I would like to see the vacuum process that several people have mentioned in the comments. Maybe a video where you demo several different epoxy types and application methods on scrap materials so they can be flipped over to show both sides if needed. Like if you put a fin into a tube, but have the tube cut away as a demo. For newbies like me or younger people that haven't worked with epoxy much where strength and techniques become important. With the lighting in your garage its not always easy to see how you are doing some of this.
You got very very lucky on removing the bad fillets. I weigh my laminating epoxy (Aeropoxy) and use Loctite Hysol 9462 with the self-mixing disposable dispensers. Haven't had this disaster with either of them when doing this way.
Absolutely, had they been any harder or softer this would have been a disaster beyond belief. I have a tube of hysol sitting around somewhere, along with some 3" quasi carbon fins from back when I thought I wanted to be an altitude guy. Although, those feelings are starting to come back a bit.
Only use the pumps to distribute. Best way to get the best mix for your epoxy is weigh the ratios out.. also if highly highly recommend using Aeropoxy ES6209 structural for fillets. Much stronger and lighter then west systems. Plus doesnt need a thickening agent if you dont want due to its hold and thickness. They also make a laminating epoxy and a light weight filler epoxy. Best stuff to remove uncured epoxy lacquer thinner. For a minimum diameter rocket. Dont recommend fillers. Mixing fillers induces air bubbles. While you physically feel its strong under flight stress is a different story. I also recommend vacuum processing your epoxy before applying the epoxy to fillets. This removes air bubbles.
depending on the working time of your epoxy, could you do a quick vacuum to remove air bubbles? Might help remove the pin holes left behind. best of luck with the remaining finishing!
I actually used a trick I learned from Crazy Jim, considering this epoxy's cure time. I spread it pretty thin on a paper plate and let it outgas for about 20 minutes before putting the last two sets on the rocket and the difference was extremely noticeable.
the pump was a bit sketchy on the hardener, but I did do my best to make sure it wad providing full pumps. At any rate, I'll be more attentive to the ratios moving forward
I recently used West Systems for the first time. I wasn't too happy with it due to the fact it mixes to a thin consistency, I realize fillers can make it into a thicker consistency but that's just more work and money. Proline epoxy is the best way to go I think. I've never had any issues with it, already thick, makes beautiful fillets, never any bubbles.
Personally, I love how thin it is, especially for laminating purposes. It's also great for deciding on your consistency with varying fillers. The colloidal silica filler is fantastic, too, because it sands quite easily to shape without sacrificing the strength of the epoxy. I have some Proline 4500 and some aeropoxy around, too. I just kinda stuck with what I know. I guess we'll know if that was a bad decision relatively soon!
Check out Tony's channel
th-cam.com/users/tfish38
Can you do a video explaining how motor impulse works?
I would like to see the vacuum process that several people have mentioned in the comments. Maybe a video where you demo several different epoxy types and application methods on scrap materials so they can be flipped over to show both sides if needed. Like if you put a fin into a tube, but have the tube cut away as a demo. For newbies like me or younger people that haven't worked with epoxy much where strength and techniques become important. With the lighting in your garage its not always easy to see how you are doing some of this.
You got very very lucky on removing the bad fillets. I weigh my laminating epoxy (Aeropoxy) and use Loctite Hysol 9462 with the self-mixing disposable dispensers. Haven't had this disaster with either of them when doing this way.
Absolutely, had they been any harder or softer this would have been a disaster beyond belief.
I have a tube of hysol sitting around somewhere, along with some 3" quasi carbon fins from back when I thought I wanted to be an altitude guy. Although, those feelings are starting to come back a bit.
Only use the pumps to distribute. Best way to get the best mix for your epoxy is weigh the ratios out.. also if highly highly recommend using Aeropoxy ES6209 structural for fillets. Much stronger and lighter then west systems. Plus doesnt need a thickening agent if you dont want due to its hold and thickness. They also make a laminating epoxy and a light weight filler epoxy. Best stuff to remove uncured epoxy lacquer thinner.
For a minimum diameter rocket. Dont recommend fillers. Mixing fillers induces air bubbles. While you physically feel its strong under flight stress is a different story. I also recommend vacuum processing your epoxy before applying the epoxy to fillets. This removes air bubbles.
Listen to Tony.... He knows a lot better than us mere mortals... who else can make motors from karo syrup?
Tony and Jarvis were my heroes as a teen rocketeer, haha
and the Gates Brothers, but that really goes without saying
Why is there a Miata shift boot/center console in the background?
I've had three Miatas
@@RocketVlogs a man of culture
I thought you were saying "teenager alcohol" hahaha
depending on the working time of your epoxy, could you do a quick vacuum to remove air bubbles? Might help remove the pin holes left behind. best of luck with the remaining finishing!
I actually used a trick I learned from Crazy Jim, considering this epoxy's cure time. I spread it pretty thin on a paper plate and let it outgas for about 20 minutes before putting the last two sets on the rocket and the difference was extremely noticeable.
I wonder if the hardener deprimed but was fine after that one pump for that batch.
the pump was a bit sketchy on the hardener, but I did do my best to make sure it wad providing full pumps. At any rate, I'll be more attentive to the ratios moving forward
Get a digital scale. I've noticed my west pumps don't dispense the exact amount they're supposed to
Yep, that's what I did with the new fillets
I gotta 2nd the scale, personally I use syringes for my laminating epoxy and scales for structural.
@@scrapmaster09 I have been doing that as well. Never had any issues in 20 years. It just works.
Vacuum pump your epoxy, after mixing, to remove bubbles before you use and get more strength out of a no fin through tube designed rocket.
th-cam.com/video/W_mT9FT9HzA/w-d-xo.htmlsi=kzNMNVpDU8YvOQCD
th-cam.com/video/W_mT9FT9HzA/w-d-xo.htmlsi=kzNMNVpDU8YvOQCD
Where's the pinned comment ? I'd very much like to check out Tony's channel
Updated! My mistake. I put in in the description instead
I recently used West Systems for the first time. I wasn't too happy with it due to the fact it mixes to a thin consistency, I realize fillers can make it into a thicker consistency but that's just more work and money. Proline epoxy is the best way to go I think. I've never had any issues with it, already thick, makes beautiful fillets, never any bubbles.
Personally, I love how thin it is, especially for laminating purposes. It's also great for deciding on your consistency with varying fillers. The colloidal silica filler is fantastic, too, because it sands quite easily to shape without sacrificing the strength of the epoxy. I have some Proline 4500 and some aeropoxy around, too. I just kinda stuck with what I know. I guess we'll know if that was a bad decision relatively soon!
West is originally intended for marine use for wetting out fiberglass.