LitePlacer.com forums

Hi Kvide, Would you care to elaborate on why this: I would say that it is all about smooth movement ... implies this ... so I'm definitively not going to use unbraided UTP/STP Cat5/6. ... for the small motors on the Z&A axes? Specifically for STP Cat5 which is shielded cable and always twisted (...

I'm sure you've already done this, but for anybody else reading, you definitely need a "pneumatic capacitor" in the vac line in order to get usable readings from the ADC. Malte explained how here . So i'm not entirely sure on how this works. I understand that the capacitor would build up ...

Well then.

You'd just need a motor for rotating the plate around, you could use a silicone kitchen spatula or squeegee mounted to a frame for the spreader. It's actually really hard, kinda like how making a one-off bespoke windshield wiper is really hard -- go ahead try, it won't be nearly as good or reliable...

I found a video of exactly the kind of dip-fluxer I've been trying to make (link should jump to 0:29 where they demo it): https://www.youtube.com/watch?v=ECBTjZPoki8#t=0m29s Obviously this think costs scads of cash. Has anybody seen any sort of more reasonably-priced device that might be pressed int...

As a note on this, I forgot to mention the ST L6470 - http://www.st.com/web/en/resource/technical/document/datasheet/CD00255075.pdf Wow, no joke; thanks for pointing out that chip. Yeah, that's pretty much most of the features on my "gee why don't stepper drivers do X" list. Digital curre...

Mark Harris wrote: Have you tried lowering your driver current?

WayOutWest wrote: I have my A-axis motor current set really really low; after the first one died I made sure it was always just barely above stalling level.

Besides Adam's fork of the software, It's not a fork of the LitePlacer code; it's all written from scratch in Java+C (except the FireSight+OpenCV libraries that I use). Just need to correct that so I don't get even more people asking me for patches. I love the liteplacer, but I think the choice of ...

I can't find any good mounting plates for NEMA8 and NEMA11 motors, even after looking high and low. Anybody know where to get these? All I could find was mount plates for Actobotics' proprietary imperial-units-based system, ugh. Pololu.com has excellent NEMA14 mount plates, and the lower set of hole...

By the way, the more I read about how steppers work the more surprised I am that the driver chips don't do more-clever things like thermal measurements using at-rest resistance (using a low-freq signal to ignore impedence from the windings' inductance), missed-step detection from back EMF, digitally...