Sorry for the double post…Google+ still hasn’t finished processing my video and it’s been 11 hours.
This is my new auto bed leveling setup I printed for my Prusa I3. I’m using the hot end nozzle to touch the bed which activates a micro switch instead of my previous setup which had a servo lower the micro switch into position. So far everything seems pretty accurate. I printed a test cube and got the same results and accuracy as with my solid mount. The main reason I went this route is that I want to be able to have an interchangeable hotend so I can switch from Bowden to direct and also have a spindle setup for PCB drilling and with the servo being offset, each time I took the hotend off and put it back my z offset was a different value. With this setup I can set my Z offset for my main hotend and then mechanically adjust the others to match. http://www.youtube.com/attribution_link?a=diZr95VGvq0&u=/watch?v%3DjgPdCYmwDmQ%26feature%3Dshare
Yes I am. I am making a few modifications to make it easier to assemble. So as soon as those are done and tested I will post the files…most likely this weekend.
@Steve_Graber , got this idea from you; and mentioned it to @Mike_Smith ; he made it in a day or so.
Only downside I can think of is that the Z motors don’t turn off at this point; but as long as the driver isn’t overheating, I don’t see why that’s a big problem. Or even a little problem.
What kind of switch did you use? You cant really tell in the video, but are you using the tension of the switch to keep the hotend stable or a spring setup?
It’s a micro switch I picked up at a local supply warehouse. It had a lever on it but I took it off. I do have a spring that is keeping pressure down on the mount. It’s under the bolt that is sticking up on the left side.
Great job on the design. I was wondering if you had some stls available? I would really like to test some hotend bed leveling out and this is the best implementation on a Prusa i3 I’ve seen so far. Thanks
i was wondering if you could send me the STL files for this and the extruder your working on, i would love to test these and give you feed back on anything else you could do to improve the designs. also i have had issues with the MK8 hobbed gear on direct drive setups for 1.75mm filament, i find the raptor drive gear from QU-BD to be better on 1.75mm filaments
