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Post by jetjeff on Dec 5, 2016 3:20:04 GMT -5
Hi Ian,
Thanks.
Hi Adam,
Online metals sells 1.75" ( 44.45mm) O.D. 304 seamless stainless steel tubing .062" thick wall. The sheet metal shop i use to have my burner can formed, can only bend down to 2".
A random length piece (10"-12") is 29.64 USD . If you go with tubing, I'd advise on seamless. I've used stainless steel exhaust pipe (welded), but it's not very concentric.
Regards
Jeff
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Post by jetjeff on Dec 7, 2016 16:55:26 GMT -5
Hi All, My shipment of magnesium arrived today. I've also ordered some 3/32 carbon fiber sheet. I'm waiting to see if the aluminum compressor performs like the carbon fiber one. This will determine if Heineken part II gets a magnesium compressor or a carbon fiber attempt. Regards Jeff
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Post by jetjeff on Dec 10, 2016 1:57:24 GMT -5
Hi All, Some pics showing how I cut the bottom cap off the keg and starting to make the front sleeve that houses the front cover and compressor diffusor. Regards Jeff
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Post by jetjeff on Dec 11, 2016 7:03:12 GMT -5
Hi All, Some pics showing the sleeve. Regards Jeff
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Post by jetjeff on Dec 11, 2016 13:22:56 GMT -5
Hi All, I had to make a welding jig to hold the hub, because I don't have a TIG welder (Schreckling welded it right on his lathe, the hub centered with a live center). Checked it after getting back from the welders, it's off by about .004", not too bad. This turbine is slightly larger than Heineken 1. The turbine hub is chrome moly, the disk is 347 stainless. Regards Jeff
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Post by jetjeff on Dec 14, 2016 1:37:00 GMT -5
Hi All, The carbon fiber I ordered arrived Monday. I ordered it from Dragon Plate out of NY. It's 12" x 12" x 3/32". Their website is DragonPlate.com. Regards Jeff
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Post by jetjeff on Dec 17, 2016 9:50:55 GMT -5
Hi All, Here is another how to video on twisting the turbine blades for a Kamps or Schreckling turbine. youtu.be/lqrV9cdxylYRegards Jeff
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dieselguy86
Veteran Member
Joined: September 2014
Posts: 186
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Post by dieselguy86 on Dec 17, 2016 14:27:42 GMT -5
Cool video!
I liked how you used a dead center to support the top end. If i ever get around to making one i was going to use my snap-on 1/2" drive torque wrench. It has a digital angle feature for doing TTY cylinder head bolts.
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Post by jetjeff on Dec 17, 2016 14:49:32 GMT -5
Hi Dieselguy, Thanks. The dead center helps keep you from bending the blades axially.
Regards
Jeff
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Post by jetjeff on Dec 19, 2016 22:18:56 GMT -5
Hi All, Here is a pic of the finished turbine wheel. Regards Jeff
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Post by jetjeff on Dec 22, 2016 6:59:22 GMT -5
Hi All, Here is the best way I've found to profile the turbine blades. Just a small disk from an old credit cards works best to get in-between the blades (I use the mandrel from the cut off wheel). I asked Santa for a 5 axis CNC mill, but I doubt that I'll get it,,,lol. Regards, Merry Christmas Jeff
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Post by jetjeff on Dec 25, 2016 7:34:21 GMT -5
Hi All, Working on the compressor diffusor. I make an aluminum template set at 66 degrees to mark the blade locations. Regards Jeff
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Post by jetjeff on Dec 25, 2016 17:37:03 GMT -5
Hi All, I've decide to make the compressor diffusor out of aluminum in stead of magnesium. Currently cutting the slots for the blades. Regards, Jeff
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Post by jetjeff on Dec 26, 2016 12:56:36 GMT -5
Hi All, I finished the 18 slots and double checked the blade angle, they are at 66 degrees. I will mill the .125" blades to a point, something I didn't do with Heineken 1. Regards Jeff
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Post by jetjeff on Dec 28, 2016 18:37:16 GMT -5
Hi All, More progress was make on tapering the compressor diffusor blades. I copied after what Anders did making his NGV blades, except I machined the blades vertically instead of horizontally. I found mounting my Bridgeport vice on top of my rotary turntable was the way to go. The blade on the left is tapered the blade on the right in the bottom photo is not yet tapered. Regards Jeff
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