can't make Endstop_1.3.1's signal detected by arduino UNO + have a weak LED's...
Hi, I'm testing the Gen7_Endstop_1.3.1 on a breadboard. And I can't make it works fine. I link the output signal of the endstop to an input belonging to an arduino UNO Board and I plug an external...
View ArticleRe: ATX power supply question
Yup, absolutely. That's what I did. My heat bed uses like 30A, so I have about 8 wires grouped together for the heat bed, and 2 grouped together for the RAMPS board. Basically, take the total amp...
View ArticleRe: Marlin + RAMPS 1.4, spinning motors?
QuoteDust Lots of questions to help diagnose your issue.. Do you have 12v wired into the 12v 5amp ramps power socket? this is used to power the steppers. is this power supply on? Yes, it is a 12V...
View ArticleRamps 1.4 Overheating
Question: I have a 12v power source which is currently feeding 12.48v into the board. is this the reason my board is overheating? Resulting in: steppermotors moving in unusual way, extruder motor +...
View ArticleRe: Ramps 1.4 Overheating
main question: is 12.48v output too much? if so should i lower it back to 12V even?
View ArticleRe: Need some advice or reviews on SainSmart products
have you ever ran into the Ramp1.4 overheating? I have a 12v source feeding 12.48V force. Should i lower it back to 12? Great info on this vine btw.! - Janski
View ArticleRe: can't make Endstop_1.3.1's signal detected by arduino UNO + have a weak...
Which signal voltages do you get? The LED is fed with current/voltage from the signal, so it's not possible to give more juice without dragging the signal even lower. The given resistors are choosen...
View ArticleRe: can't make Endstop_1.3.1's signal detected by arduino UNO + have a weak...
I'm sorry I actually had a 10kOhm R2 instead of 1kOhm. Now I got a 0/ 3.9V signal and a LED with a way better light. Thanks
View ArticleRe: Marlin + RAMPS 1.4, spinning motors?
bit late for a full reply, so this is quick... check those endstops. Normal setup is if the switch is open or disconnected, it is treated as triggered and will stop movement in that direction. re the...
View ArticleStepper motor randomly changing directions?
Hello, I ordered 39 steppers motors on ebay, almost all of them are 4-6 wires, I have a arduino ramps 1.4 connected to a computer power supply, I used my multimeter and found the 2 coils on a few on...
View ArticleRe: Stepper motor randomly changing directions?
... moving in only one direction is common with activated endstops ... randomly changing direction points to problems with the DIR-pin configuration/wiring or voltage level ...
View ArticleRe: Stepper motor randomly changing directions?
I configured the wires any way possible, back wards, flipped coils, flipped one wire with each other on each coil, etc etc, still the same, and I already configured the voltage level from the lowest...
View ArticleRe: Stepper motor randomly changing directions?
... a proper configured DIR output would change between HIGH and LOW when changing the moving direction and start to move ...
View ArticleRe: Stepper motor randomly changing directions?
high and low? I dont think I understood you, as in change of voltage?
View ArticleRe: Stepper motor randomly changing directions?
... yes, LOW is normally at 0V and HIGH depending on your system at 5V or at 3,3V. One problem with 3,3V electronics could be, that the 3,3V HIGH level is not enough to trigger a 5V input ...
View ArticleRe: Stepper motor randomly changing directions?
did I do it right? I connected the tester with a- a+ and the high was .5-.6V then I connected to b- and b+ and the high was 1V... that is when the tester is in line with the motor and the arduino, if...
View ArticleBurned an analog port.. how to debug to see what needs replacing?
So, i was there the other day thinking "Boy, it's such a hassle to change my hotend since i have to take out all its cables from the ribbon.. I should get some plugs for fast hotend switching", so i...
View ArticleRe: Stepper motor randomly changing directions?
... do you have experience with measuring electonics? You don't have to measure inline the motor wires - and be carefully, don't disconnect/connect the motor with power on, this will wreck the driver!...
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