Re: Megatronics v3 and Stepstick A4988 problem
You should not try use DMM to check the voltage on driver output to motors, because that is high frequency (range like 10's of Khz) while a digital multimeter reads like 3 times per second (3 Hz), so...
View ArticleRe: Arduino and G-Code:S
thank you all, I have a question, in all of a G-Code lines, I can not found any command that tells the Arduino that the x axis is for the pin (...), y for pin (..), z for (...), so .... how the...
View ArticleRe: Arduino and G-Code:S
The firmware handles the translation. Download Marlin, look in configuration.h, you can tell it which set of electronics you have. If you have custom electronics, you can alter pins.h to define the...
View ArticleArduino and G-Code:S
Hello all, I am a student in mechanical engineering (mechanical design and production engineering), I can not understand how the Arduino board understands the G-Code when we use it for a RepRap, how...
View ArticleRe: Arduino and G-Code:S
... the G-code is 'parsed' (or interpreted) by the software, so the specific code-parts are separated, identified and executed by separate routines for each code-type. This HIGH/LOW-functionality is...
View ArticleRe: Arduino and G-Code:S
For a very simple example of switching a pin, see the "Blink" example coming with Arduino IDE. RepRap firmwares are quite a bit more sophisticated, though, usually the result of at least a full...
View ArticleRe: Arduino and G-Code:S
... and please post only one thread for a specific question ... I've merged the two threads here in electronics ...
View ArticleRe: Arduino and G-Code:S
Disregard my reply above, it`s for a completely different thread. (weird, I'm positive I didn't post it to this one...)
View ArticleRe: Mega controller deal
Just ran the Mega controller with heated bed @ 115C. Temps on the heated bed mosfet never went over 100C and the PCB temps around it were in the 120C range (tu). So far I really like this Mega...
View ArticleRe: RAMPS for Due!
Quoteangelo ... and in 2-3 years 32-bit becomes a Standard for reprap or 3dprinter I agree, the 8 bit solutions are obsolete. Btw you can get a single board that integrates the Arduino Due, the...
View ArticleAakar Motherboard v2 is out!
32-bit Arm cortex M3 based motherboard is here... Aakar motherboard is a modular CNC controller board based on LPC1768 Cortex-M3 chip. Due to its modular design it allows easier upgrades as per...
View ArticleMy motors are clicking and making erratic noises?
Hello, I just built a Prusa Mendel I2 from nwreprap, and the stepper motors will not work correctly. No matter what I do they always make jerky, inconsistent movements and strange, squealing sounds....
View ArticleRe: Spike suppression
Hi. I know its long time since this topic... But ant chance you can show how exactly did u wire the diode and what diode did u use. I have the same problem now with printer stop printing mid print and...
View Articlemegatronics problem
hi i have a problem with .pcd and .sch files of megatronics that i downloaded i attempt to open these files by altium but when i open them the whole page is blank!!!!!! what is the problem and what i...
View ArticleRe: Spike suppression
A standard silicon rectifier diode is too slow suppress the spike effectively, but a Schottky diode will do the job. I would use a 1N5820 or similar. Be sure to connect it the right way round!
View ArticleRe: My motors are clicking and making erratic noises?
Are you sure you have the stepper motors connected correctly to the drivers, i.e. each driver output pair connected to the two connections of one stepper motor coil?
View Article24v switch question (7 switch, two power supplies)
I have a 12V system running ramps and Marlin firmware. I have an additional 24v power supply which I would like to drive my heated bed. I have a seven switch (thanks Traumflug) and limited knowledge...
View ArticleRe: My motors are clicking and making erratic noises?
Icecats, That squealing sound and jerky inconsistent movements is one symptom of too high of a step rate. Its not a current issue. This could have several causes: Double check the board's...
View ArticleRe: 24v switch question (7 switch, two power supplies)
Depends entirely on your firmware. There you define which pin does what. Easiest move is probably to just replace the pin definition for the heated bed. When operating 24 V make sure you have the 2k2...
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