Re: RAMPS for Due!
Hi sriz, You need an original arduino due or a UDOO for ramps-fd or radds. RADDS has also an EEPROM. If you dont need it, just disable it to the Firmware. Also The repetier firmware. Guys ... what is...
View ArticleRe: RAMPS for Due!
Thanks Angelo! My Due isn't original so maybe that's it, I also have a UDOO so will try it with that and report back. Just to be clear though I should be able to just have a stepper motor and driver...
View ArticleRe: Brownout reset general cause?
There is a 5v coming from usb, that can be measured on the usb connector itself (search "usb pinout"). And there is a 5v made by the regulator on board, meaning the board should have 5v also when the...
View ArticleRe: Brownout reset general cause?
Quotesungod3k1) Is it possible that the current fluctuations are so fast that I cant detect them with my normal Voltmeter? Yes.
View ArticleRe: Help Wiring Large (12"x12") Heatbed Through Relay or MOSFET
Well, from what NoobMan was saying, that's not ideal because it slows things down.
View ArticleRe: Help Wiring Large (12"x12") Heatbed Through Relay or MOSFET
What i meant was to avoid paralleling the gates especially when one mosfet is not used. Cascading power mosfets does not work, not like that, and on several considerations. On signal mosfets probably...
View ArticleRe: Brownout reset general cause?
@Noobman: I noticed the LM7805 getting superhot fast but I read that this happens as a result of the difference between regulator and usb output and accepted it. I actually measure 4.61V at the legs...
View ArticleRe: RAMPS for Due!
I'm using the Geetech Due with RAMPS-FD and current Reptier-Firmware without trouble. If a filament stepper isn't moving, besides the obvious wiring problems, that can happen if the firmware is...
View ArticleRe: Help Wiring Large (12"x12") Heatbed Through Relay or MOSFET
slowing down heat bed ?I have heat bed on aluminium plate and its powered every 5 minutes for about one minute.do not need any fast reaction.you can use mosfet on ramp and use 5 volts to triger...
View ArticleRe: Help Wiring Large (12"x12") Heatbed Through Relay or MOSFET
I think you need fast switching for the PWM for PID temperature control (at least that's my understanding).
View ArticleRe: Help choosing a control board
By the way, don't know if you already have this, but I thought I just bring this up to you. My buddy got this info directly from LulzBot as he is also trying to make his own version of the TAZ. Take...
View ArticleRe: DRV8825 tiny trouble
It's just a test because I am running out of ideas.... This is such a strange issue... I can hear the stepper making a sound while trimming the pot but no movement on E0... I tried lots of drv8825s...
View ArticleRe: Looking to upgrade My heatbed MK2A-ALU 3mm Heatbed- Has anyone used?...
Those plates are garbage. I had one, ended up going back to a mk2 with a 6mm milled aluminum plate on top. Channel milled in middle of plate so thermistor could go in. Insulated bottom of heatbed and...
View ArticleRe: Brownout reset general cause?
Some little progress I removed the voltage regulator and get now a clean 4.98V when the board is completely empty. I Also removed the pololus which I hadnt done before and found that one of them was...
View ArticleRe: DRV8825 tiny trouble
Ok, this brings me back to my first assumption, that step size might be involved: I just tried repetier firmware instead of marlin, and E0 works fine with the drv8825.... Even more strange???
View ArticleRe: Help Wiring Large (12"x12") Heatbed Through Relay or MOSFET
Do not use pwm for heated bed. I would certainly avoid doing that. When mosfet opens and closes, before reaching its end state (fully open), it goes through a state where its partially open and the...
View ArticleRe: Brownout reset general cause?
The 7805 gets hot when it has to deliver a big current. The linear voltage regulator works by burning as heat the difference in voltage, so the watts dissipated depend on how much current you draw at...
View ArticleRe: DRV8825 tiny trouble
See what pins definitions each have for E0 step and E0 dir, and compare. Those are in file pins.h under the section of motherboard=... which you selected in config.h. I think its possible that in you...
View ArticleRe: Brownout reset general cause?
I removed the 7805 and that results in 4.98V when the board is completely empty. I took a closer look at the drivers 5V - GND driver 1 alone = 13.7 ohm 5V - GND driver 2 alone = 9.7 k ohm 5V - GND...
View ArticleWhere to get female board moun versions of molex 4-pin connector (typically...
I'm trying to build a few boards that I was hoping to power using right angle 4-pin molex connectors. For that I've found these: [www.digikey.com] [www.digikey.com] I would really like to daisy-chain...
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