Hi, My heater is struck @ 138 ~ 148 C. When I was building the reprap, I had assmebled the heating elements and it heated up quickly to 185 and maintained. Now I have completed everything and want to start printing. Now it is not going beyond 148. Not sure what is the issue.by AnandMG - Plastic Extruder Working Group
Hi all, I finished assembling the printer. When I first connected the heater and thermistor, I heated it up, it quickly went till 185 and maintained it. Now I have assembled every thing and want to start printing. But the heater is kind of struck around 138 to 148C. It is not heating beyond that. Not sure what is the reason. Is it because it is not getting enough power? How much Amps should be gby AnandMG - Sanguino(lolu)
Like many of you newbies, the most dreadful thing I fear is "stk500_recv(): programmer is not responding" error. There can be so many reasons why this can happen. I was in the same situation. I had uploaded Sprinter in Sanguinololu/Atmega 1284P. After changing so many things and figuring out how to make it work, I uploaded it. But unfortunately it didnt work properly because the fuses were wrongby AnandMG - Sanguino(lolu)
Hi I'm trying to set the fuses in my Sanguino (1284P-16). The current fuses are: Quote avrdude: AVR device initialized and ready to accept instructions Reading | ################################################## | 100% 0.05s avrdude: Device signature = 0x1e9705 avrdude: safemode: lfuse reads as FF avrdude: safemode: hfuse reads as 9A avrdude: safemode: efuse reads as FF avrdude: safemode: lby AnandMG - Controllers
Hi, For some great reasons, the fuses in my sanguino are not set properly. I tried burning the bootloader using USBasp and Avrdude is throwing up errors for which I couldn't find any solutions anywhere. I planned use parallel port to burn the bootloader but unfortunately parallel ports are dinosaurs. I ordered a 25 pin parallel to USB cable but the seller shipped 36 pin. My question is can Iby AnandMG - Controllers
I couldn't find any setting in configuration.h file. So I went through the software. There are lot of places where they write output to the step pins. If I miss out couple of places or add new bugs, it would be a nightmare to find out what is wrong, when in the first hand I don't know fore sure that the my L297/8 circuit works properly. (I had built my own circuit, didnt buy a pre-tested board)by AnandMG - Sanguino(lolu)
I was reading the Sanguinololu Reprap page and found this: QuoteFuse Settings The fuses for the atmel chip must be changed from the default factory settings to disable JTAG. Symptoms of incorrect fuse settings: X axis only moves in one direction. Endstops do not work. So my fuse settings may be bad. Got to spend few more $$ to buy some programmer and to get it rectifiedby AnandMG - Controllers
Did that. Re-uploaded a new firmware, installed new pronterface but still the same issue. It used to work properly only recently it is acting crazy. All other pins (X step, Ystep & dir, Zstep & dir, Estep) are working properly. Only X dir is constantly high. Is it possible the IC (ATmega1284P) has gone bad? That is the last thing I have to try. Issue is installing a bootloader in a blanby AnandMG - Controllers
Were you able to fix it? There are many reasons for that and I will explain the one I faced. The issue was no of steps i.e. mm/min. It seems yours is right now 3000. Mine too was very high. When I tried to move my stepper motors would hum but not move. After lot of searching I found the steps setting was the issue. I had to reduce it to 50 to make it move. Each stepper motor will have a differentby AnandMG - Controllers
Im having the issue only in X Dir pin. Others go from 0 to 4 point something when I change the direction. X Dir pin is always high. Something is wrong, I just don't know whatby AnandMG - Controllers
Got a simple doubt on DIR pin. X_DIR_PIN will be high for one direction and be low for opposite direction right? My DIR pin is always high and hence my stepper is rotating in only one direction. Any reason for this?by AnandMG - Controllers
Solved that. Used a 7404 invertor IC. Just explaining in case anyone else tries it out. First I had issues even using 7404 as the L297/8 circuit & Sanguino weren't linked. I was using a separate power source for Sanguino and another for the L297/8. Hence, so there was no absolute ground for the 7404, and hence it wasn't always high. When I used the same source, it worked like a charm.by AnandMG - Sanguino(lolu)
Oops, I meant the step signal not the directionby AnandMG - Sanguino(lolu)
Hi, I have burnt like 8 Polulu/Stepsticks. Those are costly and have long waiting time. So I was trying to run it with L297/L298. The only problem is Polulu/Stepstick the DIR signal is on high, while on L297 it is on a low pulse. Is there a way to change the signal, in the Configuration.h? I'm using Splinterby AnandMG - Sanguino(lolu)
Hi James, I think that is the issue. Thanks a lot for your valuable suggestion! Will change and see what it does. btw what happened is The config file has these listed // Sanguinololu 1.2 and above = 62 // Gen 7 @ 16MHZ only= 7 First I had the selected "62". I tried to upload using Arduino 1.0.3 and it wasn't uploading. I tried a lot of things, like uploading bootloader again, et al and one oby AnandMG - Controllers
Hi, I'm in process of getting electronics ready and thought I will check if the motors run properly I have uploaded bootloader & firmware (splinter) on Sanguinlolu 1284P I placed polulo driver for X & Y. Connected thro' pronterface & it said connected. Wen I tried to move X axis motor it didn't. I accidentally touched the lower half of Atmega 1284P and motor moved! Wen I removed my hby AnandMG - Controllers
Thanks a ton! The exact piece of info I was looking for!by AnandMG - Firmware - mainstream and related support
HI James, Whether M12 or M8, basically I'm using a different rod than M8, then what changes to I need to make in the firmware? How does it calculate how much has to be moved? and where are those settings? Thanksby AnandMG - Firmware - mainstream and related support
Hi, I'm using a 12mm rod instead of 8mm for Z axis. I'm planning to upload Splinter firmware to the Sanguino board. I went through the configuration file to see what parameters I have to modify but couldn't zero in on any of them. Or is it in the Math file? Can anyone let me know if this is possible? I know it should be, but need to figure out how hard it will be. Thanksby AnandMG - Firmware - mainstream and related support