can someone tell me the cost in one vs the other? what about quality of castings,as well as how the surface texture comes out? kelly,i know you are doing the lost foam so your castings look great.
Initially, the sand printed molds were pretty coarse because of print layer thickness. I understand some will allow you to specify finer print layers for a price. Prices have come down with more available sources now. You basically pay one time processing and foundry fees and then pay by the cubic inch of mold volume.
Assuming you have a decent CAD model, it should be fairly easy to get a quote.
I lost foam cast because I can control all processes and do so completely under the roof of my modest shop. I do detail the foam patterns for better finish and appearance. I'd say my finish is better than then the average printed mold and casting quality on par with other sand casting processes since I use virgin ingot and have developed my molten metal management processes over the years, but it's taken effort on the latter, whereas it should be second nature to an established foundry.
Being retired and casting as a hobby endeavor, I'm fairly selective about what I take on, mainly within the Ford and Inline carb realm, but freely recommend 3D sand printing to those inquiries that I pass on.
Being YouTube discoverable, I get a lot of people that come to me with nothing more than an idea for a particular engine combination. That's basically a little more than a hand full of smoke because all the dimensional interface, reverse engineering, modeling, and programming are the majority of the work required before a casting is born......then there is the finish machining....
Best,
Kelly