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Post by racket on Oct 11, 2013 16:54:15 GMT -5
Hi Anders
LOL......sounds like you're going to do it the right way .............. ah, the luxury of having reamers ..........heh heh I was thinking of my usual method of a coupla 8mm holes and bash in some roll pins ;-)
Cheers
John
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metiz
Senior Member
Joined: April 2011
Posts: 297
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Post by metiz on Oct 12, 2013 5:18:25 GMT -5
Ah, the luxury of having roll pins, My usual method is an angle grinder and a hammer  |
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Deleted
Joined: January 1970
Posts: 0
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Post by Deleted on Oct 12, 2013 13:32:43 GMT -5
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Post by Johansson on Oct 12, 2013 15:20:43 GMT -5
Yes it has, the best drag strip in Europe by far.  It feels strange that they would take the risk of bankruptcy by adding a road racing track etc to the strip but I guess all it takes is a couple of rainy summers for the stack of bills to pile up... |
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Deleted
Joined: January 1970
Posts: 0
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Post by Deleted on Oct 12, 2013 16:02:38 GMT -5
Yes it has, the best drag strip in Europe by far. It feels strange that they would take the risk of bankruptcy by adding a road racing track etc to the strip but I guess all it takes is a couple of rainy summers for the stack of bills to pile up... Well best perhaps after Santa Pod,the home of drag racing in europe :-) lol.... Think all tracks feeling the pinch over last few years, what with wet summers, more rules put on them and some of public thinking they have the right to spoil other peoples fun, with moans about noise etc, some even when they have moved into an area knowing full well there is a track down the road |
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Post by Johansson on Oct 13, 2013 1:16:09 GMT -5
Won´t argue about that, but the fastest track in Europe is undoubtedly Tierp.  My hope is that the bank and the people involved agree that there is just too much money invested in the track to simply shut it down, but I guess we´ll see how it turns out. I still have my hopes up that I can run the One Mile event there next summer. Cheers! /Anders |
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Post by Johansson on Oct 13, 2013 14:19:30 GMT -5
This afternoon my newfound friend came over with a 6mm reamer, a 5.8mm drill and a handful of dowels. If time permits I will give it a shot tomorrow.  Cheers! /Anders |
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Post by racket on Oct 13, 2013 16:35:53 GMT -5
Hi Anders
You have some good friends :-)
Cheers
John
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Post by Johansson on Oct 13, 2013 22:56:45 GMT -5
Indeed, I guess projects like this one acts as a magnet for like minded people. |
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Post by Johansson on Oct 14, 2013 15:57:14 GMT -5
Time to find out how this reaming stuff works, after working on the flame tubes for the jetkick for a couple of hours I fitted the JU-01 core to the rotary table in the mill.  After drilling each 5.8mm hole I reamed it at the lowest speed in the mill.  With both holes done I removed the shaft tunnel and fitted the dowels, actually it was a bit difficult because the hole was so exact that the dowels kept popping back out from the air trapped under them.  The fit is perfect, I´ll order a set of reamers for future projects because this is something I haven´t done for the last time.  Cheers! /Anders |
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Post by racket on Oct 15, 2013 19:54:37 GMT -5
Hi Anders
I love watching your machining , it gives me inspiration :-)
Might just pinch your lube in/out setup for the Skuld shaft tunnel if you don't mind ..............maybe 3 scavenge pumps so that the line sizes are smaller than one big one and each can be a dedicated pump for a section of the shaft tunnel , one at each end for the thrust bearings and a central one for the bushes.
Do the dowels need sealing behind the comp wheel to prevent air leaking and/or the dowel backing out and contacting the wheel ??
Cheers
John
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Post by Johansson on Oct 16, 2013 12:44:08 GMT -5
Hi John, Inspiration is good! A sectioned oil return with three scavenge pumps sounds like a good idea, it should make it much easier to design the engine casing since you won´t have a large diameter gravity drain coming through it. Makes oil tank placement easier as well. No air can leak through the dowel holes so the only thing I´ll do is to punch a section of the hole edge into the hole so the dowel can´t back out into the compressor. I´ll leave the dowels unglued so I can remove them in case I need to fit the shaft tunnel to the lathe later. Cheers! /Anders |
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Post by racket on Oct 16, 2013 15:49:34 GMT -5
Hi Anders
Yeh , that sounds like all it'll need :-)
Cheers
John
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gidge348
Senior Member
Joined: September 2010
Posts: 426 
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Post by gidge348 on Oct 16, 2013 19:33:32 GMT -5
If you do need to secure the dowels, would it be worth putting a grub screw in from the outside?  |
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Post by Johansson on Oct 16, 2013 22:53:39 GMT -5
If you do need to secure the dowels, would it be worth putting a grub screw in from the outside? Nah, just another thing that can come loose and drop into the turbine wheel. |
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