## 2021 02 03 NEXT REV: you've mounted the hotend static, and the motor floating post-loadcell. However, loadcell deflection is really minimal, and you could fix the motor / mount the hotend on loadcells. This would let you touch-probe the bed w/ the nozzle itself, for zero calibration etc. ## 2021 01 24 This part works, new toolchanger feels good also.    ## 2020 12 27 Revisioning this to bring it up to speed with toolchanger deltas, also found a new loadcell to suit the smaller toolchanger design, that's UXCell PN `a15110200ux0247`. So I've to revision to tighten this up, but it should be pretty straightforward. I think I do this, then fab it all, and can bring loadcell probes in to the mix once I have two of these swapping pretty well... would love to have i.e. an 0.8mm infill tool and 0.4mm perimeter tool. - adjustment for smaller loadcell, - adjustment to hotend pinching clamshell - rm interference between hotend / bowden top and loadcell - more-better planar constraint on hotend / coolside / front-of-hotend clamshell Great, this is done, so I'll fab and then bring heaters & loadcells online.  ## 2020 12 10 Assembled one of these, have some hardware bugs but will continue to bring this online instead of revisioning: - could use a third thru-bolt to get the planar constraint w/ the second half of the hotend-pinching clamshell - loadcell to bowden connector does not clear (visible in CAD: move out or move up) - m4 head-thru on top of loadcell on hotend not wide enough - more pusher-part (extruder / top half) clearance to plate, notice misalignment / out of squareness at loadcell mount ## 2020 12 06 Did a bunch of development for this thing offline.  It's E3D hotend compatible, I'm using a Dragon hotend. Has a loadcell inline to measure extrusion force, hotend fan but no part cooling fan yet, etc.