monty
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Currently being spanked by mother nature.......
Joined: September 2018
Posts: 400
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Post by monty on Jan 16, 2020 18:09:27 GMT -5
Beautiful work in here! I have done it the other way to and questioned myself on offsets because they look strange and sure enough after correcting I realise there was a reason.
Great to see the casting technology being used. I have a 3D printer and gas forge I could use. I did build an induction furnace years ago but sold it along with an electric furnace which worked great for aluminium. I will enjoy following Hi Colin,
I have it backwards- I need a gas fired burnout oven and an electric furnace, either resistance or induction. It would make things a lot easier. You learn these things after it's too late!
Monty
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monty
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Currently being spanked by mother nature.......
Joined: September 2018
Posts: 400
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Post by monty on Jan 17, 2020 22:40:41 GMT -5
Managed to get some more done this week:
Cut the O-ring groove for the fan case transfer gallery.
Lots of drilling and tapping. All the cross feeds for the oil galleries drilled and the scavenge and feed fittings tapped.
    I discovered that the turret on the mill was off by about 43 min...ugh...Took me half a day to figure that one out. Now the oil jet gallery bores are not where I planned. The jets will work, but.... I'll have to guesstimate in order for the feed galleries to intersect...hope it works.
Time for a nap!
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Post by Johansson on Jan 18, 2020 7:11:49 GMT -5
This project is soo awesome!
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monty
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Currently being spanked by mother nature.......
Joined: September 2018
Posts: 400
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Post by monty on Jan 19, 2020 18:54:30 GMT -5
This project is soo awesome! Anders,
Glad you like it. Your project was a big inspiration for me to give this a go. Can't thank you, John, Andy, and the rest on here enough!
It also occurred to me the other day that with an output shaft speed 7-15K, I might be able to use a CVT from a snow machine if I wanted to make a 30Lb 150 hp engine instead of a thrust engine. Me and the guys who work on our race team were joking the other day about putting this in the race car. (currently has 10 hp and will do about 40mph-we hit 50+ on downhill track sections. The car only weighs around 350lbs) I told them it would burn around 20 gal/hr, but they would run out of underwear before fuel!! 
I don't think the gears would survive long without a fluid coupling somewhere in the drivetrain though... 
Monty
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Chuks
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Joined: August 2015
Posts: 498 
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Post by Chuks on Jan 20, 2020 17:16:27 GMT -5
Nice job Monty,
It's time to start reading from page one.
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Post by Johansson on Jan 21, 2020 0:28:54 GMT -5
This project is soo awesome! Anders, Glad you like it. Your project was a big inspiration for me to give this a go. Can't thank you, John, Andy, and the rest on here enough!
It also occurred to me the other day that with an output shaft speed 7-15K, I might be able to use a CVT from a snow machine if I wanted to make a 30Lb 150 hp engine instead of a thrust engine. Me and the guys who work on our race team were joking the other day about putting this in the race car. (currently has 10 hp and will do about 40mph-we hit 50+ on downhill track sections. The car only weighs around 350lbs) I told them it would burn around 20 gal/hr, but they would run out of underwear before fuel!! I don't think the gears would survive long without a fluid coupling somewhere in the drivetrain though... Monty
Hi Monty, And the inspiration goes back around to drag me out to the workshop and finish the boring wiring of the bike when I read about all the great stuff you guys do, communities like this one are the best!  I hope you won´t abandon the turbofan plan for this engine, it is one of those projects a DIY:er dreams about doing one day. Cheers! /Anders |
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monty
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Currently being spanked by mother nature.......
Joined: September 2018
Posts: 400
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Post by monty on Jan 21, 2020 9:50:54 GMT -5
And the inspiration goes back around to drag me out to the workshop and finish the boring wiring of the bike when I read about all the great stuff you guys do, communities like this one are the best! I hope you won´t abandon the turbofan plan for this engine, it is one of those projects a DIY:er dreams about doing one day. Cheers! /Anders Anders,
No need to worry, I have no plans to abandon the fan. That is why I started this whole crazy project!
Monty
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monty
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Currently being spanked by mother nature.......
Joined: September 2018
Posts: 400
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Post by monty on Sept 6, 2020 21:33:45 GMT -5
I'm not dead!!
