Gallery, Projects and General > The Design Shop
3D Printed Quorn Tool & Cutter Grinder
Joules:
No reason at all, my only concern PC/ABS mix, the ABS. You're using it, admittedly in a blend, above ABS working temp. Since ABS already stinks the place out off gassing, that is going to be worse at higher temperatures. What happens to the ABS component at those higher temperatures ? Bit like brass loosing its zinc, not sure I am happy getting a lower PC temp by burning off more ABS.
BaronJ:
Seasons Greetings Joules,
Nice work. Watching with interest.
Just a comment: You might find that the perspex bar is not truly round.
Joules:
Cheers Baron, your spot on, but then my 3D prints aren't truly round in the bores :lol:
I wonder if you can get ground and polished glass rod in 25 & 30mm diameter, would have to forget the spiral on 30mm glass, unless an angle grinder disk could put the groove in :scratch:
(no I am not being serious, but...)
Joules:
Norman, much learning taking place. I am just sat here :scratch: my head over why this part I just printed is undersize on only one surface. Sorted, it was a combination of me cleaning up the inner surface on the thimble and the wheel being spot on. I think I will reprint the wheel than my painted thimble. (too much sherry and mince pies)
At the end of the day, it's printing what we get, see what the problems are and work round, wait for someone else to try and make a better job :thumbup:
It's plastic, you can tweak it with a hair drier :bugeye:
Joules:
Today was finish off the micrometer handle and thimble assembly. I had intended to use a pair of ball bearings as friction pads, but when I went looking for them I couldn't find any. Right, another printed challenge. My machine is only rated to 0.1mm layers, so what the hell. I printed two friction pad/buttons at 0.05mm layer and they worked. I wasn't sure how they would turn out, but they are good. They have the profile on the top that the thimble has on its inner surface. Maybe I could have increased the pad size by not just making them fit the cross hole and opening out the area over the hole. But for now they work.
What I have found though, is when I assemble this and have no access to the spring once the threaded shaft is in. I can't untension the spring to release the thimble, I can live with that as it's not going to fall apart any time soon.
The completed assembly. I'm very pleased with how this worked out and can see me making more of these for things like microscope stages and other machine adjusters. I guess each one can be printed as a set of parts in just over an hour.
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version