Model rocket three ring motor mount tips

[@KevinsModels]

Just wanted to throw another comment in here. As I watched how you use a paper towel tube to push the middle ring in, it dawned on me that if you accidentally push it in too far, it’s impossible to pull it back out. 2 ideas: 1: Drill holes and run string to it as well in case you need to pull it back aft a bit. Cut the strings later and ensure the knots are aft of the ring. 2: Cut the paper towel tube to the exact distance needed. That way, if you press it against your workbench, it will only go so far until it becomes flush with the bottom of the rocket tube. Then you know the middle ring is spot on. Hope that all made sense. Thank you for getting the wheels in my head spinning. I love this kind of stuff! Keep up the great videos!

[@mguerramd]

@@KevinsModels Absolutely correct. I’m thinking that generally the position of a middle ring of a three ring mount isn’t that critical as long as it’s forward of a fin slot. But some middle rings are positioned in the fin slot and have notches to accept a corresponding notch in the fin tab. In those cases it’s critical to get the middle ring perfectly positioned. So you either have to do it on the engine tube first and get less than optimal gluing in the body, or use your method.

[@KevinsModels]

Excellent tutorial! I appreciate your comment on my video and I will respond when I have a chance. Again, excellent explanation and visual demonstration. Thank you!!! Just subbed and I will go back and watch all your rocket videos. 👍