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9:59 PM
January 9, 2009
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Nice work Norman. Any chance you could post a short video? Do you have a smart phone that takes video?
Did you ever figure out how slow it goes now? Is she still around 40 rpm with the new pulleys?
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11:31 AM
November 11, 2010
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Tyler
I don't have one of those phones, I'm still in the dark ages on most of the tech. stuff.
The speed is right at 40 rpms. I'll have to take a video( very boring) of the speed reducer running. The design worked out very easy to make and can be made from aluminum or steel. It's easy to mount and remove. I think it will clear all of the lathes gearing for all thread cutting.
1:01 PM
November 11, 2010
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Here is a video of the speed reducer. My large pulley slipped on the mandrel while i was machining it so it wobbles some. Watching this will put you to sleep. The torque is very high at the spindle and would eat you alive if you get caught up in it.
If I'd used 5 hp B&S timing gear for all three gears there would be enough room to make the input pulley larger for a slower speed. I think 40 rpms should be plenty slow. This speed reducer will be a keeper for me, I'll even keep the first one just for the sake of having a spare reducer.
Now to make something besides tools for the lathe. I really want to make some kind of 4 stroke engine with all the normal internal parts exposed, maybe a v-twin?
6:16 PM
April 19, 2011
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Norman I share the appeal of building something besides tools for the lathe and mill for a change. Seems like that gets to be an all consuming project at times just making things to make other things with ??
And here I am waiting on it to cool down a bit so I can get back out there and work on my 5C chuck
9:52 PM
January 9, 2009
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Thanks for posting the video Norman.
Were you planning on drawing up this variation as well? I think it's the one I'd like to make for my lathe. It seems like an improvement over version 01.
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7:14 AM
November 11, 2010
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Tyler
I could do a white board drawing with measurements.
Yes it is much easier to build, again I hand fitted all of the parts no exact measurements, that's why my stuff looks so junkyard rough. this could be made with steel plate or 3/8" or 1/2" aluminum plate.
11:43 PM
January 9, 2009
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Hi Norman, sorry for the late reply. If you get a chance to white-board it – by all means, please do.
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