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  #21  
Old 02-07-2020, 07:05 PM
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LeeR LeeR is offline
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Iím not sure there are brass bits, since brass is so soft. I turn brass on my wood lathe, using HSS lathe tools. The picture shows a tool handle I turned, with a brass plumbing hex nut used as a ferrule to strengthen the handle. Some exotics woods Iíve turned are more difficult to cut than brass.

One solution may be to use a piece of brass tubing to drill out the core. Perhaps cutting an angled tip, to prevent clogging, and also to make it easier to sharpen the tip, might work well.
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Lee Reep

Projects: Super Sky Hook, Super X-Ray, Semroc Spaceman, Estes Phoenix, Big Daddy, Enerjet 1340, Enerjet 1640 (downscale 2250)
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Last Completed: SuperNova
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  #22  
Old 02-07-2020, 08:47 PM
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BEC BEC is offline
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Quote:
Originally Posted by LeeR
The booster motors are slowly getting used up by my Double Mini Max.


I've been having a great deal of fun using A10-0Ts (and some old 1/2A3-0Ts) in this: https://estesrockets.com/product/007276-checkmate/

Don't believe the "over 900 feet" bit, though. More like 750 (when carrying a very small altimeter). Or ~400 feet A10-0T to 1/2A3-4T.

Thirty-nine flights so far on mine.
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  #23  
Old 02-07-2020, 11:35 PM
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LeeR LeeR is offline
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Quote:
Originally Posted by BEC
I've been having a great deal of fun using A10-0Ts (and some old 1/2A3-0Ts) in this: https://estesrockets.com/product/007276-checkmate/

Don't believe the "over 900 feet" bit, though. More like 750 (when carrying a very small altimeter). Or ~400 feet A10-0T to 1/2A3-4T.

Thirty-nine flights so far on mine.


And I thought I had an insane number of 13mm motors!

Its an attractive little rocket. If I donít ever build one, Iíll at least steal its color scheme.
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Lee Reep

Projects: Super Sky Hook, Super X-Ray, Semroc Spaceman, Estes Phoenix, Big Daddy, Enerjet 1340, Enerjet 1640 (downscale 2250)
Awaiting Paint: Estes Saturn 1B
Last Completed: SuperNova
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  #24  
Old 02-08-2020, 01:31 AM
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Mini motor packs are $5.99 at Hobby Lobby these days. Actually all 1/4A to B motor packages are that price. So...I have been restocking from time to time.
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  #25  
Old 02-08-2020, 09:28 AM
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I know it was a "brass colored" bit I used in the past to core motors that was labeled non-sparking tool.
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