How we bending cutaway guitar sides 

Thank you for a question. I don't use a disc sander for the backs, I just measure and then sanding it down by hands until back will fit.

Probably, google it

Thanks. The most curved part will stay pretty much the same, but ends will spring back a bit. To avoid spring back action, heat up the side 2-3 times and keep it in the bending mold until wood has cooled down completely.

@@StapletonGuitars ... What do you mean by "heat up the sides 2-3 times..."? Please explain. Thank you kindly.

​ @electricwally So you start with bending the wood by turning the heater blanket on, then the heater will auto turn off when it reaches 160 degrees Celsius; and here you wait for around 15 min. Then turn the power on again & then off. And then one more time (the 3rd time) - if needed. The idea is to get rid of the excess moisture from the wood.

@@StapletonGuitars... you mean each time I turn the heat back on it must get back to 160° celsius each time before I turn it off?

@@electricwally ...that's right

Hi, that was a Grand Performance body size.

Thanks.

Silicone Rubber Heating Blanket

Hi, yes it is, and here is a video how to make one: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-VcyEtnedlUs.html