Has anyone had any contact with @Scott_Marshall in the last couple of weeks? I’m still trying to get the limit switch function of my brand new ACR board working and I suspect it’s got a solder bridge somewhere, but I have been unable to reach Scott via email or phone for over a week and don’t know if he’s out due to his health issues.
The problem is as follows:
I’ve confirmed that both homing switches are normally closed. The behavior I’m seeing is that Y homing always works as expected, however X homing only works when the Y homing switch is NOT triggered. I confirmed this electrically - the Y homing output on the ACR is low when the Y is not triggered and high (+5V) when triggered. But here’s where it gets weird - the X homing output on the ACR is low when neither limit switch is triggered, but high if EITHER X or Y homing switch is triggered. I’m wondering if there is a cross connection on the ACR board, but don’t know where to look.
Mechanical switches. It’s been a few days so I don’t remember exactly, but I checked both switches with a meter and they seemed to work fine. I’ve got to go back and see if the 5V limit outputs on the ACR work differently than the 3.3V set that come off the level shifters. I’m trying to figure out where a short could possibly be for Y to affect X, but for X not to affect Y.
Hooray, I figured it out! As I said in my OP I knew it wasn’t a firmware config or homing command issue because I had verified the problem electrically with the machine off - just checking continuity with a meter. What I discovered was that the ACR might be plug and play for some version of the M2, but not mine - the pinouts on the limit connector are different. Here’s a picture of both. The way the plug connected to the ACR board had the common wire from both switches plugged into Y instead of GND. I rearranged the pins in the connector and now the machine homes correctly.
I am still concerned that Scott has been out of contact. There are some other things he was supposed to send me, but since I got things working I can deal with that. I’m more concerned for whether his health problems have sidelined him.
Hey @Steve_Prior . I’ve been working with Scott on his website & there are many more things he was wanting to add up just a while back, but even I’ve been out of contact with him for a while. I’ve tried to get in contact also with no luck, so I have a feeling his health has pulled him out of the loop again. Hopefully nothing too serious & we see him again soon.
The last email that I had from Scott was on the 12th. His health issues were getting progressively worse and limiting how much he was able to do. His regular Doctor had been out of town. They were wanting to put him in the hospital but he was trying to resist going.
Thanks @Mike_Mauter . Last I’d heard from him was 10th. Hopefully things are not too bad for him & we’ll hear from him the near future. He’s a great guy, an asset to the community & wealth of knowledge on a variety of topics.
yeah, @Steve_Prior I’m in the same boat. Last I talked with him he was wrapping up my Smoothie ACR for my laser upgrade. But he was saying the docs were trying to put him in the hospital. I’ve sent him several email since… no response. Hopefully all is okay with him.
@Steve_Prior Unfortunately I haven’t heard from Scott still. We did all of our contact via email, so other than that I have no way of finding out if he’s okay.
@Steve_Prior@Yuusuf_Sallahuddin_Y That’s too bad that no one has heard from him. I’ve been waiting on the ACR upgrade for quite a few months now. And I would prefer to buy from him. As he’s been such a great person for the community. guess I’ll continue to hold out until at least the new year.
@tyler_hallberg Did you recently order through the website? Unfortunately I cannot reverse anything regarding payments (as I don’t have access to Scott’s payment methods), however I will make a note on the main page & mark all items as “out of stock” temporarily until we can hear from Scott. Apologies from my end, I totally didn’t even think of that.
Edit: It seems that all items have been marked as out of stock on the website by myself since prior to Scott’s mysterious disappearance. In this case, have you received your items Tyler or are you referring to some other stuff?
