3D Printed Lost PLA Casting - Troubleshooting

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3D Printed Lost PLA Casting

Local 3D printing enthusiast, Bob Cartwright created this great video that we wanted to share with the 3D printing community to help in troubleshooting the 3D printed lost PLA casting method.  -Thanks Bob!

For those using castable resin, here is the recommended burnout process



VIDEO TRANSCRIPTION:

"I have a little project. A fellow YouTuber by the name of Fran Blanche is making an Apollo AGC DSKY display. An exact replica if she can. And she's having a bit of a problem with finding components and there is some small connectors that are non-existent I guess now because it’s 1960s technology.

And it sparked my interest in casting very fine pins and stuff. So I went to my local 3d printer here, it’s MatterThings in Pincourt, Quebec. It’s the only one in Canada and I'm fortunate to have it in my area. And I was going to have a pin, a set of pins made and in one part try and cast it.

But José there said well just use the raw material and we'll see what comes out of it. And I also had a newer product made, a pin made out of a new product. It's from Formlabs and they use the Form 1+ resin 3d printer.

It's a liquid and it prints in reverse which is kinda interesting, instead of a wire feed or plastic wire feed. I think the material is methacrylate photopolymer resin. I’m reading from a little cheat sheet.

Anyways, let’s see if I’ve had a successful casting. This is the second time I’ve tried it and the first time it was a total failure, total disaster.

Let’s see what I got. Well failure #1. See I was trying to have the aluminum flow down here. The plastic has melted out. And I’ve just put in a plaster paris casing so it would not take on the rough appearance of the sand casting.

That’s #1-failure. Let’s try #2. Looks like another failure. We got some partial melting, but it failed to go through. Not looking good. Failure #3, three-for-three. Here the material didn't even melt. This is the resin, 3d printed resin.

So I’ll have to try a different technique again to try and get this. The first time I tried the pieces horizontal with spruce coming in from each side, but it didn’t flow. And I was trying gravity feed and with a small, there was wax down here to make a small cavity for the overflow. But well that didn’t work.

So until next time guys, I’ll do some more experiments and keep you informed.

This part is still good, so I might be able to recover. It's just a support structure that was from a another printed part." -Bob Cartwright

 

MatterThings Inc. - 3D Printing
514-312-6060
www.matterthings.com
3d@matterthings.com

Faubourg de L’Île Shopping Centre
101 Boulevard Cardinal-Léger
Pincourt, Québec J7W 3Y3
Canada

1142, Rue Marie-Anne Est, Office #22
Montreal, Québec H2J 2B7
Canada

 

 

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