Just cut my motherboard out of sintra. Is this an acceptable material for this or should I use 1/4 mdf?
It depends on how much weight you choose to put on it… if you keep it lightweight, Sintra should do fine… There is such thing as an aluminum laced Sintra foamboard called Dibond, and that works perfectly! Look it up! The New Hampshire GBs used Dibond for their Hello Kitty and St Patty’s Day packs…
Maybe you can refer to my Studio Creations build thread?
I also used plastic sign board to make my motherboard. However, I cut two more “motherboards” that would fill the inside border of the shell, and used plastic epoxy to between each layer to stick them together. The mounting brackets are bolted on the inside, so it’s actually attached to all three.
Does that make sense?
Hi. Looks great.
Could you tell me the measurements for your sc-mobo?
I do want to be a contributing member of this community, so please don’t get upset when I say no, but it’s for good reasons!
A. Weakest reason… I don’t want to take my pack apart in the near future. Better reasons follow!
B. I’m pretty sure, depending on how you prep your shell, each mobo might be a little different. I’m not 100% on this, but I went through a couple sign boards before I was happy with mine. If I had a perfect template, maybe that could work. Which brings me to…
C. Although it looks good overall IMO, it’s not a perfect perfect fit. Sign board is pretty flexible, so the inner mobo and brackets need to be kinda forced into place. You can do a better job than I did. I’ll tell you what I did.
D. The point of a Sharpie is quarter/half a centimeter or so from it’s edge. So, I exploited this to trace my mobo. After I completed putting together my shell and reinforcing it with fiberglass, I put the shell down on the sign board. Then straight down, using the length of the pen as a guide, I added points to each corner and “point of interest”. Once that was complete, I used a ruler to combine the points together. Then using Stefans mobo blueprints as reference, I rounded edges and added details. A lot of it was done by eye.
I hope this is ok, and you’re not upset with me. Your SC mobo can be done better then I did.
Good luck!
More than ok. No worries. Thanks for the diy on the mobo and I’ll use your tread when I put mine together [emoji4] Your tread is a great contribution in it self. I’ll just wait with the mono until later, when my packs outline is finished.
“B” nails it. I want to produce SC motherboards for the community, but the way the shells work I’m convinced that I could not offer a mb that would work with everyone’s shell once they put the two halves together. Better to build your shell and cut one out of mdf or lighter 1/8" plywood.

