Hoffman Amplifiers Tube Amplifier Forum
Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: Ed_Chambley on February 14, 2012, 09:06:07 am
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I ordered some blank material from Doug to make my own boards. Will they cut well on a table saw. Do I need to tape the cutting area to keep them from crumbling on the edges?
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Use sharp 60 tooth (or more) carbide for clean cut. No need to tape the edges. Crosscutting is no problem. When I ripped some boards down to 2 1/2" width, I used double sided carpet tape to fasten the fiberglass board to a longer sacraficial 'carrier' board just for safety. You'll probably want to hit all the edges with sandpaper.
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I've been using a (diamond) tile cutting blade in my table saw and miter saw, works great.
I bought 2 at a big box store for less than $20. One was thinner than the other and after 4/5 cuts it couldn't handle the task. The heat got to it and the blade started to wobble very badly. In the trash it went!
How ever the 2'nd blade is about twice the thickness and I've had no problems with it. There has been no need for taping the board, perfect cuts with no binding because there's no teeth to chip or grab a hold of the board.
If I had a tile wet saw I'd use that.
Brad :icon_biggrin:
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I have a wet saw as well as many carbide saws as well. Thanks for the info, I think I prefer sanding to getting wet, but if I don't get the results, I will get out the old wet saw. Thanks for the reply, I was wondering it the board had a tendency to split. Obviously not.
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I use an ordinary hacksaw & go thru that board material in nothing flat. Faster than I can set up my table saw.
With respect, Tubenit
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Jigsaw here.
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Hacksaw in a mitre box.
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I use a table saw to rip it the long ways and a jigsaw to cut it across the 3.125 width
60 tooth carbide blade in the table saw and a 24 tpi bi-metal bit in the jig saw
The edges are a bit rough and not square and so it's off to the sanding machine
I have a 48" bench mount belt sander that I use to sand the long edges
It also has a 9" round disc that I square up the short edges
Then all the egdes get some hand sanding with 150 grit or finer sandpaper to smooth them up and shape them
I also sand the top with 220 to give it a matt finish