Dorkmo Log
Thursday 20, 2013
drew a rough sketchup of the lathe. going to redo motor mount. [File:Lathe1.skp]
found this sprocket openscad thing on thingiverse http://www.thingiverse.com/thing:7918
Tue Jun 18, 2013
Download DXFs of the 6 parts here - these are 6.26 bolt spacing for these bearings - and DXFs have been corrected for 3/4" bolt holes, meaning 3/4" + 1/16" for CNC torch allowance. File:GeardownDXF.zip
- went back to the basics and cut out intermedate shaft and using a quick attach module style mount.
- requires very large sprocket to achieve desired ratio
- need to change chain cover to accomidate flange bearing bolts sticking through.
DXF Files of Component Plates for Simple Geardown
Sat Jun 15, 2013
See also Geardown Concept. Download folder of Sketchup files- [1]
added some detail
- bolts for flange bearings
- had to shift some things around to account for tighter space
- added QD bushing for 1-7/8
- changed a couple mounting bolts to frame
June 8, 2013
Needs discussion of how size can be made more compact.
https://docs.google.com/file/d/0BwxMMqGvwTM-RjJxVGNUVm90aVU/edit?usp=sharing
added to the model a mount style with QA facing opposite direction from before
- shortened distance the 2-15/16 bearing hangs out
cleaned up some of the mounting and case holes
- not sure about where the best places are to have mount holes
June 7, 2013
https://docs.google.com/file/d/0BwxMMqGvwTM-N1piZlVIaGtqUXc/edit?usp=sharing
started modeling the chain and sprockets.
- looking for collisions
- taking up as much slack of chain in design as possible
June 1, 2013
Design Sprint - Dozer Geardown