Rail button spacer

Steven88 · Feb 20, 2020

Is there any reason a guy couldn’t put a small plastic rail button spacer behind the rail button on his rocket to hold it out another 3/32” and keep it from being scratched on the rail? See attached pic.

dhbarr · Feb 20, 2020

I just used four parts of a 3-part railbutton, worked a treat.

Essentially it's just a plastic washer for the standoff, and then because I was feeling fancy I did a tiny fillet.

Steven88 · Feb 20, 2020

Love your style!

crossfire · Feb 20, 2020

Steven88 said:
Is there any reason a guy couldn’t put a small plastic rail button spacer behind the rail button on his rocket to hold it out another 3/32” and keep it from being scratched on the rail? See attached pic.

I do it all the time

Speaknoevil · Feb 20, 2020

Another option: https://binderdesign.com/store/rail-button-standoffs.html

Steven88 · Feb 20, 2020

There’s always a trade off isn’t there. No scratches equals more air resistance in this case

ep29030 · Feb 20, 2020

could use a nylon washer as well. Haven't checked for sizes, but McMaster-Carr carries nylon washers.

Dustin Lobner · Feb 21, 2020

If you have (or access to) a 3D printer, I print standoffs for mine, works great.

John Kemker · Feb 21, 2020

Once had a 4" Nike Smoke that I put rail buttons on. In order to space out away from the nose cone "bulge," I put two buttons on each bolt and anchored to the airframe with T-nuts embedded in small wooden blocks. Kept the rail just far enough away from the "bulge" so as not to interfere while providing good stability off the pad.

o1d_dude · Feb 22, 2020

Almost all of my tube fin rockets now use rail buttons mounted atop standoffs.

Retrofit was because I acquired a sturdy launch pad with a length of 1010 rail.

Rail button spacer

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Rail button spacer

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