Thanks.CA on the ends of tubes and couplers prevents the ends from getting burred up during handling rocket prep. The burrs create an artificial and variable but very short tight fit, so they are bad.
Thanks.CA on the ends of tubes and couplers prevents the ends from getting burred up during handling rocket prep. The burrs create an artificial and variable but very short tight fit, so they are bad.
They may do so but they are wrong.That's what I call them too, but most people call them mollies.
The one I showed is a molly. Wikipedia says they are also call "hollow door anchors" which is not wrong but molly seems more specific. The other variety you showed are not mollies. Wikipedia calls them "wall plugs". I call them crap (at least for drywall usage).I think there's another name for the ones you showed, but I don't remember what it us.
I would, and I do, and for all my nearly 60 years on this Earth, everyone I know has called those plastic pieces of crap either "crap", "garbage", "mollies", or "plastic mollies". But it's never impossible for everyone I've known to be wrong.Joe, I would think you of all people would strive for accurate terminology.
I've often wondered, what do people do to replace the cut away bits of the eft end of the body tube below the fin slots. It's easy to come up with ideas, but I'd like to know what folks do, not what I can think up.Tim at Apogee uses a Kevlar string that weaves through a series of small holes in the aft centering ring. This makes and extremely strong pull handle for tight fitting centering rings. Check out the site at Apogee. I have moved away from doing internal filets that way. I build the entire motor mount assembly outside the rocket. Then I cut the fin slot open so I can slide the assembly into the aft airframe. I super glue the airframe to the aft centering ring. I do the external filets. I epoxy the forward centering and aft centering ring to the inside of the airframe. Lastly I inject foam into the fin/motor mount assembly.
More often than not, the fin sits in the place of that cut off tab. After super gluing the aft centering ring and aft end of the rocket and installing the motor retention ring, I epoxy the aft end of the rocket.I've often wondered, what do people do to replace the cut away bits of the eft end of the body tube below the fin slots. It's easy to come up with ideas, but I'd like to know what folks do, not what I can think up.
Added this today as an extension of yesterday's tip.Yes, dry fit and have screws in the aft cr to be able to pull it out to do internal fillets.
I've often wondered, what do people do to replace the cut away bits of the eft end of the body tube below the fin slots. It's easy to come up with ideas, but I'd like to know what folks do, not what I can think up.
Added today!When using a cutoff wheel on bolts that extend out too far in your e-bay, use masking tape to cover areas around it to avoid the mess.
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I don't know since I don't use TB, but if it does, that'd be very cool.I believe those tips also fit the similarly sized TB bottles, do they not?
Thanks! Apologies if I'm "spamming submissions" , I'm usually the one at work creating Tips & Tricks docs and I love brainstorming different ways to do things.Added today!
What is TB Quick and Thick?Here's a related, um, "tip": don't try to use one of those for your TB Quick and Thick. It would be nice if it worked, but it does not.
If you want a smaller bead of glue of the Q&T bottle, just use tape to cover part of the slot (sorry don't have my photo handy).
It’s a thick wood glue very good for fillets. Formerly called No arum No Drip… formerly called Molding and Trim Glue. See https://www.rocketryforum.com/threads/doing-fillets-with-titebond-quick-and-thick.148632/.What is TB Quick and Thick?
TB = Titebond (wood glue)What is TB Quick and Thick?
Do you have a picture?Wire-wrap extensions onto Estes igniters with a manual wire wrap tool and some pre-cut and pre-stripped #30 wires 4-6” long. Only takes 30 seconds and protects your clips from getting trashed in the motor exhaust. Even though the igniter wires aren’t square like header pins, the connection is pretty secure.
Cardboard Airframes: IF you want to install motor retention clips in a rocket with balsa or thin plywood centering rings, try using those plastic drywall screw expanders to improve the screw's grip. I've used them successfully in the past on LOC kits where I added homemade motor clips after the kit was built. And if you want to replace them, they come right out again.
Pretty cool. So you use the same type of wire wrap tool that I do for my high power igniters.Here you go.
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That wire wrap tool in my photo is about 30 years old.Pretty cool. So you use the same type of wire wrap tool that I do for my high power igniters.
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