Making frames

[tf34mech]

I am building the Epson Tractor Rig and I am having trouble with the frame.
Does anyone know any good techniques on constructing automotive type
frames so that they are square and true?
Thanks
Shawn M

[rickstef]

Shawn,

Can you post a picture of what you are talking about?
I have built a few of the square tubing for different Epson Racing Team parts.

Also, can you post a picture of the tool you use for scoring the fold lines, just curious

Rick

[tf34mech]

I will try and post some pics if I can figure it out. I built the
frame for the semi truck but it is not square and is twisted.
I built it on a flat surface but it didnt stay true. I am using
a small knitting needle to score the lines and seems to work good.
I have used a ball point pen with no ink when in a pinch. I seen
a build up article some where that used a jig of some sort.
Thanks for the help.
Later
Shawn

[RINGMASTER]

Try using a build board. Score and cut the frame box, then glue the corners of the frame box to a flat rigid board with tiny drops of white glue in the corners. Fold up and glue and let every thing dry completely, then cut it loosewith a knife blade.I made my board by glueing card stock to a partical board top from a discarded table. So of the ship modelers can give you more information as it is one of their basic techniques.

[tf34mech]

Thanks for the ideas. I am also going to try putting formers in the frame
rails so that they stay square.
Later
Shawn