www.KitGuitarsForum.com
http://www.kitguitarsforum.com/board/

Movin on up to bending with a heat blanket and controller
http://www.kitguitarsforum.com/board/viewtopic.php?f=4&t=8077
Page 2 of 2

Author:  tippie53 [ Sat Mar 04, 2017 8:15 am ]
Post subject:  Re: Movin on up to bending with a heat blanket and controlle

what I use is a VSI switch
this is not a resistor but allows control of the voltage by short bursts at full power. I can control the voltage withing about 2 degrees and that is good enough for bending wood. I also use a cooking thermometer so I know the heat of the blanket at the point of bending.
When I first started I had a pid set up and still lost sides at the upper bout. Once I started using a thermometer I found that the heat could vary depending on heat load and wattage. I now only use and sell 5 watts per in blankets . I also learned to check the moisture.
Water can act as a refrigerant . I always place the probe between the slat and the blanker. The VAR setting on the controller comes in after I attain my heat usually about 325 to 350 F then use the 15 min at 220 to 250 F to release the water and set the bends.
A router speed controller is the same thing

Author:  Bob Gleason [ Sun Mar 05, 2017 1:40 pm ]
Post subject:  Re: Movin on up to bending with a heat blanket and controlle

The blankets that John sells are made in the U.S., high quality, and backed by a warranty. I have seen blankets delaminate. Don't clamp directly to the rubber on the blanket and don't let a lot of the blanket hang over the end of your mold. If they run wild, without the heat sink that the mold makes, that's not good for the blanket.

Author:  Bob Gleason [ Mon Mar 06, 2017 11:26 pm ]
Post subject:  Re: Movin on up to bending with a heat blanket and controlle

I think that no matter what kind of temp checker you use, as long as you use it in the same way, your experience will soon lead you to the right path for your set-up. I use, and really, like those little mechanical surface temp gauges that Stew Mac sells. Since I sell parts and supplies myself, I'm always tempted to see if I can buy the product directly from the manufacturer. I did that with those units and the company said no problem, as long as I buy them in 1000 piece lots. Another million dollar idea shot!

Author:  Kevin Sjostrand [ Mon Mar 20, 2017 12:44 pm ]
Post subject:  Re: Movin on up to bending with a heat blanket and controlle

Got my heat blanket and tried it out. The thing heats up muy pronto and hold the temp with in a fraction either side of the set point. I like it!!!

Author:  phavriluk [ Wed Apr 05, 2017 12:54 pm ]
Post subject:  Re: Movin on up to bending with a heat blanket and controlle

Digging around, I found a 5x30-inch 110v Keenovo heating pad 750 watt - - - that sounds like it fits guitarmaking nicely. Any ideas from anyone about using a pad that size instead of the usual 6x36-inch pads?

Author:  Kevin Sjostrand [ Wed Apr 05, 2017 5:19 pm ]
Post subject:  Re: Movin on up to bending with a heat blanket and controlle

Should be plenty wide enough except when you place some bindings in along with a side you are bending, then you may not get heat evenly. The length should be okay as that is plenty long enough to heat the areas of the side that are going to bend. I almost ordered one just that size as it was about half the price....

Author:  phavriluk [ Wed Apr 05, 2017 5:54 pm ]
Post subject:  Re: Movin on up to bending with a heat blanket and controlle

Simultaneously bending bindings with sides...in the future. Appreciate the response. Time to order. Now to deal with temperature control.

Much obliged.

Author:  tippie53 [ Thu Apr 06, 2017 6:17 am ]
Post subject:  Re: Movin on up to bending with a heat blanket and controlle

the Kenovo is a 2 1/2 watt per inch you should have a 5 also they are not warrantied . I tried one and it failed after 20 bends

Page 2 of 2 All times are UTC - 5 hours [ DST ]
Powered by phpBB® Forum Software © phpBB Group
http://www.phpbb.com/