To Mark's point most of the controllers used with 24 and 48 steppers used in the TruTrac and Vixen DD systems are limited to 16 or 32X speeds. Many Vixen owners ask me if they can use OnStep goto with

#EQ5 #esp32 #bluepill

Nicholas, The reason to go with a modest (at most 10X) gearbox reduction is to get greater torque and better angular resolution. But 90.25 with a 3:1 pulley is excessive reduction. And the resolution

#EQ5 #esp32 #bluepill

If you go with micro stepping you may be better off going with 0.9 degree steppers. I am worried about the loss of incremental torque of my 36 Ncm steppers, and compared it with 65 Ncm 1.8 degree step

#EQ5 #esp32 #bluepill

It depends on what you're planning to do with the telescope. If its for visual use only, you can use gearboxes. If you want to do astrophotography, its better to use bigger motor and microstepping, an

#EQ5 #esp32 #bluepill

I have built and largely tested a Bluepill but still need to finalise the steppers for an EQ5. I have a couple of 1.8deg nema8 motors with pg90 gearboxes which have more than enough torque to do the j

#EQ5 #esp32 #bluepill

In such a case, I think I'd just rather replace and solder a new ESP32 board, which I've got pending a delivery tomorrow.. To be honest, I've actually had these disconnects quite rarely in the past ev

#esp32

Andrei, Thanks for the clarifications, esp regarding the power/current history. Since the problem happens with virtually no current draw it suggests a logic circuit problem. I would then shine the fla

#esp32

I will lower the current to the steppers though I've tried this before with even lower values when this whole mess started, like 300 - 600 and sure they do work, not so much torque but they hold / run

#esp32

I use the TMC5160 as well, and never saw them heat up. Remember that you should set IRUN per the following: Motor current in amps X 1.41 x 40. So for your 1.7A motors, IRUN should be 959, or even less

#esp32

Andrei, Drop your IRUN current down. I suspect you are overheating the drivers. Yes, I know, they are supposed to be good for over 2 amps. But your problem is typical of something that is overheating.

#esp32

In my experience , 9 /10 times the issue is related to stepper driver. In your case ,the fact they became hot, is an other clue of stepperdriver malfunction. Try to remove both of them and see what ha

#esp32

Yes that's interesting. My 5160s barely get warm.

#esp32

Guilherme , thanks for reply. Yes it's the standard model he builds now with the black metal case all around. After inspection it looks like Instein uses the entire metal case as a large heatsink. The

#esp32

Having washed my mount with the backyard irrigation myself, i'd suggest you look at connectors and IC sockets for dew damage causing some short circuit. If your Instein comes in the metal box like min

#esp32

It is just a power on indicator led. It will always be on, no blinking, etc.

#esp32

My thought exactly. Of course I got to this conclusion after ruling out everything else peripheral. Unfortunately I know of no way to test the ESP32 board for some kind of internal problem. Best bet i

#esp32

The fact that it worked before and is not anymore makes me believe something on the board is going bad.

#esp32

Forgot about that: - Tested with 12V 5A and 24V 5A both AC 220v- 12/24v power supplies . The 24V one is brand new. The 12V used for over a year with no problems.

#esp32

Try a better power supply

#esp32

Hello dear group, After reading the whole internet for a gazillion times, I've finally made an account to take up this discussion on the onstep group here. I'm quite happy to be here and thank you in

#esp32