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silksock Regular user 105 Posts |
Need advice to the best way to mount plexiglass to a metal flange to make a table top? Any help would be great. Thanks
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Bill Hegbli Eternal Order Fort Wayne, Indiana 22797 Posts |
You should make a flange piece depending on the size of the flange. Usually 3 or 4 inches square. Place exactly in the center of the Table Top, on the underside. You have to use solvent to glue it in place. Then you can use screws or screw and bolt if you want to have them show on the top of the table. With added work, you can use T-Nuts as well. The hardest thing is finding short 1/2" screws in number 10 if you are using a regular flange. As you did not give much info what you already have. The ends of the table top, if you are cutting it yourself, the edges have to be melted by a Plexiglas expert. Otherwise, you can sand the saw marks off and leave it white color. When cutting and sanding, cover the top and bottom with paper and masking tape, to keep the top from getting scratch marks. It will take a lot longer, but you can keep sanding using higher grit sandpaper from 600 to 1000 grit. Then start using Plexiglas polishing paste until you have clear edge. Plan on a week of sanding by hand. Power tools will not work well for Plexiglas.
I would use a piece of leather to use a s gasket for the flange, so it will not mark the table top. This has been my experience, but others may have better solutions. |
Michael Baker Eternal Order Near a river in the Midwest 11172 Posts |
I have 2 Plexiglas tabletops (3/8" thick) that were given to me recently. They each have a metal pipe flange mounted to the bottom with short machine screws. One has screws with wider heads. The other has smaller heads, but also has washers so they can be used on the flange holes.
Research online showed me that you need to first drill pilot holes, but will need a Plexiglas bit, or a regular steel bit that has had the point reground to work. (Regular bits will crack the Plexiglas.) Drilling needs to be done slowly, with time allowed for the drill to cool. Otherwise you will melt the hole, rather than drilling it. The screws should then be heated so they melt threads as they are screwed in. https://www.youtube.com/watch?v=t-1qACxKVGg You should test a few methods on a scrap piece of Plexi. If you plan to drill completely through for any reason, be sure to back the workpiece with a scrap sheet of Plexi, as this will help prevent chip-out on the back side (exit wound).
~michael baker
The Magic Company |
silksock Regular user 105 Posts |
Thanks for all of the help...
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