Re: RAMPS for Due!
I've checked my E-stop and it works for all the hardware I use, including X stepper.
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I've just discovered that my E0-dir is broken. The extruder would always move in the same direction. I've moved the same stepper driver to the E2 slot and it works there.
View ArticleRe: RAMPS for Due!
Quoteuncle_bob 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 I'm going by the pdf version, so it may be a bit out of date.... Those are...
View ArticleRe: RAMPS for Due!
ambrop7: E0-Dir and Z-Min run next to each other, and are on the bottom of the board, next to Pin 21 of the Due. Can you check that they actually put those tracks on the board (it's possible they...
View ArticleRe: Opensource PIC/ AVR bipolar stepper driver
can you list some dedicated motor driver which can support external fets ? other than allegro
View ArticleRe: Echo: SD init failed on RUMBA
Hi! Did you slove your Problem? I have the normal sdcard adapter for rumba and get a sd init fail and i have no glue how to solve it.
View ArticleRe: Opensource PIC/ AVR bipolar stepper driver
Allegro is the only one that's really developing parts these days. Why rule them out? The TI DRV8711 certainly supports external FET's and they are available in rational packages.
View ArticleRe: RAMPS for Due!
Quotebobc Quoteuncle_bob 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 I'm going by the pdf version, so it may be a bit out of date.......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: Echo: SD init failed on RUMBA
Normally this problem is due to either an un-formatted card or a card that is not compatible with the SPI read / write approach used by the Arduino library.
View ArticleRe: RAMPS for Due!
Quoteuncle_bob Quotebobc Quoteuncle_bob 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...
View ArticleRe: RAMPS for Due!
If you will be (in some cases) driving the inputs with 3.3, but running a 5V supply, you might consider a two resistor level shifter to keep the switch points happy. A switch point of 2.5V + 20% of 5V...
View ArticleRe: printrboard revb wont connect
There are a lot of things that can go wrong. Bad solder joints are pretty common. Tin whiskers are pretty exotic. Just about any part can fail. Unless you dropped it, the crystal should not be a...
View ArticleRe: RAMPS for Due!
The idea is to be able to use them at 3.3V on a Due (where it'll all be 3.3V), and 5V on a Mega (where it'll all be 5V). And yes, I know we haven't tried it on a Mega yet. We'd like to try and keep...
View ArticleRe: Opensource PIC/ AVR bipolar stepper driver
Allegro parts are not available in small quantities in our country, only available in 3000
View ArticleRe: printrboard revb wont connect
well i have a rigol DS1102E but truth be told im still learning my way around it. I would be very appreciative of anyone willing to help me track down the problem. From what a few have said i should...
View ArticleRe: Echo: SD init failed on RUMBA
My card is FAT16 formatted and I tried several cards. But none worked. One card even works in my 4pi controller, but I also get a init fail at the rumba.
View Articlebuilding my own 3d printer
hi im new here and ithink im gonna need loads of help.im building my own 3d printer out of things i found,i must say it looks lot better than alot that are out there already,anyway the help i need is...
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Re: RAMPS for Due!
QuoteCefiar ambrop7: E0-Dir and Z-Min run next to each other, and are on the bottom of the board, next to Pin 21 of the Due. Can you check that they actually put those tracks on the board (it's...
View ArticleRe: RAMPS for Due!
I'm wondering if there should be pullups/pulldowns for *all* heaters, as well as stepper enables, in front of the tri-state drivers (not just for FET5/6 which are active-high, unlike everything else)....
View ArticleRe: RAMPS for Due!
Hi ambrop7 Regarding the tracks, I've re-routed that area, but not by much. My guess is the tracks aren't broken, but that the holes weren't plated through (or they've damaged the plating) so that...
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