I ordered the new miniPCB on easyEDA last thursday and it arrived on Tuesday! Nice looking job. And cheap as - 50c each plus $16 postage so worth ordering a few. Question - if using tmc2100s on the ne

One question about the miniPCB. The ethernet RJ3 socket. Is it supposed to go all the way down onto the PCB, or is there supposed to be a gap for the RP1 resistor network. I assumed the latter as the

I've put together the v1.27 miniPCB with TMC 2100s. I've got CFG1/2/3 at GND/open/open for 16 microstep spreadCycle mode. I'm using polulo 1209 stepper motors (2.7V 1A). Just waiting on some pulleys t

Yes, they look like the heatsinks that came with the TMC2100s. The heatsinks are just warm when I park it with the APP. I've got a temp probe somewhere, maybe I'll measure it. And I just got some TMC2

I suppose the temp is probably OK. A temperature probe right down in the heatsink says its 62C when using a 12V supply and 70C with a 24V supply (both using Vref = 0.75V which seems to be enough to av

Charlie A question about how you wired up the TMC2130 on the minPCB The SDI pin on the 2130 is usedas it connects via the J5/10 jumper AUX1/2-M3 But what about the other control pins SCK, CS, SD0. Sho

Maybe this question is redundant given the development of the config files that is happening, but I just don't understand why there are 3 commands for the stepping mode. #define AXIS1_MODE_OFF #define

Thanks Howard. That makes sense to even me. I have been using the beta, so will have a look at the alpha – but the config generator doesn’t seem to make an _SPI mode for the 2130. I probably wouldn't

Ivan Mine works fine in southern hemisphere. I'm using bluetooth and stellarium. I setup first with the onstep android app. Follow Howard's instructions below and on wiki, e.g. set your lat/long locat

I connect to stellarium scope http://welshdragoncomputing.ca/x/index.php/home/stellariumscope/download-stellariumscope Then connect that to stellarium

I got an EQ5 mount with some sort of NEMA14 stepper motors that was missing a controller. You couldn't ask for a better buy to do onstep. I've built the mini PCB (currently using TMC2100s) and have in

That would be a good section or thread to have !! Be useful to see other builds

No answer required. Was easy to pull apart and inspect. A spring loaded washer had cracked. The metal bits which broke off damaged the coil wires. Oh well. A good excuse to use some newer/better stepp

Maybe this problem is because I bought cheapo ebay TM2130s, but I can't source the proper ones in Australia. I've got the miniPCB built, running the current alpha version via bluetooth, with polulo120

Khalid I used the configuration generator. It came up with DRIVER_MODEL TMC2130_VQUIET AXIS1_MICROSTEPS 64 AXIS1_MICROSTEPS_GOTO 1 This came up with an error saying I had to have same u Steps or use _

On Wed, Jan 31, 2018 at 05:47 am, Chris Vaughan Howard I'm using alpha version. And correct stepper numbers 1 and 2 for the two motors - it was a typo in the post. I'm now using the configuration gene

Howard For my testing of the alpha "on the bench" . Used alpha version, with miniPCB VQUIET #define AXIS1_DRIVER_MODEL TMC2130_VQUIET #define AXIS1_MICROSTEPS 32 #define AXIS1_MICROSTEPS_GOTO_OFF ditt

Pedro I'm also motorising an EQ5. Still waiting for some gt2 pulleys. I will either end up with 2.5:1 on these, or 3.75:1 if I can fit in the larger pulleys. Like you boxed controller! Chris

If I change to 256 (and don't change StepsPerDegreeAxis etc) both tracking and slewing are much slower. And change to 8, both are much faster.

That's starting with the following, which seems to work well in tracking & slewing #define StepsPerDegreeAxis1 6400.0 #define StepsPerWormRotationAxis1 16000.0 #define AXIS1_DRIVER_MODEL TMC2130_VQUIE