Tuesday, June 11, 2013

Big Girtha Build Part 16, Trim Tape Placement

I started the colored electrical tape wraps from the top down.
The strips were cut to 5/16" thick on my patio door glass. Use a new blade and a metal straightedge.

The wraps were all started in line with the launch lug.
Be sure to overlap the tape strip ends by about 1/8". Over time the tape will shrink up a bit.

When laying down the lines try not to stretch the tape. Let it relax before setting it down.



Look close at the first picture and you can see a paper strip wrap under the red tape. The straight paper wrap gives you something to line up the tape. If you follow the paper edge your ends should meet up perfectly.
The first Big Girtha had four red tape lines going barber pole style down the upper tube. I always thought it should have had five strips sitting a little closer together.

To find five even space marks on the strip -
The strip was wrapped around the 40mm tube and the overlap marked.

The circumference of the tube is a little under 5".
To divide the strip into five sections I set my ruler over it at an angle and the inches were marked.
When re-wrapped around the tube I had five even spaced marks for the five angled tape strips.

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