The current insanity of the world disrupted my work environment, and life just like everyone else. I was locked out of access to the shop at work for a long time, so I couldn't do anything on the turbofan. I've been exposed, quarantined, locked out....but so far haven't gotten sick. I also had to totally change/revamp my work situation. It's still a dogs breakfast of insanity......
Being locked out of the shop pushed me over the edge!! I've spent the entire time upgrading my home shop. My long dormant 5 axis project is nearing completion, the CNC turret lathe is wired up and operational, and I bought/re-furbed a Bridgeport manual mill. I'm still shopping for a manual lathe. I'm no longer reliant on the shop at work, and will soon have more capability at home than work. I didn't mean to go dark, but I was utterly and completely focused on getting the home shop up and running. LOTS of wiring.... I have done nothing else for the last 6 months. Well.....I also fixed my driveway. In the end I needed all of this to be able to complete the fan project anyway....so I guess its been a good thing, but I'm sick of working on machines and wiring. I want to get back to casting and making jet engine parts!
By Christmas I hope to be back in the saddle with everything operational.
Glad to see you guys are still at it.
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monty
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Currently being spanked by mother nature.......
Joined: September 2018
Posts: 400
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Post by monty on Sept 6, 2020 22:20:42 GMT -5
Some of what I've been up to:
A lot of fiddly tiny wiring and building machine controls...
Chasing Error#2.....
Finally powering things up and calibrating everything, still have a lot to do, but getting closer:
The lathe will make things easier!
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Post by azwood on Sept 6, 2020 22:57:38 GMT -5
It's a strange time for sure it's taking its toll on everyone glad you're still trying it's all we can do or go insane
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Post by racket on Sept 6, 2020 23:28:36 GMT -5
Hi Monty
Good to hear you're still with us :-)
The US has had a rough time of this pandemic , stay safe , we all want to see your project completed .
LOL, with machines like that at home you'll never want to go back to work
Cheers
John
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monty
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Currently being spanked by mother nature.......
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Post by monty on Sept 7, 2020 21:28:29 GMT -5
It's a strange time for sure it's taking its toll on everyone glad you're still trying it's all we can do or go insane Indeed Azwood....what else are we going to do, but put our heads down and work through it....strange times.... |
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monty
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Currently being spanked by mother nature.......
Joined: September 2018
Posts: 400
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Post by monty on Sept 7, 2020 21:31:14 GMT -5
LOL, with machines like that at home you'll never want to go back to work Well John....as usual you are directly over target, and have delivered the proton torpedos down the shaft straight to the reactor core! It's really hard to get motivated to run the face mask/shield social distance gauntlet when I could just play with the fun stuff in my shop....
Monty
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monty
Senior Member
Currently being spanked by mother nature.......
Joined: September 2018
Posts: 400
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Post by monty on Apr 9, 2021 17:30:24 GMT -5
I was hoping this would be the weekend I got to say I'm now back to machining engine parts. Alas it was not to be. I have the 5 axis dialed in and operational. What a monumental task that has been. I still need to finish up the man machine interface touch screen. That's almost done. The table is aligned with the C axis, the work offset for the center is done, the table is shimmed level to within .0003 in. The TIR on the 4 jaw for holding parts on the table is under a tenth....Then I started measuring the TIR repeatability on the spindle. My MT3 drawbar adapter just isn't going to cut it. Had to drill out the epoxy, remove the draw bar, and now I'm back to the drawing board. I'll need to make a new collet and drawbar retainer. I've got that mostly designed just have to make it now.I was hoping to avoid that because the collet needs to be hardened. It also has threads. That means it has to be machined soft, hardened, and then ground. Then I have to slit it after hardening....or I need to get a carbide internal threading tool....anyway a pain.
Getting reaaaaaalllllyyyyy close though.
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Post by racket on Apr 9, 2021 18:56:33 GMT -5
Hi Monty
LOL.....Almost close enough to start tasteing the cutting oil :-)
Its been a long year for everyone , the enthusiasm has been drained from so many , hopefully things are turning the corner and we'll all be getting back to "normal" ,......from the relative "safety" of life here in Oz with minimal deaths from the pandemic one can only imagine how bad its been for so many :-(
Theres a lotta guys wanting to see your engine come to life , and its not just us Members here .
Cheers
John
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