new hotend, all set

README.md

@@ -2,5 +2,5 @@
 
 A hotend / extruder for FDM machines. 
 
-![gg](log/2020-12-10_print-head.jpg)
+![gg](log/2021-01-24_hotend.mp4)
 ![gg](log/2020-12-06_gluegun.png)
\ No newline at end of file

log/gluegun-log.md

+## 2021 01 24
+
+This part works, new toolchanger feels good also. 
+
+![he](2021-01-24_hotend.mp4)
+
+![squeeze](2021-01-24_hotend-squeeze.mp4)
+
+![print](2021-01-24_hotend-print.mp4)
+
+## 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. 
+
+![gg](2020-12-27_glue-gun.png)
+
 ## 2020 12 10 
 
 Assembled one of these, have some hardware bugs but will continue to bring this online instead of revisioning: