Gallery, Projects and General > The Design Shop
3D Printed Quorn Tool & Cutter Grinder
nrml:
I've been pondering the tightening mechanism options ever since you first mentioned them and I wonder if a taper bush system like pulley mounts on motor shafts might work in plastic / polycarbonate. Large thumb screws (possibly printed ones) would enable fairly quick adjustment although it wouldn't be as quick as with a single locking point. But would that be a reasonable trade off for more even pressure distribution?
Joules:
Not so great results from last nights prints. The top layer delaminated when I removed the print from the 3M tape I print it on, it just gripped too well, maybe I also had a problem with high humidity considering the weather. Next snag, though not unexpected, the numerals and graticules are almost lost in the noise. They have printed too small and surrounded by ripple in some cases I have 3 10second marks !!! So not a roaring success, but the rest of the print has turned out OK
The fit of parts is pretty well spot on, a tight fit for the triangular key. Once I weld it in and seal the edges, the top will get a coat of sanding seal to smooth it and keep the dust from working its way into the surface.
nrml, with hindsight I should have started just printing tubes and fasteners to work out what worked best and sizes to accommodate the various fits, but where's the fun in that. I have also learned that thick wall prints don't have the same tolerance as the thin wall stuff I normally print, but overall it does seem consistent so I can work with that.
nrml:
Igus are doing a 3D printing filament for motion applications. I thought it might be something that might be useful on this project. http://uk.rs-online.com/web/p/3d-printing-materials/8686895/
Joules:
Nose back against the grindstone, so personal projects have ground to a halt. Thanks nrml, I have seen the Igus filament BUT, at £265.20 kg I will stick with PLA (£20.00 kg) and if needed machine Delrin inserts. The Igus offering is great for the big boys, but being a little fish I would just buy in whatever size sleeve bearing they make and design around that.
hanermo:
Fantastic thread !
Great work.
I am very interested in actual results.
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