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Sheet Metal Brake and 3d Printer.
S. Heslop:
Aha that's good to know. Justifies the huge printer then!
Kind of a shame though since filler and paint was part of my plan to make some parts in the future. But from what i've heard of ABS it's a real chore for large parts.
ddmckee54:
Is there an accepted definition for a "Large" 3D printed part? If so what is it?
Don
S. Heslop:
--- Quote from: ddmckee54 on September 12, 2018, 02:35:25 PM ---Is there an accepted definition for a "Large" 3D printed part? If so what is it?
Don
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I don't think so, and it's part of the problem I had trying to find stuff to look at just going through google. Those huge novelty 3d printers and bogus grant projects suck up alot of the attention and search results.
WeldingRod:
I'd classify "large" parts as bigger than about 6" in the longest dimension.
As for finishing large parts, it's a function of "how pretty" and "how often". If you make an acetone vapor unit for your largest part, then you can make a big improvement quickly. I've done that on parts up to about 6" tall; I printed a riser tube for my rice cooker and covered it with Aluminum foil tape. There is a special epoxy resin for filling the grooves, but I haven't tried it yet. The attached photo has a cat hole about 8" tall, mostly finished to fully smooth with a file. Each side was probably an hour worth of filing.
Sent from my SAMSUNG-SM-G891A using Tapatalk
nrml:
--- Quote from: S. Heslop on September 07, 2018, 12:04:22 PM ---Another look at gumtree and this has come up. And only this.
https://www.gumtree.com/p/printers-scanners/3d-printer-anycubic-kossel-pulley-assembled-with-auto-level-sensor-/1312934735
Not about to rush out to buy the first thing that appears, and i'm not super psyched about delta machines, but doing a quick read suggests its a RAMPS1.4 based thing. Which along with an arduino, 4 stepper controllers, and 4 of the cheapest motors on the one website I was looking at comes to just about £100. That'd also not be including a power supply or the whole extruder deal. Hot ends look easy enough to make with a lathe. So I guess that asking price isn't too riddiculous, but I still don't think it'd be Massive Savings over buying the parts. Especially since I don't think that machine itself looks very good.
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I have a half built Anycubic Kossel - linear rail version. I have swapped the hotend for a genuine E3D V6, the 12V power supply for 24V, the bed heater for a 240V SSR controlled unit and the control board for a duet (old version - not the wifi one). A lot of these parts were gathered over the years for various other projects and are being re-purposed.
It doesn't ooze quality but like most cheap Chinese kits if you upgrade the parts and assembly process judiciously, they can turn out quite good. I love watching delta and Corexy assemblies move. I find them very elegant in comparison to Cartesian assemblies, so I couldn't resist when I saw them being sold for less than £200 delivered last christmas.
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