I like that idea. Mind has a track on the inside, but the only thing keeping it in is the tension from the pipes. This seems like it’s a good idea too.
And Ryan, if you want to use any of my ideas, you can pay me in free design work. You’ve got quite a few credits already built up.
You all can send me a bill and I will get to it in the order received as soon as I get winning lottery ticket.
You know me I can not leave good enough alone, I have a head full of ideas for both cnc’s (even the zenxy). I want to make them better.
I wonder why M666 works for some people and not others.
I did have to enable EEPROM in the dual endstop version of the firmware before it would work.
It should work as flashed.
Hmmm, I will check again Wed when the new batch of boards get here, maybe I somehow changed that.
Wow!!! love the tracks using the big box off the shelf parts!!! I live for alternative uses for parts that can be picked up any time at almost any big box store. Amazon and eBay are worthless when its 9pm Friday night and, like me, waiting for UPS or the mail to maybe show up Monday morning just does NOT cut it!!!
Anyway now that the Holidays are over and the pressure is off to get gifts made I’m going to go ahead and give the dual end stops a try.
Looking forward to the headache! Other than what has been laid out in this thread are there any resources that might help one get through the process of figuring it all out and working through the kinks with a little more ease?
I’ve got my dual Endstops working perfectly now.
Things to watch for/consider from my trials…
Make sure EEPROM is enabled.
Set one stop a little back from the other so software can adjust for you.
Use fixed, not adjustable stops. Just easier to make them.
Use M500 to write the M666 X and Z adjustments to EEPROM so they are there the next time you start it up.
Make sure your axis’ track repeatedly. That’s why I added the tracks to move.
The eeprom can be a headache, remember to clear it if you change firmware. I am a little surprised it doesn’t work without it (at least until a restart).
Whenever you write something with M500, also change your config file, or you’ll forget what you set it to.
Is there a dual endstop firmware available for the mini rambo with the lowrider somewhere? Also, Can a touch plate still be used? (I believe the Y max would still be available, can marlin firmware support that?)
No you need to make the edits yourself, this is not common as there are hard stops built in.
Yes, but you would still use Z min. It has nothing to do with dual.
I thought the mini was one driver short of being able to do dual endstops?
It can do dual on one axis.
I realize this is an older tread. Can someone tell me what these rails are called in Greg Sherwin’s post? I have some, but not the connectors. I think they would work really well. Currently working on a MPCNC. [attachment file=86059]
Tom - Those rails are Unistrut.
Greg,
Thanks for the quick reply. I picked up my stainless tubing Friday, it cost more to have it cut, so I bought 40’ welded seam for $120. It will be enough for both builds. Just started the assembly.[attachment file=86078]
I have just about everything working with my dual endstops. My movement is all working properly. When I home X and Y they home properly. When I home my Z positions only the side with the Z Max (right side) moves but the one on the Z Min (left side) doesn’t move.
All of the Steppers are working correctly for “Movement” using my touchscreen, it is only the one Z stepper when Homing that is not working.
I am using a MKS GEN L V2.0 board with a MKS TFT 28
Any Suggestions? I was thinking I tried just about everything with the config settings but maybe I missed something. I also hooked in a MKS GEN L V1.0 and was seeing the same issue.
What does M112 say?
Oops, meant M119
