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Re: RAMPS for Due!
I have finally received my RAMPS-FD from Geetech. My observations so far are: - It's a bit dirty and missing jumpers (particularly for microstep configuration), as was observed by Dust. No pins were...
View ArticleRe: RAMPS for Due!
ambrop7: Re: Z-min - Check for a short under the resistor packs next to the 4050 (the one nearest the E0-MOT connector - RP801). My guess is that there is either excess solder, or a short under the...
View ArticleRe: RADDS RepRap Arduino-Due Driver Shield (32bit)
Hi aranciam, International shipping ( +EU-shipping) is activated in the Shop. [www.max3dshop.de] Thank you and Have Fun angelo
View ArticleRe: RAMPS for Due!
@Cefiar I've just checked the datasheet for the default pin state. I/O pins are set to input by default, with pull-up resistors *enabled*. That explains why FET5/6 are being driven. The datasheet also...
View ArticleRe: Smoke from ramps after connecting power supply, please help!!!!
You most likely burnt out your D2 diode. Most people wire the 12V backwards and burn out this diode. or perhaps it was installed backwards, Check out the 1.4 RAMPS wiki to find it on your board....
View ArticleRe: Real-time filament caliper sensor
Quotetjb1 QuoteShadowRam Instead of measuring the filament, perhaps a load cell of some kind on the idler/extruder can give you an accurate real-time feedback of the diameter, [www.robotshop.com] That...
View ArticleRe: Real-time filament caliper sensor
If: 1) you are trying to get the volume to under 1% (which is a good idea) 2) you are dealing with 3 mm filament (for example) 3) You need the diameter to 0.015 mm if it's perfectly round 4) If it's...
View ArticleRe: Smoke from ramps after connecting power supply, please help!!!!
D1 is a real good idea if you decide to run servos. It's also needed if your computer decides to put the USB into power save mode. The diode costs less than a dollar at your local store and way less...
View ArticleRe: RAMPS for Due!
If you can, go for a pull down that's less than 1K ohms. It still won't pull enough to bother the regulator. The lower you go, the less likely odd events are to turn on the FET's.
View ArticleRe: Smoke from ramps after connecting power supply, please help!!!!
Thanks for the reply guys, I ran over the wiring a few times and found no faults. So I said feck it a turned it on again and it worked :) Very strange, maybe there was some residue on a MOSFET or...
View ArticleRe: RAMPS for Due!
FWIW: If you're going to load firmware, it's probably advisable to remove the ESTOP jumper while you do so. This should tie all the outputs down appropriately and stop anything from being driven.
View Articleprintrboard revb wont connect
So my board died on me today at least i think, It was homing the z and half way it said lost connection and windows made the disconnected sound. after waiting a few seconds i power cycled the unit but...
View ArticleRe: printrboard revb wont connect
Standard drill is to pull everything off of the board, power it from USB and see if you can talk to it. If not try just 12V and USB. If still no joy .... bad board. You could look for missing parts...
View ArticleRe: RAMPS for Due!
Having Joe typical user abort a firmware upload and have the switches on probably isn't good "feature". I'd vote for making it as idiot proof as possible. Truth in lending ... there's an ARM board on...
View ArticleRe: Smoke from ramps after connecting power supply, please help!!!!
The world is probably short one spider ....
View ArticleRe: RAMPS for Due!
True. It was more a comment for "try this for the moment", and probably a good idea all round anyway for anyone playing with this version (which was pretty much a first run). And yes, while it's a a...
View ArticleRe: RAMPS for Due!
Quoteuncle_bob If you can, go for a pull down that's less than 1K ohms. It still won't pull enough to bother the regulator. The lower you go, the less likely odd events are to turn on the FET's. The...
View ArticleRe: RAMPS for Due!
Going through the schematic, I'm having a tough time finding the supply and ground connections for U1 and U2. I'm going by the pdf version, so it may be a bit out of date....
View ArticleRe: printrboard revb wont connect
well the board looks fine and there was no smoke or pops when it lost connection. I know they can fry internally and dont always show signs. im thinking of ordering a new 90USB1286 if the old one wont...
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