Re: Let's talk Kerfs (curving your foam)
Posted: Mon Mar 12, 2012 6:32 pm
you do have some curves going on there! but that is a really cool looking tear!
or t n ttt for short (tnttt.com)
https://www.tnttt.com/
Martinup wrote:Hi Swampjeep:
Thank you so much for the tutorial on foam cutting. I have some compound curves to deal with and this bit you posted is exactly what I need. See the pic below. But what I really found the most interesting is from you basics on forming arcs out of foam I can expand on this to create a compound rear hatch detail.
[/album]http://www.tnttt.com/gallery/image.php?album_id=2412&image_id=88722[/img]
I am still getting the hang of posting pics into my posts . . . so if it doesn't come through you can see my album to see my build pics and all the compund curves I am dealing with.
Cheers,
Martin
GPW wrote:What about cutting the foam into strips and glue them on like a canoe ??? . Going to be skinned like one eh ?
wagondude wrote:The skin issue could be solved with stretch fleece like the audio guys use to build those cool looking subwoofer boxes. Then you wouldn't need cuts or pleats.
Bill
Treeview wrote:This:
http://www.oneoceankayaks.com/smallwin/stripcalc.htm
http://www.woodworkingspecialops.com/page2.htm
KERF-CUT FORMULA
1. Take the Outside Perimeter of the
radius and subtract the Inside
Perimeter. This gives the amount of
frame to be removed.
2. Divide this amount by the thickness
of the saw blade. This gives the
number of saw cuts.
3. Last, divide the Outside Perimeter of
the radius by the number of saw cuts.
This gives the distance between
saw cuts.
cpinetree wrote:That sure looks like a great place to use spray foam, like used in attics.
Likely not very cheap, but it sure would come out perfect.
Just staple some plastic on the inside, spray the foam, let it expand and cure, and file/sand/rasp it smooth.