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Post by madpatty on May 19, 2017 18:17:53 GMT -5
I finished the turbine side today, the shaft was drilled and threaded for an M10 screw. Then I turned a washer from a SS2333 bar. The backside of the washer got a milled slot that fits onto the end of the key. The washer was drilled through in the mill and after that I torqued the insex screw down and drilled the screw head through with the battery drill. With the screw head drilled through I could remove the turbine wheel and clean everything out, now I just need to fit a 2mm stainless wire to lock the turbine wheel in place for good! Cheers! /Anders That's Aerospace grade protection. Very nice work as usual Anders. Cheers.
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Post by racket on May 19, 2017 23:15:17 GMT -5
Hi Anders
That should keep everything in its place :-)
Cheers John
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Post by Johansson on May 20, 2017 12:23:45 GMT -5
Thanks Patty and John, it feels like a bullet proof locking system.
Perhaps I will open the hole up to 2.5mm to be able to fit a 2.4mm stainless tigwelding rod, that is the same diameter as the bike freepower wheel lock has and it has stayed in place so far. :-)
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Post by racket on May 20, 2017 17:39:43 GMT -5
Hi Anders
The ALCO 320 locomotive turbo rotor I have used a stainless split pin and 1/2" castellated nut to hold its 10" turbine wheel in place at 30,000 rpm :-)
You'll have a fair bit of gas loading on the other side of the turb wheel , but a 10 mm high tensile screw should hold 100 kgs of gas loads without any worries.
All looking good
Cheers John
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Post by Johansson on Jun 21, 2017 16:17:58 GMT -5
Finally the wave washers I ordered have arrived so I could continue working on the fan! I didn´t take many pics of the job, but I started by making the rear bearing seat in the shaft tunnel. A stack of three wave washers behind the bearing gave slightly over 500N preload when compressed to 3/4 so I´ll try that and see how it works. With the turbine wheel in place I could calculate how the fan side of the shaft tunnel would look like, here the bearing is seated both in the shaft tunnel and on the shaft. It goes without saying that I had to test spin the turbine for a couple of minutes while making jet-like sounds.... Cheers! /Anders
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Post by racket on Jun 21, 2017 16:41:33 GMT -5
Hi Anders
Nice job :-)
Cheers John
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Post by Johansson on Jun 21, 2017 16:59:39 GMT -5
Thanks John! I´ve been a bit "off" with the turbine stuff lately since I´ve just discovered the joy of handgun shooting, luckily we only have an outdoor range so I will still have lots of workshop time during the colder parts of the year.
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CH3NO2
Senior Member
Joined: March 2017
Posts: 455
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Post by CH3NO2 on Jun 21, 2017 18:35:49 GMT -5
Watch... in a couple years time, Anders will make the finest DIY turbine powered Gatling gun you ever saw.
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Post by Johansson on Jun 21, 2017 23:04:28 GMT -5
Watch... in a couple years time, Anders will make the finest DIY turbine powered Gatling gun you ever saw. Take my word on it that if the Swedish gun laws weren´t the way they are I would have been building a 12ga shotgun Gatling right now. I´ve bought a book containing the original Gatling patent to study the inner workings, it is a mechanical marvel with the ramp controlled bolt and firing pin movement!
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CH3NO2
Senior Member
Joined: March 2017
Posts: 455
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Post by CH3NO2 on Jun 21, 2017 23:09:02 GMT -5
OMG... a 12ga Gatlin... that would be soooo sweet. Dont put bad ideas like that in my head! Now I want one.
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Post by Johansson on Jun 21, 2017 23:16:59 GMT -5
Imagine this beauty fed with heavy 12ga slug rounds. Oops, sorry for going off topic...
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Post by jetjeff on Jun 22, 2017 2:49:36 GMT -5
Hi Anders,
There are plenty of YouTube video's on converting a Ruger 10/22 to full auto, but it's hard to build turbines when you're incarcerated in a Federal penitentiary,,,lol.
Regards
Jeff
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Post by Johansson on Jun 22, 2017 3:10:18 GMT -5
I have a 10/22 and it empties the 10 round mags fast enough on semi auto...
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Post by jetjeff on Jun 22, 2017 3:32:41 GMT -5
How about 110.
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Post by Johansson on Jun 26, 2017 14:40:22 GMT -5
Less guns and more turbines! I ground the fan hub center until it had a sliding fit on the turbine shaft. Now I just need to mill a keyway slot on the shaft. Ehh, I might have a bit more work ahead of me than that.... Cheers! /Anders
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