Trend Unibase to Leigh e7 guidebush adapter

This Thing is an adapter to make the Leigh e7 Guidebush fit into a
Trend Unibase. The finished outside diameter is 60mm on the outer
flange with a stepped 34.85mm to 29.75mm bore. I've just fitted it to
my Unibase and assembled the e7 guide bush around it and it's a
nice snug fit. as I printed it on a Duplicator4 so I had to scale it by a
factor of 1.02 to get it the correct size, however if yours prints as
drawn, it should need no scaling at all.