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Smoothieboard and Smoothieware, see also http://reprap.org/wiki/Smoothieboard and http://reprap.org/wiki/SmoothieBoard#Smoothieboard.
A5984/A4982 and APFD mode (Is ROSC grounded on a v1 smoothie?) - 5 years ago
Nebbian in the Delta forum has a theory that the "tree ring" patterning seen on delta printers might be due to the drivers missing a step at the transition from slow to mixed decay. I was looking over the A5984 and A4982 datasheets, and they have a mode called "APFD" which is turned on by grounding ROSC. This should keep the driver in mixed decay. Based on the schematic on GitHub, Smoothie vby aaronH - Smoothie
Re: Removing vertical lines on prints - 5 years ago
The A5984 drivers (used on Smoothie v1) has a special mode to overcome that skip shown on Nebbian's chart. called "APFD". we can apparently turn it on by grounding ROSC. I don't know if Smoothie configured its boards like this, I'm checking now. Has anyone tried it?by aaronH - Delta Machines
Re: Delta printer ball joints, let's talk! - 5 years ago
"they are very heavy for my purpose" Ah, I think you saw the steel ones. They have plastic, this is what I bought from SeemeCNC: Super light, far lighter than magnets. I found a set of 360 mm arms (my delta is big) but there used to be a few people offering aftermarket cups that fit these balls.by aaronH - Delta Machines
Re: TMC2130 SPI Stepper Driver and Smoothie - 5 years ago
Related question: how to handle the hardware side of moving to external steppers? I have a original smoothieboard using the onboard drivers in a delta. works great, love the smoothieware config, but its loud. I recently picked up some TMC 2208's for my Prusa clone, and I was amazed at the difference it made in that printer. Silence! Beautiful prints! I now want to do the same for my deltaby aaronH - Smoothie
Re: Delta printer ball joints, let's talk! - 5 years ago
I am no expert, but I have been tinkering with joints for a while. My first machine (2015) was a Geeeeeeeeetech G2 a mini delta that used brass/steel rose joints. They had play, and not a great range of motion. I used it to build a 400mm x 1000mm big guy. On the big guy I tried magnets, but I never could get them to work. the machine would shake them apart. probably a bad design on my part,by aaronH - Delta Machines