108 mm

Fixed the holes in the skirt today. Finally got my hands on a slightly larger than 4" hole saw.
A 108mm one did nicely.

They fit!!

 After that, I gave the panels a couple coats of grey primer, a quick sanding, and a coat of silver.

 Next I'll glue in the hemispheres and attach the panels to the skirt frame, and the bottom part om y my Dalek will pretty much be done!

Holes!

Just finished drilling the 56 4" holes in the skirt panels for the hemispheres.
I cheated a little bit and only measured the locations for each hole on one side of the skirt and the clamped the corresponding panel from the opposite side to each and drilled straight through - so I did 2 panels at a time. Except for the back panel obviously...

And here they are leaning in position against the skirt frame again.

Now on to those hemispheres!!