [email protected] - Sanguino(lolu)
I'm trying to program this new chip for my Sanguinololu, and my main problem right now is, I can't get it to read the endstops. when I send m119 it always says they're open, whether I've got one closed or not! How do I fix this?!by [email protected] - Sanguino(lolu)
I just have my sanguino burn up (well, it didn't actually burn, but got super hot and no longer works).. I replaced it, and everything seems (so far.. still trying to configure everything), I don't know WHY it did that, but I do know I turned on the heat bed, and the thermosistor came out from under the bed, so the bed got super hot (I guess as it heats up, the resistance goes down? and too mucby [email protected] - Sanguino(lolu)
I'm trying to program a new sanguino 644p, it took my forever to get the boot loader on there (btw, are there different bootloaders for atmega2560 and 644p? I bought 3, and I think I bootloaded them with the 2560 selected.) When I tried to load Marlin on it, it said 'select ATMega'.. I rebootloaded it with 644p, but I get the same error. If I select Arduino Mega, it doesn't complain about theby [email protected] - Firmware - mainstream and related support
I bought a kit, built it, and while it does print, occasionally it jams up, and I have to pull out the old filament.. When I pull it out, it just so happens, there's a wider part at the bottom. 3mm think. I ordered a 1.75mm hot end, and this wider part, to me, suggests they sent me a 3mm hot end. is this going to cause me problems or hurt the quality of my prints (I'm using 1.75mm filament...by [email protected] - Reprappers
what would I check on the board(The board DID work before this.. is it possible I burned one of the mosfets?) ?? If i get a new chip, can I bootload it myself with just the arduino software and the sanguino board?by [email protected] - Reprappers
I set up my reprap, got it printing ok (still working on calibrating), so I set up a print, started it, and while the bed was warming up, I checked my email. then a few other things... after a while, i noticed it wasn't printing, so I checked, and noticed the thermosistor had come out from under the table, and was still reading 20c, measured the temp of the hot bed and it was like 125c. so I slby [email protected] - Reprappers
yup, Marlin. Thank you, I'll try that. Do you know off hand what all variables I can set/need to worry about during calibration? or where I can find them?by [email protected] - General
(sigh) they didn't give me the firmware they burned in there... which is not a problem, I know what it is, and where to download it, I just don't know any of the other settings they've programmed in (such as which thermosister was used) is there any way to read the firmware from the device(Sanguinololu)by [email protected] - General
(I'm absolutely totally new to this too, so these are just guesses on my part). 1-the filament coming out wider than the nozzle, my guess would be your feed rate is too fast, or your movement speed is too slow. 2-I've had that happen too, and I found the nozzle to be blocked.by [email protected] - General
ok, I got everything set up and running, and I'm actually 'printing' stuff! ok, but it's way wrong. I tried printing a little box ( ) from the page, Pronterface says it's 34.25mm x, 34.27mm y, but when I print it out (I printed it 3 or 4 times trying to figure the right filament feed rate), as you can see, it's definitely not square. the y axis is moving twice as fast as the x (and the y sizby [email protected] - General
that I also don't know. I was looking at that piece of filament, and in the center it looks wider, but I'm confused as to how that would have melted but not the filament below it, closer to the heater? is there any point in a 1.75 hot end that would be wider? (I bought the hot end assembled, so I'm not so sure of the inner workings of it)....by [email protected] - General
that I couldn't tell ya? all I know is it's some sort of plastic tube? with a metal tip, the heater and thermosistor are in the tip....by [email protected] - General
a 'j-head' style Hot-end, .5 extrusion tipby [email protected] - General
I got my temperature set to 230.and the filament is going in to the hotend., but very little is coming out. when I pull the filament back out, it's kinda crunched up, and the end is a little bit wider... what's wrong? what else could I need to change?by [email protected] - General
Ok, well, turns out one of my pins had popped free when i tried to plug it in, so, resoldered it, and it works fine now.by [email protected] - Reprappers
I finally got the replacement stepper driver, which came to me as a kit rather than completely assembled (the board was assembled, but the pins where not). I soldered it all together, and I think I did it ok, with no bad solders or shorted pins. Anyway, I wasn't supplied with, so I'm waiting for some kapton tape to attach the heat sensor to the hot end, so I can't 'print' anything yet, nor canby [email protected] - Reprappers
ok, I've run pcb-gcode-3.6.0.4 and gcode_02. neither of which output gcode files? unless they default to a different file extension that need to change? (ok, I changed the .TAP file to .gcode, and opened it in pronterface, and I'm not sure what it's doing, it says it's loading it, but it's been loading it for about 5 minutes now, says it's on line 2 of 10864, and estimated completion time keepby [email protected] - General
ok, and where would I get one of those?by [email protected] - General
what all programs do I need to convert from an eagle board layout to gcode for drawing/plotting (not milling)... I've installed so many different programs, following the instructions I could find, but as of yet, nothing has produced a gcode version... help!?by [email protected] - General
turns out it was a bad stepper driver... so currently I only have x y and z moving, no ability to print while I wait for the replacement driver...by [email protected] - Reprappers
when I originally got these drivers, the pots were set to 3.2k. I had already turned them down to 2.4k when I felt them hot after 2 hours, I have now turned them down to 0.9k, and everything is running smooth and super cool after an hour...motors and drivers......by [email protected] - Reprappers
ok, I know I have to turn the pots on the drivers to change the amps, and I ASSUME I turn them counter clockwise to decrease, but I just wanted to check publicly here first to make sure I'm doing it correctly... (I ran the printer (without the extruder) for about 2 hours today, and checked the stepper motors and they were hot enough that I didn't feel like it was a good idea to leave my hand onby [email protected] - Reprappers
ok, so the steppers use power to hold themselves in place. But that comes from the external power supply, right? so, with no external power supply hooked up, only the usb to Sanguinololu, there should be no current there for it to be trying to pass on to the steppers, right?by [email protected] - Reprappers
how can plugging the board in, without motors attached cause any problems? they motors weren't told to run, so there's no current flowing.. even with them plugged in, if not told to run, there's still no current running though them? Or do I not understand stepper motors properly?by [email protected] - Reprappers