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#21 Sparky_NY

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Posted 23 December 2018 - 06:40 PM

Any reason you cant mill these flat and then bend them around the correct diameter pipe?

Yup,  brass won't bend worth a shit.    It cracks/breaks.     Similar to aluminum.    



#22 Cutter

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Posted 23 December 2018 - 07:39 PM

Going to cut on your mill?     Going to need a really tiny endmill for the detail and those are a real PITA without mega rpm's.     I have been thinking of one of those china air cooled router spindles as a sub spindle for such things,  800 watt (about 1hp) with a vfd is under $200 these days,  24000 rpm max and a er collet,    Pretty small too, about 2-1/2 x6-1/2 round.  Maybe later this year.

 

 

Yep, cutting on my mill.
1/32 ball  3500 & 4 ipm
.0003 chip load.
Maybe 4 or 5 hours  ,  push button, take nap 

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#23 Cutter

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Posted 23 December 2018 - 10:17 PM

Any reason you cant mill these flat and then bend them around the correct diameter pipe?

 

A 2” to 2-1/2” radius will form easy with a Press, using 1/8 or 3/16 thick brass.
It can also be rolled, but this method uses more material & time


#24 Roller

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Posted 23 December 2018 - 11:46 PM

A five axis machine would be ideal for this build.

 

Frank


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#25 Cutter

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Posted 24 December 2018 - 03:53 PM

A five axis machine would be ideal for this build.

 

Frank

 

Yes Frank, 
It’s fun doing 5 axis cutting , I have the software
but only 4 axis machining capability.

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#26 Cutter

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Posted 24 December 2018 - 06:28 PM

3 Axis cutting on a formed blank.
 

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#27 maccrazy2

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Posted 24 December 2018 - 11:45 PM

Nice. What program are you running?

#28 Cutter

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Posted 25 December 2018 - 04:32 PM

Nice. What program are you running?

 

 

Surfcam 



#29 Larryx

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Posted 05 March 2019 - 10:41 PM

 
 
I spoke to Paul Moore of RG G Gatling guns a few days ago regarding a build question and from our conversation I believe he might be thinking of producing some additional copies of his beautiful authentic brass medallions. He would not commit but it would be great if they became available. Maybe one of you old timers who knew him back in the day could call him and find out what he is thinking.
 
 


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