This is good to know. I will be putting a pretty aluminum housing over the motor so if needed , I can put a little computer fan in the end of the motor housing. But I don't think It will run long enough at a time to worry about it.your treadmill motor will get pretty hot without any forced air cooling. I ran my 1hp one for a while without a fan and it got too hot to touch after an hours use. Then again, you might not be using it for long enough stretches for it to matter.
oh, and beautiful spindle too!
LOL.... I'm old.... I wanted one I could lift. Plus , I cant see hanging something that weighs half as much as my lathe on the tool post. It just don't seem right. I will remove the compound and the grinder will mount directly on the saddle. there will be height adjustment and it will swivel to an angle. Watch...I think you will like it.Nice design, Mark. I like the compact nature of it. Brilliant idea to use/modify an existing spindle.
I have a design I've been working on for a long time. When I can, I'll execute it and post as a project. I am pretty sure mine will outweigh yours a good bit lol.
It is an oil fill hole. the spindle is filled 1/3 with high grade turbine oil to lube the bearings. The plug has a .031" hole in it for a vent to keep pressure from building in the spindle. With out the vent oil will get pushed out passed the oil seals.I have to ask
What is the brass plug in the spindle housing for?
Ray
I chose to take the compound off for a couple of reasons. I figure the setup is more solid. The more you stack the more things flex. .001 feed on the saddle will do the same. The compound is easy to remove ( loosen two set screws and lift off is just as easy as removing the tool post). Doing this gives me more room than mounting on the compound. With the compound, there is only about 1 1/2" to spindle center. It is hard to keep the unit that thin. Without the compound, there is about 2 5/8" to spindle center.Nice build Mark. I don't use my tool post grinder often, but when I do I use it on the compound, and have it swung 5.7 degrees from the spindle axis. 0.001 on the compound gives 0.0001 in feed.
Greg
This is good to know. I will be putting a pretty aluminum housing over the motor so if needed , I can put a little computer fan in the end of the motor housing. But I don't think It will run long enough at a time to worry about it.