THIS DESIGN IS OBSOLETE - Please see my "V2" re-design:
VERSION 2 posted here!
http://www.thingiverse.com/thing:1064124
_UPDATE!_** _I have finally received my new 'countersunk' magnets and 10mm threaded steel balls... So I now have all the parts necessary to complete my re-design of this kit!!! I am working on the new design and will be uploading the new design soon - I haven't decided yet whether to replace everything here, or to just create a new 'thing'... Either way, you'll be able to find the new 'kit' from this link... ;-)
That's all for my update right now, LOL!_
_Back to the existing comments for the 'current' project..._
These are the objects I'm creating to upgrade my FolgerTech Kossel to Magnetic attachment.
**_*Unfortunately*_ This project isn't turning into much of an 'upgrade' as the magnets just don't hold as well as they should. (And these are *SUPPOSED* to be "N52" grade neodymium magnets.) It may just be that the gap is too much between the magnet and the ball bearing. I tried to minimize it to just .1mm, but for some reason, both Cura and Slic3r insisted on putting 3 or 4 .1mm layers in there... And .I haven't found a way to make that smaller as of yet. So for now, I extended my original 'Traxxas' ball-joint arms by ~70mm (for ~300MM total now) and re-installed the ball-joint setup into my printer.**
**If you have any tips on how to get that gap down to a single .1mm layer, please let me know**
**In the mean time, I'm probably going to re-think my design and put the ball bearings on the rods and mount 'dish' magnets on the effector and Carriages. (v1.5?)**
**Acually... V2 posted here!
http://www.thingiverse.com/thing:1064124**
**Anyways, back to the notes about this 'thing' now...**
One thing to note is that it doesn't support the original servo-mounted micro-switch bed leveling. I changed to FSR Bed leveling. - A link to the kit that I bought from eBay is included in "Parts Sources" at the bottom of the Instructions.
The Effector fits the "E3D V5 Clone" that came with my printer. I just bought a Genuine E3D V6, so I will be creating an effector for that as well, but for now, this one is tailored towards the V5 and/or clones.
**UPDATE** *Everything seems to fit quite well, but I may need stronger magnets...*
Ok, well these parts are working, **but the magnets aren't holding as strong as I think they should.** I think that either my gaps between the magnets and ball bearings are too big ***or*** my magnets aren't quite strong enough (They're SUPPOSED to be N52 grade, but I doubt they are, as the 6MMx10MM ones seem stronger than the 10mmx10mm ones -- *stupid cheap Chinese magnets!!!*).
So if the printer moves too fast, or the print head gets bumped, they come un-done relatively easy.
But, they ARE working, and I'm producing some nice accurate prints, but I am printing a bit slower than I was before (I'm trying a 60mm/s print now, and surprisingly', it seems to be doing quite well. (But I was printing at close to 200mm/s with the stock Traxxas rod ends. - albeit a little lower quality, but it could handle it!)
**Update: The 60mm/s print failed as one of the magnets disconnected mid-print.
So I think I'm going to have to re-design this upgrade, as printing *SLOWER* was certainly not my objective...**
jartz
