Re: DIR pin
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 what :S
View ArticleRe: Steppers not moving.
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...
View ArticleRe: DIR pin
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...
View ArticleRe: DIR pin
I was reading the Sanguinololu Reprap page and found this: [reprap.org] QuoteFuse Settings The fuses for the atmel chip must be changed from the default factory settings to disable JTAG. Symptoms of...
View ArticleRe: DIR pin
I just received a broken Melzi and fixed it up, after replacing all the stepper drivers and adding a new 5v regulator all was good except the X dir pin (which goes directly to the micro) it seems it...
View ArticleRe: Steppers not moving.
QuoteEach stepper motor will have a different setting but try lowering it to a very low level and then keep increasing till it stops moving. Pardon. There's only one right setting for each motor of a...
View ArticleRe: DIR pin
QuoteIs it possible the IC (ATmega1284P) has gone bad? Might be the stepper driver. Power down, pull the Pololu out, power up and measure again to find out. QuoteSo my fuse settings may be bad. Fuses...
View ArticleRe: $15 serial to wifi module HLK-RM04
billyzelsnack Wrote: ------------------------------------------------------- > Excellent work and nice writeup. Thanks, if you see anything obviously wrong please tell me. Are you going to partake...
View ArticleSTM32 WorkStation Project
Hello dear developers, I want to tell you about my project. I've been working on it for a year. This CNC controller based on STM32F10x LQFP64 chip. I have positioned it as a universal controller and...
View ArticleRe: STM32 WorkStation Project
I doubt your gonna get any donations from the reprap community to fund an unfinished project that isn't arduino based. Maybe if you get it working You could find private investment and turn it into a...
View ArticleRe: How do i use the spare printrboard pins to drive a transistor
Quoteoldmanbeefjerky OK, i decided to go through every pin until i got it, finally found the output pins. Ironically my laser driver stuffed itself somehow, right before i had it all ready to wire up,...
View Articlehosted thermistor reading high:S
Hello everyone I'm new to the 3D printer world with a Mendelmax 1.5 style printer that I just finished building. My Mk V-BV hotend thermistor (Semitec ) seems to be reading 30c to 50c higher than then...
View ArticleRe: hosted thermistor reading high:S
If your thermistor, like many others is mounted in a hole, right next to your heat source, inside a metal block, its gonna read hotter than a measurement taken on the surface of you nozzle. What...
View ArticleRe: Steppers not moving.
Sorry guys, I don't mean to start an argument. I ended up shorting the board out with too high a voltage.....doh! Maybe I will just buy a printrboard or something more reliable. Thanks for your...
View ArticleRe: STM32 WorkStation Project
Thanks for the information slymike. Maybe I'll do my project is open to all, in 5-7 months.
View ArticleSolving CPU overheating problem
After tidying up the wiring I had a strange CPU overheating problem with my printer electronics. The problem turned out to be a general one that is not related to a specific CPU or electronics board....
View ArticleRe: Steppers not moving.
A Printrboard won't survive a 220V injection either ;) Sanguinololu allows to replace ATmega and Pololus, so I'd do that. If it wasn't 220V, but just 12V, all other components have probably survived.
View ArticleRe: Solving CPU overheating problem
The Melzi has 10uF caps on the limit switch inputs. Must have been a massive spike to get past those and latch up the CPU. Plus nobody else has ever reported this and most reprap electronics doesn't...
View ArticleRe: Hotends!
dbarzel Wrote: ------------------------------------------------------- > Thank you! so now im trying to decide between an > E3D to j-head :P, can i hear some opinions or > recommendations...
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