Sunday, September 26, 2010

Cutting the inner dome panels

Today I did some cutting of the inner dome panels I had previously marked out.

A few weeks ago, while removing the head of a screw, my 7 year old Dremel made a POP sound and died.  Now I have replaced the Dremel with the latest and greatest model.  This also means the better cutting wheels will work on this model.

The goal is to cut the panels out, file them, then I will use the JAG hinges to bolt them into position.  I'll counter-sink the screw holes so that the end result will be perfectly flush.  My thinking is that by using the inner dome pieces, I will not have to mess with the troubles other builders have had.  Some have had difficulty getting the panels to close or open completely, more notably in the dome pie-panels.  Since all of these panels will be attached to servos for quick opening and closing,  I want to make sure they all close flush.


First I wanted to make the cut lines more pronounced, so I took a flexible metal ruler and pencil to them.  




The vertical lines were easy, the horizontal, due to the curvature of the dome, were a bit tricky.


Speaking of tricky...how to cut the dome panels was my next hurdle.  Since the panels are all near the bottom, I would need to find some way to cut them safely.  What I came up with wasn't exactly ideal...but worked!








With that, it was time to start cutting...










Next up is to file the pieces.


However there was one boo-boo.  I cut through the bottom so I mixed up some JB Weld, put it in the overcut and set it so I can sand smooth tomorrow...




More tomorrow!