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Main => Woodworking => Topic started by: matt4949 on November 24, 2013, 07:33:15 pm

Title: My $58 Acrylic/Polycarbonate 90 degree bending machine
Post by: matt4949 on November 24, 2013, 07:33:15 pm
OK, Here it is. Took about a day to build. I can bend sheets as large as 32" wide.
PARTS
2 Hinges                             $3
1 Heat Strip                        $ 46        http://www.ebay.com/itm/BRISKHEAT-BIH051040L-BIH-HEAVY-INSULATED-HEAT-TAPES-1-2x48-/331028469562?pt=LH_DefaultDomain_0&hash=item4d12d5973a (http://www.ebay.com/itm/BRISKHEAT-BIH051040L-BIH-HEAVY-INSULATED-HEAT-TAPES-1-2x48-/331028469562?pt=LH_DefaultDomain_0&hash=item4d12d5973a)

2 sheets 3/4 MDF 2'x3'        $ 9
Nuts and Bolts                     $ 0 (stole em from work)
Title: Re: My $58 Acrylic/Polycarbonate 90 degree bending machine
Post by: matt4949 on November 24, 2013, 07:37:31 pm
Thank You Selfie and Thank You Rodney for your advice and inspiration. It came out better than I expected.
Title: Re: My $58 Acrylic/Polycarbonate 90 degree bending machine
Post by: ChadTower on November 27, 2013, 03:04:29 pm

Pretty cool.   :applaud:
Title: Re: My $58 Acrylic/Polycarbonate 90 degree bending machine
Post by: Generic Eric on November 27, 2013, 03:09:21 pm
Looks neat.

How does it perform on  angle greater than 90º?  Could it make a 90º with a larger radius?  Looks neat.
Title: Re: My $58 Acrylic/Polycarbonate 90 degree bending machine
Post by: matt4949 on November 27, 2013, 05:03:39 pm
Quote from: Generic Eric on November 27, 2013, 03:09:21 pm
Looks neat.

How does it perform on  angle greater than 90º?  Could it make a 90º with a larger radius?  Looks neat.
I can set and hold an angle from about 15 to 110 degrees. It makes a very tight radius. I was hoping for a little more rounded  radius than I got. The 90 is pretty square. I had to make some adjustments to the spacing of the heat strip to the plastic. I found about a 1/4 inch of space best and no touching what so ever.
Title: Re: My $58 Acrylic/Polycarbonate 90 degree bending machine
Post by: AlienInferno on November 27, 2013, 07:41:34 pm
Good job building the bender. I built one myself using a similiar heating element. Never would I have thought about making the folding work table. I just bend mine with the edge of a table.

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