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Re: Another idea from the sketchbook ...

PostPosted: Sat Feb 25, 2023 12:10 pm
by twisted lines
An old test on 1.5" cut twice, three 1/2 vs bent pretty well till it didn't.

Re: Another idea from the sketchbook ...

PostPosted: Sun Feb 26, 2023 6:02 am
by GPW
TL, Great idea !!! 8)

Re: Another idea from the sketchbook ...

PostPosted: Sun Feb 26, 2023 9:57 am
by twisted lines
GPW wrote:TL, Great idea !!! 8)

I thought that two cut's may work, but when I pulled to see how eazy it may be to glue :thumbdown: The outside pre cuts? don't help

Yesterday I got 2 7/8" pink foam.
If today goes better then yesterday all I need are two tips
At just the right place; & the smoke from the same :thinking:

May be leather gloves and some, foam handles.

Re: Another idea from the sketchbook ...

PostPosted: Sun Feb 26, 2023 10:26 pm
by pchast
Did you bend the pieces together or separately and then glue. I think you may find if you restrain the ends of the piece you're bending it will better conform to the curve. I've used that making wood forms with sheet metal binding the outside.

Re: Another idea from the sketchbook ...

PostPosted: Mon Feb 27, 2023 8:05 am
by twisted lines
pchast wrote:Did you bend the pieces together or separately and then glue. I think you may find if you restrain the ends of the piece you're bending it will better conform to the curve. I've used that making wood forms with sheet metal binding the outside.


Only a 4’ wide cut test, while playing with it; pulling to test how to glue, snapped it. That piece is only squeezed like that.

Re: Another idea from the sketchbook ...

PostPosted: Wed Mar 01, 2023 2:24 pm
by twisted lines
Is cutting the other way any better where the snap lines are?
The concrete is on top!

Didn't help :frightened:

Re: Another idea from the sketchbook ...

PostPosted: Sun Mar 19, 2023 9:05 am
by twisted lines
I thought cutting the foam would be the hard part.
I think the bearings went first, day's & still not done :frightened:

Re: Another idea from the sketchbook ...

PostPosted: Mon Mar 20, 2023 4:56 am
by GPW
Just a note : When bending foam to the extreme , the outside of the bend is most venerable to cracking (Tension) . So the easy thing to do is put some kind of tape on the outside , even cheap packing tape will take the tension loads and prevent cracking while bending . Fiberglass tape while more pricy works the best ... Even with kerfing' , tape works !!! ;)

Re: Another idea from the sketchbook ...

PostPosted: Tue Mar 28, 2023 2:58 pm
by twisted lines
The 4' rule tells all, forward is the 10 lb'r
Behind it inside; 15'.
If you measure like a boat, within inches :lol:

Re: Another idea from the sketchbook ...

PostPosted: Fri Apr 28, 2023 10:15 am
by twisted lines
GPW wrote:Just a note : When bending foam to the extreme , the outside of the bend is most venerable to cracking (Tension) . So the easy thing to do is put some kind of tape on the outside , even cheap packing tape will take the tension loads and prevent cracking while bending . Fiberglass tape while more pricy works the best ... Even with kerfing' , tape works !!! ;)


I kept this in mind yesterday; Thanks

Tape worked very well :thumbsup: