Hoffman Amplifiers Tube Amplifier Forum

Other Stuff => Cabinets-Speakers => Topic started by: Fresh_Start on July 03, 2018, 11:24:08 am

Title: Curved Cabinet Corners
Post by: Fresh_Start on July 03, 2018, 11:24:08 am

https://youtu.be/vpQYWVopHrw (https://youtu.be/vpQYWVopHrw)


The crescent shaped biscuits are a cool touch IMHO.


And no, I don’t know how many pieces of plywood you ruin until you get the depth of the kerfs right...


Chip

Title: Re: Curved Cabinet Corners
Post by: Ritchie200 on July 03, 2018, 07:18:29 pm

That was cool stuff.  However, I get the feeling like this isn't his first rodeo.  That was some serious crafting!

Jim

Title: Re: Curved Cabinet Corners
Post by: jjasilli on July 05, 2018, 10:00:23 pm

True that.  One issue is that the outer laminate layer may crack over time.  I know of 2 other ways. 


Rip a number of side pieces, with angled sides, say 22.5 degrees, and piece them together for a curved side.  I saw speaker box plans in a 1950's magazine for this. 


All over Pinterest is another technique; it helps to have a CNC machine.  Make a template to rout out the footprint shape of the box on 3/4" Baltic birch plywood or MDF.  Cut a number of these shapes, stack & glue them.  E.g.:  https://arstechnica.com/civis/viewtopic.php?f=53&t=1292661&start=80

Title: Re: Curved Cabinet Corners
Post by: G._Hoffman on July 12, 2018, 06:03:00 pm

Kind of the cheap way to do it.  You'd get much better results laminating veneers around a form.  Not much point, though, if you are going to cover it with Tolex - just cut the corners with a big router bit.  Or, if you want a radius really big, use a spindle shaper.  You might need to reinforce the corner, of course.


Gabriel

Title: Re: Curved Cabinet Corners
Post by: TIMBO on July 13, 2018, 02:08:33 am

Thanks Chip, Got me thinking about rehousing an amp.
(https://i.imgur.com/ROxf7dF.jpg)
(https://i.imgur.com/cN94bLQ.jpg)
(https://i.imgur.com/JGW4Zw8.jpg)
This is a cigarbox guitar amp and I was keeping it in the rustic theme.
I been trying to sell it but no takers.
So curved retro edges might be more appealing.

Title: Re: Curved Cabinet Corners
Post by: shooter on July 15, 2018, 11:30:42 am

Quote

might be more appealing.

the youn'ins might like the knobs n such in the front  :laugh: