Mike Kelly's Solenoid Auto-Level for Stock R1

You did a lot of weird things to that firmware. I suggest starting over from mine and only changing the values in esteps

 

I did do a complete overhaul of my robo a few months ago. It's a corexy printer now. That's probably the other changes in the firmware you see. Changes should be esteps of my z axis and extruder, uncommented "enable corexy", upped the print area, and probing grid.

 

@Mike Kelly,
I am building your chimera only x carriage and was wanting to add the solenoid probe. Do you have a mount designed for this setup?
Or do you think it would be okay to build a mount off of the 3 holes circled in the picture.

Thanks Josh

 

Yup those are the holes I used to mount mine.

I drilled some holes on one of my chimera v6 heater blocks so they could be oriented in the same direction. Meaning I could use the same design for both chimera and cyclops. Though I also have a design somewhere that uses just the opening of one so you can mount them in the orientation like your picture.

 

@Mike Kelly i have just finished hooking up this upgrade, i am having problems getting the solenoid to function i have attached some images of the wiring to confirm it is correct

the red on the lower leg of the mosfet is to pin63
black between diode and mosfet is solenoid
one red after diode is for solenoid other is for 5v from volt step down
top black goes to ground pin next to p63

from the diagrams i have found this is the correct location for pin 63.
i have tried the M42 P63 S255 gcode and still nothing.
with a meter i do not seem to be getting 5v off of pin 63

Thanks Josh

 

That wiring looks correct.

If you flash to a stock firmware can you tryp M42 P63 S255 again? You should be reading 5v from pin 63 to ground

 

Just reflashed the previous firmware I was using with my e3d and auto level, using the m42 p63 s255 I still have no voltage coming from the ramps board


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Can you try a different pin and see if you can enable it?

 

I tried a different pin, still nothing, I also tried a spare ramps and arduino board I have and could still not manually get the solenoid to drive from the ramps board.
The spare ramps board had a jumper pin on the circled pins in the pic.
My other board didn't have it so I removed it, could this be causing any issues

Josh

 

I'm kinda stumped on this. The M42 command really should give 5v output from the pin. If you plug the signal pin directly into 5v the solenoid triggers right?

 

Just got back into this, when I plug the signal pin into a direct 5v pin the solenoid works fine, I just don't seem to be able to get the digital outputs working. I have a fan extender on the servo pins and it works fine


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Can you measure directly from the arduino?

 

So I plugged the trigger wire into d4 input and it worked first go, I did wire the switch on the nc contacts so I need to swap that over, but I should have it working in the next couple of days.

Thanks for all your help Mike.

Josh

 

I've put together a new design for a hybrid extruder and worked your solenoid into it. The solenoid seems to work fine when probing, it does the whole grid without a problem. But when it actually prints it hit's the bed at the front, but is over 1mm too high at the back of the plate so it's off on the Y-axis. I've tried upping the probe grid to a 4 point grid but that's not helped. And I've tried printing with cura to see if that helps (i usually use matter control) but it's the same on there too. Any idea what's happening?

 

what do your G29 results look like?

 

I've not tried this before so let me know if I've done it wrong. I just ran G28 and then G29 T and got the readings. I ran it 5 times and the numbers don't seem to change much each time. And i put it back to a 9 point grid.

Thanks for the help

 

The devation between Y10 and Y200 only looks to be about .5mm, so not much. Though your X deviation is much larger, 2.3 or so. Do a paper leveling and see if that helps

 

Thanks... Erm, how do I do that

 

Put down a piece of paper and make sure the nozzle is the same height across the X

 

Oh, thought it was a technical term for something . I've done that now and kept re-running g29 until it was as even as possible on the x axis but it's still the same. It's like it reads the bed correctly but doesn't take it into account when it starts printing like it's supposed to. I've added a picture to show how far off it is at the back and how it hits the bed at the front.