Quote:
Originally Posted by Eric H
John, how on earth did you make that mold? It looks incredible!
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Thanks. I took measurements from the 10" bezel and used the radius from the datasheet for the 12VP4 CRT. I drew the cross-section that I wanted and then a friend drew it up in SolidWorks. Another shop has a new employee and they thought it would be a good training/learning experience for him. It's not a simple part even for CNC. He learned a lot and I gained a part. The risk for me was having to possibly keep replacing material if there were problems.
So, I really lucked out. I only had to pay for material. Our own shop is way too busy to even think about doing anything personal. Especially this complicated. I'd probably have gotten in trouble for even asking.
I was looking at having a rapid prototype company do it, which would have cost a fortune, when this opportunity came up.
The polishing I did by hand using micro-mesh mx and wet sanding it through all the grades, then using Mother's aluminum polish. I was worried that it wouldn't work as well as Simichrome or Wenol polish, but it seems to work as well.
John