First thing, take a scrap piece of sprue , heat it & stretch it to the right diameter you need. Make a bunch in case you mess up.

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First thing, take a scrap piece of sprue , heat it & stretch it to the right diameter you need. Make a bunch in case you mess up.

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I agree with all the above except this line. You will never get consistently sized pieces of stretched sprue. The jig idea is great, just stick with the Plastruct or Evergreen styrene rod so it is the same size for all the bows. 0.025 is probably the size rod you want.

Plastrut makes it, here is an example on evilbay, I use it all the time

http://www.ebay.com/itm/PLA90101-3-64-Plastic-Coated-Wire-15-Plastruct-Supplies-/350759570320

and

https://www.expotools.com/acatalog/Plastic-Coated-Wire.html

multi coloured are here

http://plastruct.com/?s=wire+coated&post_type=product

However, I am having issues with bending the evergreen plastic rods to simulate the bars for the canvas cover(?). What techniques do you use to bend plastic rods without breaking them? I do not want to resort to using metal rods because I want to stay in the same medium for ease of gluing purposes.

Thanks.

James