Gallery, Projects and General > Project Logs

a nine cylinder radial engine, plans by "ageless engines"

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NickG:
nice work on the gears madjack - fantastic project this. I doubt if I'll ever have the skills or patience to make my own gears.

Nick

madjackghengis:
Hi all, and for you Nick, that is the first time I've ever cut a complete gear using proper equipment, and it actually engages with correct backlash, too.  More parts made, working on the gear train and cam drive to get it out of the way of moving forward with the multi-piece crank, which I expect to have fun with, especially drilling the oil passages.

making a stub arbor for turning the o.d. of the cam gear, and clearance for the cam bearing

the cam gear, note the internal teeth, these will engage with the pinion on the jack shaft

the cam gear in place on the stub arbor waiting to be clamped

cam gear clamped on stub arbor

cam gear machined, clearanced for the cam bearing

another view of gear on arbor

drilling holes in the cam retention plate, this hole is for the outer jack shaft bushing

boring the mainshaft clearance hole in the cam retaining plate

retaining plate completed.  Outside three holes will hold cam retaining bearing posts with the three inner holes sitting on stanchions, with screws through the stanchions, to fix the plate in proper place

cam retaining plate, jackshaft with gears, and the cam gear, relative to each other.  We shall see what a new day brings forth, hopefully some successful work on getting the crank ready and working.  Thanks for all the comments, it is almost as good as hanging around a coffee pot and exchanging views, or a tea pot, for those so inclined. Mad Jack :beer:

Stormin:
Fantastic work!
I'm intrigued to know how you machined the internal teeth on the cam gear. Was it using a shaper or some tool post mounted bit in the lathe?

Bernd:
Yah Jack, how did you make those internal gears.  :scratch:

You din't buy it did you?  :wack: With all that work your doing I just can't see you purchasing a gear.  :beer:

Bernd

sorveltaja:
Internal gears always get my attention. How was yours made? By broaching perhaps?

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