Model Engine Maker
Supporting => Engine Ancillaries => Topic started by: Bobsmodels on October 01, 2014, 11:28:59 PM
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See two posts down for entire original post on another site.
Hi
Just thought I would post a note here. I have a 1/4 scale 24hp Minneapolis traction engine that needed the gears on the governor repaired. I was getting assistance on the SmokStak traction engine site and if you want to see my solution go to this thread. There is a youtube link and two PDF files detailing the gear layout using Law's book. It also details the approach I finally took (using miter gears).
Again just an FYI for those who have one of these engines.
http://www.smokstak.com/forum/showthread.php?p=1089932#post1089932
Bob
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Bob
The PDFs are not available unless you register
Could you not link them here
Stuart
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Stuart
I was not aware of that, here is the entire post.
Bob
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Hi all:
First, I want to thank all who helped out with ideas and information on this project.
To make a long story short I went from laying out and designing the gear using Law’s book on gear design to a final answer that used readily available miter gears. I opted for miter gears rather than bevel gears for a number of reasons. Primarily they required the least amount of effort to implement. The idea for miter gears came from a fellow modeler who pointed out some other approaches to gears.
The project is done and the governor works just fine as you can see in the video link.
https://www.youtube.com/watch?v=VNXmA2ebE58
I have attached two PDF files due to site size restrictions with all the information I gathered.
The first PDF file starts with a discussion of choices. There is a complete layout for the 22 and 33 teeth gears for those who might want to try that approach. Then there are pictures of the ¼ Scale Minneapolis setup at the Rock River Thresheree.
The second PDF file contains a detailed discussion of the miter gear choice and of how I made the changes and the specific gears I used (lots of pictures). The total time from when the gears arrived to running on the engine was two days, not all of which was in the shop. I think I spent about 12 hours on the project once the approach was chosen.
Thanks again
Bob
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Thanks Bob
Stuart