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3D Printing for Suckers
Manxmodder:
--- Quote from: awemawson on December 16, 2015, 07:21:22 AM --- :lol: Bonkers :lol:
And I thought it was only me doing silly things like that :ddb:
--- End quote ---
Nah! We're all guilty of it in varying degrees :loco:
OZ.
Arbalist:
That's the first truly useful thing I've seen printed :thumbup: but will it last? :scratch:
AdeV:
Cracking work Gromit Joules, and further proof that 3D printing has a definite niche to fill in the machining world - short of making a fancy die and casting your plastic, 3D printing must be about the only way to get that sort of shape.
Time to start saving the pennies & casting my eye around the workshop for some (any!) spare space to put such a machine...
Joules:
Cheers guys,
good question Arbalist, they last a lot longer than I initially ever thought they would. I picked up a cnc router several years ago and it had been used for cutting carbon fibre. The CF had worked its way into the Delrin leadscrew nuts and since the leadscrews are 1m long they sag and this had helped eat out the lower part of the nut. This in turn meant I could only run the machine in that axis at a couple of hundred mm/min before the leadscrews started bouncing and resonating. Along came the first 3D printer and I started looking at what my options might be. Can't removed the Delrin nuts, flushed them out when I got the machine as best I could.
I looked at making some dampers to push the leadscrews back up into the not so worn area of the nuts. It worked :thumbup: I can now run the machine at 1500mm/min if needed and no resonance.
I just checked the date I printed these and it was end of May 2014, the parts are as good now as when I fitted them. We also printed some spares to leave around in oil and other stuff, a year later they were also fine. This is of course my favoured PLA, that you hear all the myths about it being prone to bio-degrading, hygroscopic etc. Nope, not had an issue, my thinking was I would just print new ones every few months. Never needed too and they show virtually no wear or scoring on the leadscrews, that was one of my early success projects in printing.
So how long do printed parts last, depends how well you design and print them.
Arbalist:
Nice job on the dampers, clever idea.
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