Quoted from jimwe5t:I’ve purchased numerous items including the Atomic Pile and one things for sure, its a “pile” of something alright. One airball hit and it was toast. 3D printed items don’t last long in a pinball environment. Rocks around batmobile, also ball destroyed. Stern’s stock atomic pile is so much better lit and functioning as well. The lure of the show atomic pile is strong, but save your money and stay with Stern’s stock and you’ll be glad you did. Modcouple 3D printed items are not very good quality wise, even though they try hard to make them nice. It’s not their fault, but issue is with 3D printing, even though they have some cool designs usually. Grandpa Munster one airball only destroyed him. Don’t flush your money down the 3D printed junk hole. There is a reason Stern does not do anything 3D printed.
The 3D printing isn't entirely the issue, but in this case, as it's made as one piece there, the horizontal print lines leave an easy break point.
If I use my upcoming Stranger Things set as an example, the much thinner railings are printed on their side and assembled afterward, leaving vertical print lines (lines visibly removed with prep, primer, three paint stages, and clear). The vertical print lines make it so balls can repeatedly be thrown at the railings with no issue (if that diameter were printed with horizontal lines, it would easily snap...vertical, and they'll take any air ball).
It's been a learning process for me, but 3D printing does have advantages over resin mods, and vice-versa. I've done clay sculpt/resin as well (IJ PoA rails), and prefer 3D printing for a few reasons--one of the main ones being precision when it comes to consistently fitting within fractions of a millimeter.
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Otherwise, my brief interaction with Yelobird/Dave was very positive. Hopefully all is well.