Working on a Cosmo theme?
A friend wanted some for an MX-5. I like the old logo.
Working on a Cosmo theme?
Last night, I pressed the leftover crumblies harder, and they held together. Only burned slowly and stayed lit all of 6 seconds. Burned the pellet in free air. Fizzled, then actually caught fire, then went out. Left a puffball shape which was mostly hollow and almost exactly the same color as the original fuel. But even a propane torch wouldn't light it. What's fun is that the torch leaks around the valve, catching fire, and then I have to blow it out before I turn it off. I think I'll retire that one!These Jetex pellets I'm making are about that diameter, but shorter. You can put more than one in a motor. But I guess a 13mm motor is a lot smaller than that on the inside. Next stop, MicroMaxx refills.
These are sugar (i.e. rocket candy) and/or epoxy motors, with a side trip into wax. Last night's results were wicked crumbly. Also burned better outside the motor than inside! It's not supposed to work like that.
I certainly wouldn't trust it not to, but the laser won't cut the glass anyway (unless it's a hell of a lot more expensive unit that any school is likely to have).I wasn't aware that the epoxy would make a toxic gas when cut with a laser?
Dremel cutting wheels work fine on fiberglass sheet.If the epoxy was all gone, you could cut the glass with a knife.
A Dremel cutting wheel ought to cut glass, but it might be slow. Maybe use a carbide router bit or carbide tipped saw blade?
------------
Generally, one can warm up epoxy if it needs adjustment. This may work with some other kinds of glue.
I can't use the laser cutter at my school
I do have one of those...Dremel cutting wheels work fine on fiberglass sheet.
Wear a respirator. Ground fiberglass is pretty much DIY asbestos.I do have one of those...
Make sure you wear a fine particle dust mask, you don't want that stuff in your lungs...I do have one of those...
And safety glasses or something. Especially if using the skinny little wheels that break and fly into your face if you have as much as a bad thought.Make sure you wear a fine particle dust mask, you don't want that stuff in your lungs...
Edit:snap
Make sure you wear a fine particle dust mask, you don't want that stuff in your lungs...
Edit:snap
Yes, I was planning on wearing protection!And safety glasses or something. Especially if using the skinny little wheels that break and fly into your face if you have as much as a bad thought.
also, I am planning on using a small table saw I have. Should do the job just fine and won't break into little pieces like Dremel tool wheels.Yes, I was planning on wearing protection!
Glad you at least made it safe home, but...wow!I had a TIA a few years ago. One second I was sitting at a light in Vegas. The next second I was at my desk in the garage. I drove the 60 miles to get home. Don't remember doing it. Was missing 8 hours. I was already seeing a cardiologist. When I told her about the missing time she told me I had a TIA. Scared me silly.
If it's any comfort, most of us have done that. At least you remembered before going out the the pad to load the rocket onto the rod.Cried on the inside as I realised that I needed to sand into my almost completed paint job so I could attach the launch lug I'd forgotten to attach...
Yeah. If I were to cut the fiberglass with my Dremel I would have to get new cutting wheels because the ones I have are literally so thin and brittle that they splinter apart when I am (trying) to cut basswood.Some Dremel wheels, the ones that are really thin, are brittle. Others are not. But if you're cutting much material, a table saw may be easier. The fiberglass dust will still be nasty.
The EZ Lok discs are larger; much, much easier to mount; and last longer than the thin brittle ones. Definitely worth getting.Yeah. If I were to cut the fiberglass with my Dremel I would have to get new cutting wheels because the ones I have are literally so thin and brittle that they splinter apart when I am (trying) to cut basswood.
Enter your email address to join: