What however was clear is that the feet design I made earlier wouldn't fit with the backplate. The quick fix was to stretch the top flanged diameter a mm to also take the backplate. (This won't take the extra thick washers that were on the machine.) The front feet base diameter section then also stretched a mm to keep it all 'on an even keel'.
The feet were then printed on an FDM machine in polyurethane rubber (Ninjaflex). Printed again by Martin's Hub via 3DHubs. He's got the machine settings for this material pretty much perfected by now and it prints very clean and to correct size. The printed feet snap right in the outer frame.
To create feet that will also take the washers to create some space between the backplate and bottom of the frame would take just some extra stretching of the CAD model. It does make the whole machine sit a bit higher. Judging the height of the machine from the rubber pads on the case base, it can't have been that much higher than this. That would make the original rear-feet design have a very thin base, almost have it sit on the case base. Oh well... :-)
The 3D model (Sketchup) for the adapted feet and the STL files are on Thingiverse here. If you've got one of these typewriters with dodgy or non-existant feet, highly recommend getting some new feet. For a machine without backplate, of course just manufacture a set of four 'front feet'.
(Another small mystery that remains is why the '29 backplate has a small hole at the rear-left of the machine. Surely the Remington Portable #2 doesn't have a shift-release prod?)
Thank you very much, Robert! Wonder if I could modify the file to recreate feet for my Erikas...hmm. Kind regards,ReplyDelete
Yr welcome :) Good luck and hope your #2 comes out great! ('lands on its feet')Delete
Don't know Erika's; not sure these'd stretch, but just sketching something and trying a print or two should be good :-)
I wonder why they (sometimes) added that back plate. I don't really see its function.ReplyDelete
And it's a fairly large part too (cost). Could be said it protects the mechanism? Of course it is a good display surface for advertising the company wordmark! :-)Delete
(Much like the logo's on the back of the laptop screen.)
Hi! I found your blog searching for replacement feet for my Remington 3B. The files on Thingiverse don't seem to work anymore. Can you re-upload them somewhere? Many thanks!ReplyDelete
Should be fixed now, tnx for spotting!Delete
Congrats on your 3b, quite rare these. Hope these feet fit the 3b. It won't have the extra back-plate; my guess is that a set of 4 of the 'front high' feet may be a good match. Good luck!