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Chris's Un-Ransome Tree Feller

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crueby:

--- Quote from: stevendavis on August 18, 2024, 01:48:35 PM ---Interesting project! Will any of the parts be cast?

--- End quote ---
No, all made from bar stock. Some will be silver soldered together.

crueby:
Started shaping down the rest of the cylinder parts. The small cap on the left is for the rear of the cylinder (the end away from the saw blade), and the larger one with the bored out center is the flange for the front end of the cylinder. The front end flange is larger since it needs to support the guide rod assembly as well as the piston rod.


Here they are test fit on the cylinder. The rear cap will bolt on lie normal, studs in the cylinder end going through the cap. The flange will be cross pinned onto the cylinder along with some loctite, and it will hold the studs for the outer cap.


Before maing the front cap or drilling any holes, I need to make another sleeve, this one for the middle of the cylinder to tae the trunnions the cylinder will pivot on, plus the connections to the valve chest and the traversing gear out the rear.

crueby:
Got the center ring bored out to fit over the cylinder this morning. It will hold the trunnions to pivot the cylinder, and also hold the valve blocks and the swing gear.


Drilled the hole for the trunnion bar, wanted it drilled through in one setup to ensure the two ends are in line with each other. I'll silver solder the bar in place, then cut out the center section. Hmmm, for now it looks sorta like a London Underground sign! The new shop elf trainees are checing it out.

crueby:
Got the trunnion bar silver soldered into the ring - took two sessions, by the time the first side was up to temperature and the solder flowed in, the flux on the other end had burned off and some soot built in. Cleaned it up in the pickle and redid the second end. Then trimmed out the center on the mill, straight cuts across, then put it on the lathe to turn the nubs left over down flush on the inside. Here it is slipped over the cylinder again.

Next I can mill the flats on the ring for the other parts to mount to, and start drilling/tapping all the holes to hold everything together.

cnr6400:
 :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:

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