By request I have custome-designed this ACME-style conformal rail guide for mid-power rockets and high power rockets. It is conformal to 98mm airframe rocketry tubing and will fit the 1010 size of 8020 aluminum extrusion rail.
The conformal base part is two inches long by one inch in width. The vertical part is one solid part instead of being two pieces with an empty channel between them.
There are pointers on both ends of the rail guide that will help with the alignment on the airframe tube.
Recommended infill: 100%
E-F motors: PLA
G-H motors: PETG
I-J motors: ABS