Hi everyone, I can print parts but I am a little backed up at the moment so I won't be able to help out right now. Will post again when I have some free time. I wanted to mention our website where you can finally buy RepRap parts locally. openhardware.co.zaby RegionX - South Africa, Cape Town RepRap User Group
Thanks, I have had a look in pins.h and again at the schematic and have come to the conclusion that I have no idea what I am doing. Even once I decide (for example) I will use pf4 and even if I knew how to assign that pin to the thermistor in Arduino I still wouldnt know where to plug the thermistor because it has its own mini circuit. This is way out of my league, I will need detailed instructiby RegionX - General
Thanks, I am having a look at the schematics but to be honest I am not sure what I am doing and once I find a suitable input I am not entirely sure how to change the firmware (Marlin) accordingly. If someone can provide further insight, that would be great. For your convinience, here is the schematic.by RegionX - General
Traumflug Wrote: ------------------------------------------------------- > I checked the resistance of the pins and both the > heat bed and extruder thermistor read 0 ohms > > So both are shorted. BTW., did you unplug the > thermistor while measuring? Measuring the > resistance of the ATmega pin isn't helpful. > > even though the Heat bed thermistor works fine. > >by RegionX - General
I have a Printrboard running Marlin that has been working great until today. I was "fiddling" with the j-head and upong reconnecting everything the thermistor read 218.36C. Unplugging the thermistor resulted in no change so it is obviously the board. The Temp is not always the same and can change up to 1C while I watch it but that is it. I assume I shorted something out but how do I find out whaby RegionX - General
I have had that "sputtering" it was a loose connection on 1 of the 4 wires to the motor.by RegionX - Reprappers
Wish I could help more but all I can say is that 24awg wire is fine for the hot end it's what I use. Mine takes 5min to hit 185C and about 8 to get to 240C. No Idea what would make it take so long besides loose connections.by RegionX - General
I just skimmed through so not sure how helpful this will be but I would put the side that has two adjustment screws parallel to the x axis, from what I can see that would make adjustment easier.by RegionX - General
Kinda weird, I added an LED and resistor and all of a sudden it works. Bare in mind it did work before but in the hot end MOSFET so it surely can't be that. Any way for now it works, if that changes I will try everything suggested. Thanksby RegionX - General
Thanks for the response, I will get the old multimeter out and see what I can do but to be honest I not sure what the voltages should be? Basically I plugged the bed in to the hot end MOSFET and it heated so definitely the bed is working and its also definitely not the MOSFET itself as I have now tried 2 different ones. I will also try swap out the right angled header but I doubt that is the prby RegionX - General
Should I repost in Sanguino? Just thought I would have more luck here being busier.by RegionX - General
Are the pulley grub screws tight? Flats on the shafts?by RegionX - Printing
Got them off and flipped them round but only the hot end one worked. So only blew 1 out of 2 considered myself lucky.... until I replaced it with a brand new one that also doesn't work. I have no idea what the problem is now, the only other possible culprit is the molex header but the soldering is perfect and its not exactly like you can have a faulty header right? Not sure what to even try.by RegionX - General
Never got this working by the way...by RegionX - General
I have just orderd 18 AWG for the heat bed, overkill at 18A rating (PPE). 24 AWG for the hot end also overkill at 6A (PTFE). Theby RegionX - General
Cool, haven't been able to get them off yetby RegionX - General
Scratch that. You know when I said I checked the soldering... I may have neglected to check which way around the MOSFET's are supposed to be. I just copied my Printrboard. I am about to find out if I have killed them.by RegionX - General
Just soldered up my first Sanguinololu 1.3a. It came with FTDI presoldered and Marlin loaded. I have it connected to Pronterface and everything works (well z is inverted) except the heaters. My thermisters sit at room temp (14C) and neither the heated bed nor the hot end will heat. I have inspected my soldering on the MOSFET's and it all looks fine. Firmware problem?by RegionX - General
So it will print off the sd no problem but I cant use the y endstop. I have tried wiring the endstop (mech) differently which allows it to print but then the endstop doesnt work so . Not sure what to do someone suggested Sprinter.by RegionX - General
royco Wrote: ------------------------------------------------------- > I think I read somewhere that you have to disable > the endstops to enable SD then re-enable them > somehow.?.? Surely not everytime? Here is what I see in pins.h wrt y endstop and sd: #define Y_STEP_PIN 5 #define Y_DIR_PIN 6 #define Y_ENABLE_PIN -1 #define Y_MIN_PIN 67 #define Y_by RegionX - General
On further analysis it only works with the y endstop disconnected... Not really sure nowby RegionX - General
My nooberosity got the better of me there. I had to define it there and higher up here: #if (MOTHERBOARD == 81) //printrboard // #define SDSUPPORT #endif It looks like it will work (about to try) but M21 returns this: echo : SD card ok workDir open failedby RegionX - General
But sdsupport is already defined further down below this // #define NEWPANEL //enable this if you have a click-encoder panel Really not sure what to do surely it has something to do with the elusive hardware console as stated here: //#define SDSUPPORT // Enable SD Card Support in Hardware Consoleby RegionX - General
This is what I see: //LCD and SD support //#define ULTRA_LCD //general lcd support, also 16x2 //#define SDSUPPORT // Enable SD Card Support in Hardware Console //#define ULTIPANEL #ifdef ULTIPANEL // #define NEWPANEL //enable this if you have a click-encoder panel #define SDSUPPORT #define ULTRA_LCD #define LCD_WIDTH 20 #define LCD_HEIGHT 4 Hardware console? is that supposed to beby RegionX - General
Maybe not? How would I rectify that? Something I can change in the firmware?by RegionX - General
Printrboard with Marlin. Tried what you suggested and got nothing back: >>>M21 SENDING:M21 >>>M20 SENDING:M20by RegionX - General
I have a 2GB Sandisk micro sd card. I have deleted everything off it and it is already in FAT format. I have tried putting normal gcode files and 8.3 (.g) files but when I go to Pronterface and select SD print nothing happens. If I hit upload to SD nothing happens, what am I doing wrong?by RegionX - General
I feel it's very much dependent on the quality of the PLA. Mine runs fine with no fan but I use a 50mm fan with a cone anyway. you can always change up the fan speed if it is too fast and try your hand at designing a directional cone thing, tinkercad is really simple otherwise search thingiverse.by RegionX - Reprappers
Running pronterface on my laptop, computer was only powering its own fans and leds. Anyway I unplugged everything in the computer and turned the heatbed a bit. We'll see... Thanks for the helpby RegionX - General
Just died 2 hours in to print!!!! Plug it back in and it works fine... wtf?by RegionX - General