EPAIII
Diamond
- Joined
- Nov 23, 2003
- Location
- Beaumont, TX, USA
Making your own bezel and the hot chip problem suggests that glass crystals may be a better choice.
But then, to make the idea complete, you would need a 3D printing stock that both melted in the printer and did not melt with the hot chips. Or, since this is a metal shop forum, just make the bezel from metal. Aluminum and brass come to mind. There's a nice challenge to your shop skills.
Another idea for a heat proof bezel would be to 3D print one and use it as the pattern for a mold. Then pour a heat resistant plastic or silicone material or even a metal like aluminum in the mold for the final bezel.
Since you want to make everything yourself, there are many possibilities.
Aside: They make all kinds of 3D print filaments. I wonder if they will ever come up with an optically clear one and a way to print with it with optically flat surfaces. I know; I dream. But what the heck, in my life I have seen TV cameras come down from the size AND WEIGHT of a refrigerator to small enough for my cell phone to have four of them in it and they aren't even the main components of the cell PHONE. And then there's computers: all I can say is wow. Dreams do come true. And I sit here typing this on one such dream.
But then, to make the idea complete, you would need a 3D printing stock that both melted in the printer and did not melt with the hot chips. Or, since this is a metal shop forum, just make the bezel from metal. Aluminum and brass come to mind. There's a nice challenge to your shop skills.
Another idea for a heat proof bezel would be to 3D print one and use it as the pattern for a mold. Then pour a heat resistant plastic or silicone material or even a metal like aluminum in the mold for the final bezel.
Since you want to make everything yourself, there are many possibilities.
Aside: They make all kinds of 3D print filaments. I wonder if they will ever come up with an optically clear one and a way to print with it with optically flat surfaces. I know; I dream. But what the heck, in my life I have seen TV cameras come down from the size AND WEIGHT of a refrigerator to small enough for my cell phone to have four of them in it and they aren't even the main components of the cell PHONE. And then there's computers: all I can say is wow. Dreams do come true. And I sit here typing this on one such dream.
One other alternative that is simple but not nearly as elegant as removing the bezel and forming a crystal as was thoroughly lined out by Jim Rozen in earlier posts to this thread, is to simply 3-D print a snap-on bezel to hold an acrylic or polycarbonate replacement or add-on crystal. I did printed one first for an inexpensive pressure gage that gets banged around. That worked so well that I made a couple of add-ons for indicators that often have hot chips fall on them melting into the crystal. With the add-on crystal, I'll just pop off the plastic bezel, put on another acrylic crystal cover, and be back in business in no time. This is not a fix that most would want for the Interapids and such. But it is quick and dirty and actually add a little protective bumper (that could get in the way) to the gage.
Brief video of printed bezel
It took about 5 minutes to CAD draw the file for this bezel. It is parametric so that its diameter takes just a click to change. Printing took about 20 mins. Material cost is pennies.
View attachment 384225
These cheapo indicators see hard duty in my shop. A little extra bumper and a sacrificial crystal is a plus.
View attachment 384226
These bezels were printed in PLA which is pretty durable stuff. As is they are very stiff and would be difficult to collapse a strong grip I could also have printed them in PETG which is even more robust but PLA was already in the printer.
Denis