My woodwork - Page 12 - Scroll Saw Woodworking & Crafts Message Board

Khalid · 03-09-2008, 06:58 PM

Hmmm... It is great honor to talk to u

... Its nice u have hand on experience of modern gas turbines engines...

I am building the small turbine with 10 lb thrust... it will have fixed vanes NGV (material: aerospace grade Aluminium)and the turbine wheell will be Inconel 800H material.. u better know the temperatures at the turbine... I am planning to use the compressor of turbo generator...

PuzzledMoose · 03-09-2008, 07:11 PM

I'm completely lost on the engineering aspects of this but you seem to be doing some really interesting work there, Khalid.

Neal Moore · 03-09-2008, 07:28 PM

Khalid...You can use an old automobile turbocharger as the compressor for the turbine. A lot of people have experimented with that with pretty good results. As far as temperature goes you will have to measure the temperature at the "waste heat" or exhaust end because inlet temps will be so high you can't find a thermocouple, that you can afford, that will stand up to to those temperatures. Correlating exhaust temperatures to inlet temperatures will give you the best indication of turbine efficiency and reliability. I apologize to all the scrollers here for going so far out in left field. Been fun talking "shop" on this but I'm done now....LOL!!!

Khalid · 03-09-2008, 07:34 PM

Quote:

Originally Posted by PuzzledMoose

I'm completely lost on the engineering aspects of this but you seem to be doing some really interesting work there, Khalid.

Thanks for ur kind words

...I am doing nothing(as compare to your fantastic work) just discovering the things... me just experimenting with different ideas...
Again thanks for compliments...

Khalid · 03-09-2008, 07:38 PM

Neal

Ya i am using the compressor wheel from old turbocharger...I am planning to bring my jet engine to 25000RPM with air compressor and then ignite the fuel in combustion chamber to get 125000RPM... but before this i have to balance the rotor...so i have to make a good balancing system...

Minnesota scroller · 03-09-2008, 09:39 PM

Quote:

Originally Posted by Rivari

with REAL woodworking each finished piece holds it's own identity.

How about when you stack cut?

PuzzledMoose · 03-09-2008, 10:28 PM

Quote:
Originally Posted by Rivari
with REAL woodworking each finished piece holds it's own identity.

Quote:

Originally Posted by Minnesota scroller

How about when you stack cut?

I guess cabinet makers making identical kitchen units using hand tools aren't real woodworkers either then ... or furniture makers making identical legs for a table ..?

Plaquerd · 03-09-2008, 11:05 PM

Ian
There's a huge difference between stack cutting and hand making INDIVIDUAL components of cabinets and furniture. I know of no cabinet maker or furniture maker who can stack cut cabinets or "furniture".

True hand made furniture has no "identical" parts, each component is made one at a time and all have subtle differences.

Hand made "custom" cabinets are true wood working. The people who make them are true wood workers and it takes many years to acquire the skill to do so.

As far as "hand made" cabinets are concerned, now-a-days most are made with components hogged out on a CNC over head router and assembled by a worker who doesn't need to be a cabinet maker.

IMHO stack cutting is no more than mass produced identical pieces....except for grain pattern.

As an aside..........CNC isn't the golden egg of the "machining world", it is only as good as the programmer and the operator. Mistakes are made with them just as with any other tool used by humans. I've tried to assemble pieces off a CNC router that were cut wrong...........in the garbage they go.

This is only my opinion on these subjects, no offence is intended.

Minnesota scroller · 03-09-2008, 11:38 PM

Khalid, I personally really don't care how how you make your wood projects. You have your own talents, as scrollers and turners do. What counts to me, is the end result. Although I can scroll some pretty decent portraits, I've never considered myself a real woodworker. I've always been one to measure once and cut twice, and still being too short.

However, I do like some of your projects, especially the butterfly and scorpion. I downloaded the butterfly (thanks), but how the heck do you put the pieces together? It looks like a real puzzle. Enjoy "working" with your wood.

Jim Finn · 03-10-2008, 01:06 AM

I just now read all 119 posts and find it interesting that some folks worry about making things quickly and others about the finished product. I personaly enjoy the "doing" of the hobby and do not think of the production speed so much and do not consider the time it takes nor the energy expended as "work" I am not an artist I consider myself a "craftsman"