The Shop > Metal Stuff
Lost PLA bronze casting of the Beatles - Abbey Road
RotarySMP:
Hi Madmodders,
I took a week off my mini-lathe project to cast a statue for my Beatles fan wife...
My Lost PLA technique is pretty rough. I need to watch more of Jeff the veg oil guys videos, and sort out the details, but it was well received, even with defects.
I made a video of the whole thing here:
Joules:
These must be the Yuk, Oh No prints....
10 out of 10 for the volcano model.
Mark, when you need to join PLA parts for casting, consider welding them using a very fine tipped temperature controlled iron. I use the same tool I used to use for waxing when we did lost wax castin, do it like Tig welding using some filament as filler rod, you can then work the PLA back to blend in. Likewise never use a pigmented PLA always use natural, no residue left behind and you can easily see your welds using a bright light behind the model.
RotarySMP:
Thanks a lot for the advice. I didn't even think about welding it. :doh:
That oil burner is a bit of a temperamental beast. The home made needle valve is not perfectly concentric, so it goes low-high-low-chernobyl! A little too much, and it is like one of those tractor drag racers.
Have you ever tried spraying the part with clear coat to smooth it? I saw it in this video,
and was wondering of you know if there is anything special to look for, or just cheap rattle can?
I'll buy some more clear filament.
We went to the Yoko Ono exhibition in Krems a couple of years ago. Her art doesn't work for me. at all.
Mark
Joules:
Can't help with advice on coating prints for casting. I have used sanding sealer for some commercial pieces and then wet sanded them. For casting I would be tempted to just wet sand the PLA, time consuming but you get out what you put in. I did change to a 0.3mm nozzle a few years ago and get much better quality prints, less work needed to get a good surface finish. You do pay a penalty in print time, wish I still had contacts for casting these are interesting times.
RotarySMP:
Good point. I am still on a 0.4 nozzle, and printed with 0.2 layer height.
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