Author Topic: Travis Steam Engine 2 X Size  (Read 6525 times)

Offline yogi

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Re: Travis Steam Engine 2 X Size
« Reply #45 on: April 03, 2019, 01:00:11 AM »
 Looking good!

:popcorn: :popcorn: :popcorn:


Offline Dave Otto

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Re: Travis Steam Engine 2 X Size
« Reply #46 on: April 03, 2019, 01:12:38 AM »
Very nice work as usual Brian.  :ThumbsUp:


Dave

Offline toolznthings

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Re: Travis Steam Engine 2 X Size
« Reply #47 on: April 03, 2019, 02:08:02 AM »
Thanks everyone :)
Thanks for the visit !
Brian

Offline gary.a.ayres

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Re: Travis Steam Engine 2 X Size
« Reply #48 on: April 03, 2019, 12:04:47 PM »
Great-looking parts!

Offline toolznthings

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Re: Travis Steam Engine 2 X Size
« Reply #49 on: April 07, 2019, 07:07:32 PM »
Machining the crankshaft spit center bearing support ..........

Machined to size the bearing support block from stock long enough to get the base and top cap.

Sawed and machined the overall lengths of the base and cap. Drilled and counter bored for 10-32 socket head cap screws.





Assembled the two parts clamped in the mill vise for alignment.



Set up the assembly and drilled and reamed for 1/16" dowel pins.





Next operation was to rough machine and finish bore on the split line for the bronze bearing that will be made.





Ready to machine the bearing to fit the block bore and the crankshaft .750" diameter center.



Thanks for the visit !
Brian

Online Ye-Ole Steam Dude

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Re: Travis Steam Engine 2 X Size
« Reply #50 on: April 07, 2019, 07:49:57 PM »
 :popcornsmall:

Offline b.lindsey

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Re: Travis Steam Engine 2 X Size
« Reply #51 on: April 07, 2019, 09:02:14 PM »
More nice progress and good looking parts as well Brian.

Bill

Offline toolznthings

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Re: Travis Steam Engine 2 X Size
« Reply #52 on: April 09, 2019, 03:38:54 PM »
Machining the bearing insert for the crankshaft center support.

Turned the O.D. of the bushings for a tight fit to the housing with the I.D. rough drilled. I parted off the bushing longer than needed.



At the mill I set up both bushings for milling to half the diameter. Checking with gauge block over the split.





With the inserts installed I finish bored for the crank pin diameter. The reason for this operation was to insure that I was exactly on the center line of the crank measured from the base plate. Everything will be doweled when in final location.



The final length of the insert is mill in relation to the thickness of the bearing support block, equal amount and centered. I left .005" per side clearance to the crank throws.



Finished results. Added dowels to each half to keep the inserts from moving.



Added note : Repeated this operation after I found a piece of 660 bronze stock I did not know I had. IMO 360 brass makes a poor bearing material and was not my first choice. Beside who doesn't like doing things over again ?   ::)



Thanks for the visit !
Brian

Offline crueby

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Re: Travis Steam Engine 2 X Size
« Reply #53 on: April 09, 2019, 04:54:47 PM »
Nicely done. And good to practise on the 360 before the bronze... Been there!
 :popcorn: :popcorn: :popcorn:

Offline bent

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Re: Travis Steam Engine 2 X Size
« Reply #54 on: April 09, 2019, 06:40:33 PM »
Phew, glad you found the bearing bronze.  Agree, the 360 brass would wear too quickly for you.  Good progress, keep it up! :popcorn:

Offline yogi

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Re: Travis Steam Engine 2 X Size
« Reply #55 on: April 10, 2019, 01:38:07 AM »
Coming along nicely Brian!
I always enjoy seeing your method of making parts.  :ThumbsUp: :ThumbsUp: :ThumbsUp:

Online Ye-Ole Steam Dude

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Re: Travis Steam Engine 2 X Size
« Reply #56 on: April 10, 2019, 08:53:55 AM »
Hello Brian,

Beautiful job on the bushing. However as straight as you made the crankshaft I don't think there will be much wear on that bushing.

Have a great day,
Thomas

Offline toolznthings

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Re: Travis Steam Engine 2 X Size
« Reply #57 on: April 12, 2019, 01:38:57 PM »
Dowel pins and some test assembly .....

Set up for drilling and tapping the base for the side plates.



Assembled the side plates to the base and added dowels at each end. The dowels are spaced differently so each plate only fits the matching end.



A couple of views with the crankshaft in place. Happy with the results ! Everything turns freely.  :)



Thanks for the visit !
Brian

Online Ye-Ole Steam Dude

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Re: Travis Steam Engine 2 X Size
« Reply #58 on: April 12, 2019, 04:12:08 PM »
Hello Brian,

Oh boy, now you have my blood pressure going way up. That is just plain old fashion BEAUTIFUL :praise2:, now I cannot wait to see a final assembly photo.

Have a great day,
Thomas


Offline bent

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Re: Travis Steam Engine 2 X Size
« Reply #59 on: April 12, 2019, 09:20:31 PM »
 :P
Glad you said it first, Thomas, but if anything that looks prettier than the original.  Very nice craftsmanship!