Re: New Smoothie Board
Well thank you too really, for not taking it the wrong way. The gate like that is inverter with one small npn and a pullup and output taken after pullup, so when small transistor is not driven it is...
View Articlerepstrap electronics
So I'v build myself a repstrap. I was about to hook up my stepper motors when I realized I'm not really sure how to. So I came here for help. My stepper motor and driver are from Stepperworld and I...
View ArticleRe: repstrap electronics
Cant find exact words on that website, but from the looks of it that board seems unipolar and those motors have 6 wires so can be wired in unipolar configuration. But the motor from extruder is...
View ArticleRe: repstrap electronics
Wow.. Parallel cable, Qbasic in the software section, link to a geocities site in the links section. Is this 1992? I can't seem to find any info on how that stepper driver receives commands on that...
View ArticleRe: repstrap electronics
I got this driver like 5 years ago for a cnc project I was trying to build and don't really want to buy something new. Would something like this work? [builders.reprap.org]
View ArticleRe: repstrap electronics
I got 200 steps/ revolution out of the thing the last time I used it. However I cant find a pc that has a parallel port on it. LOL
View ArticleRe: New Smoothie Board
Thumbs up for the fet driver. But one more thought if you still want to bear with me. Works nice for 12V. But ppls may go for 24V in which case it may be something to investigate, for example there...
View ArticleRe: repstrap electronics
Not sure, but perhaps it can still be used, you may want to investigate that instead. But otherwise yes its old and not really suitable for reprap these days.
View ArticleRe: repstrap electronics
Yeah, I'm starting to think i should have just gone with a reprap kit instead of trying to piece something together from around the house. Its starting to really frustrate me. I was just trying to get...
View ArticleRe: repstrap electronics
I found some documentation that came with the board. Do you think I could hook it directly to an arduino and put values in like it was a serial out? I'm not really sure how serial communication works....
View ArticleRe: repstrap electronics
Download the cd from stepperworld, interface.doc gives you the pin assignments, connect the arduino to the parallel socket and you should be able to drive this thing easily enough. Parallel ports used...
View ArticleRe: New Smoothie Board
Sweet, thanks again. I've made another attempt at getting all the traces down. Everything's connected, in theory, but I have a godawful mess of vias and some ugly rat's nests, so I'll probably try to...
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Re: Some tips on clean wiring my machine?
Okay, I have been cleaning up a lot. Rewired the machine, replaced all connectors for versions with longer wire so I don't have this going on: Stepper motor - four short wires - four other short wires...
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Re: repstrap electronics
Pin [Bit] addr I/O Function 2- [D0] bs OUTPUT X axis direction 3- [D1] bs OUTPUT X axis step 4- [D2] bs OUTPUT Y axis direction 5- [D3] bs OUTPUT Y axis step 6- [D4] bs OUTPUT Z axis direction 7- [D5]...
View ArticleRe: repstrap electronics
Do you think I could use an Arduino diecimila with some shift registers (74HC165N) to increase the outputs. Maybe a diy board for the extruder? I have a bunch of spare parts laying around like voltage...
View ArticleRe: Some tips on clean wiring my machine?
Cable chains are nice for making sure the wires don't get caught in anything. This video shows cable chains in action.
View ArticleRe: repstrap electronics
tbskinner Wrote: ------------------------------------------------------- > Do you think I could use an Arduino diecimila with > some shift registers (74HC165N) to increase the > outputs....
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Re: Reprap Arduino Due Shield project - looking for helping eyes.
Looks like my thread has been hijacked LOL. But nevermind, it's all good info. Too busy with work, and I'm too lazy to check the forums... I think the point of having fuse today is not preventing the...
View ArticleRe: Reprap Arduino Due Shield project - looking for helping eyes.
Great to see another variant that will run on the Due. Having more than one design IMO will be a good thing. BTW: In case you missed it, Adrian Bowyer has firmware out for the Due. It's most likely...
View ArticleStep pulse polarity settings w/ common firmware?
Short question: Is there a way to change the polarity of the step pulse from normally off, pulse on briefly, to normally on, pulse off briefly? Background: We are getting ready to add an new stepper...
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