WH6, what radius roundover bit for 1/4" ply

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Seth
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WH6, what radius roundover bit for 1/4" ply

#1 Post by Seth » Wed Oct 28, 2020 9:59 pm

What size roundover bit is appropriate to use with 1/4" BB ply? Want the edges to be as "soft" as possible. Is a 1/4" radius bit too much?

Just the outside edges and port/hand hole. Don't want to bullnose the mouth.

Thanks guys :thumbsup:
Build in process - 2 WH6, one Alpha 6a loaded, one PRV Audio 6MB250-NDY loaded

Two 2x6 shorty SLA Pro's
One T39, 16", 3012LF loaded
Tall AutoTuba, 20" wide, 2x 8" MCM 55-2421
TruckTuba, 8½" wide, 2x 8" MCM 55-2421

Grant Bunter
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Re: WH6, what radius roundover bit for 1/4" ply

#2 Post by Grant Bunter » Thu Oct 29, 2020 4:50 am

Hey Seth,
Rather than a round over, I'd be inclined to Aris the wood (ie knock the edge off with a plane) then sand to suit.
Far to easy with 1/4" ply to take to much with a round over, and it's hard to put back again...
Built:
DR 250: x 2 melded array, 2x CD horn, March 2012 plans.
T39's: 4 x 20" BP102 , 2 x 28" 3012lf.
WH8: x 3 with melded array.
Bunter's Audio and Lighting "like"s would be most appreciated...

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Bill Fitzmaurice
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Re: WH6, what radius roundover bit for 1/4" ply

#3 Post by Bill Fitzmaurice » Thu Oct 29, 2020 7:20 am

Even using a 3/8" radius only reduces the minimum cross section at the joint by 1/16". A 1/4" radius doesn't reduce it at all.

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Seth
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Location: Sacramento, California, USA
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Re: WH6, what radius roundover bit for 1/4" ply

#4 Post by Seth » Thu Oct 29, 2020 12:19 pm

Thanks guys. Much appreciated :thumbsup:
Build in process - 2 WH6, one Alpha 6a loaded, one PRV Audio 6MB250-NDY loaded

Two 2x6 shorty SLA Pro's
One T39, 16", 3012LF loaded
Tall AutoTuba, 20" wide, 2x 8" MCM 55-2421
TruckTuba, 8½" wide, 2x 8" MCM 55-2421

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