Are you concerned about having active (read: giving off heat) electronics in the scope tube? I am not sure it is on much concern but I would guess heat (electronics, driving the motors) would generate

Khalid, I don't have these drivers on hand but I am deep enough in to look into ordering some. I would also want to look into what changes are needed on the circuit board. Stay tuned....

Khalid, Thanks for your help. I just went through the process of testing a number of 4.x versions with my system...in sort of a binary search, backing my way from 4.16 which worked to the present vers

I think I may know what the problem relates to. Specifically, the AXISn_DRIVER_MICROSTEPS_GOTO setting. When I was having the rapid track problem with 4.21d, I had the: AXIS1_DRIVER_MICROSTEPS set to

Martin Bonfiore <marsbonfire0@...> 1:06 PM (3 hours ago) to me I recently upgraded from 3.16 Release to Master 4.21d, primarily to get the spiral search feature. At one point I believed I got it

For some unknown reason I am not getting the needs >= 4.7 message and spiral is working. I have no clue why since It went from fail to working without changing anything. I am starting to question my s

The wifi had not been reflashed to the latest version...so I just completed that and sorry to say, I am having the same problem i.e. Android is reporting the spiral search needs 4.7 or later. To troub

Ohhhhhhh....no I did not reflash the WiFi board. Didn't think of it as possibly connected (no pun) to the problem....will do this morning. Totally expect it is the root cause of the problem. Thanks!

Finally got hold of an Android tablet to control Onstep...very nice! I noticed the "spiral search" selection, but when I try to invoke it, I get a "requires Onstep v4.7 or later". I had just installed

A possible approach is friction clutches set with enough friction to slip during normal motor driven operation but less than what will cause damage to the gears/drivetrain. Clutch friction material ca

I had an interesting thought this morning regarding the need for the 10K series resistor. Note: strictly conjecture. As I read the STM32 literature, they mention that the GPIO pins can be set with int

I would appreciate it if you could measure the voltage (on a powered, problem board) across either your 10K resistor or the 100K when powered and the programming jumper set to the nominal 3.3V positio

My guess is that the connection via pin 9 and 10, though they are "signal" lines do have voltage on them and, are actually driving the STM32....to a degree. Enough to actually make a small voltage app

I described use of a DVM (voltmeter) with an input resistance of 1 megohm. Virtually all DVMs should meet or exceed that value (I think 10 megohms is fairly typical)....so I was not intending to speci

All of this begs the question why the resistors in the first place and not a direct short? Two possibilities come to mind. One is that,when the jumper is in place it is possible for something else to

I am finding this "replace R3 with 10K" discussion mighty curious. I apologize if my musings have been covered ad nauseum before...that is what the delete button is for... Based on my calculations and

I am not sure of the logistic difficulties or whether you would consider it but have you thought of mailing the problem STM32 to someone in the group who has lots of experience and success in getting

Could someone explain what is intended by offering the two settings? Compatibility Issues with different stepper drivers? Are different drivers sensitive to pulse step input pulse width variations?

https://www.samuraicircuits.com/MediaWiki/index.php?title=Doomsday_Clock_Shield_Resistor_Arrays For those who are having trouble sourcing the specified resistor array, making your own out of discrete

If there is enough real estate you might consider laying out board for either resistor array or discretes. There used to be dip resistor arrays that may be reversible...may not still exist in today's