way to go Roy!! great looking set up tc
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way to go Roy!! great looking set up tc
Ray, Thank You! Coming from a 4th generation Professional Machinist that is one of the highest compliments I've ever received! I know what a fussy SOB you are (if anyone hasn't seen the details that he puts into his brushes you won't understand).Quote:
Originally Posted by walleyeman
I"m planning on trying some of the polishing compounds out on some chisels, pliers, knives etc to see how abrasive they are. I purchased some samples of different compounds and they are not greaseless.
I would like to point out that I just roll the belts from one pulley to the next and no tensioner is required. I'd tried to 'break in' the belts and then pulled them tight to locate where I should drill for the Speed Reducer and the Motor and it seems to have worked. They did stretch a tiny bit more but not bad. The 4" to 4" is much looser than the others due to there not being a difference in size between the pulleys. But with the buffer running and having leather gloves on I can't make the belts slip or the machine to start to bog down while gripping the shaft as tightly as I can.
To say that I'm pleased so far would be an understatement!
Again Ray, Thank you for the support! :tu :bow: :tu :bow: :tu :bow:
Here's an update on the variable speed buffer.
I've been playing with it and I believe that I'd slowed things down a bit too much :shrug:
So I removed the 2" driver pulley from the motor and replaced it with a cast iron 3" that I had originally intended to use. The slots in the base of the motor had plenty of movement to accommodate the larger pulley and still use the 28" belt. I think that I now have it where I want it.
Here's what I posted about the original setup and the speeds.
Courtesy of PWH/Here's how the speeds should work. The attached link is a Wonderful Tool. You plug in the motor speed, the driver pulley size, the driven pulley size and the distance between the shafts and it not only gives you the RPM of the driven shaft but what size belt you will need.
The motor is a 1725 RPM 3/4 HP that I've had laying around for years. The Driver Pulley on the motor is 2". The Driven Pulley on the Speed Reducer is 5".
Using the online calculator that PWH supplied the shaft for the speed reducer should be turning at 690 RPM.
Then the 2" to the 6" should be 230 RPM.
The 3" to the 5" should be 414 RPM.
The 4" to 4" should be 690 RPM
The 5" to 3" should be 1150 RPM.
I can also 'play' with the pulleys on the motor and the first driven pulley to change either faster or slower.
Here's the new speeds:
The speed reducer should be turning at 1035 RPM.
The 2" to 6" should be 345 RPM
The 3" to 5" should be 621 RPM
The 4" to 4" should be 1035 RPM
The 5" to 3" should be 1725 RPM
I'll play some more but so far I think that it's going to work very well.
Thanks for looking. :tu
So Roy , you can basically run pulleys at opposing ends with no probs ? Looks like the belt would run in a figure 8 ?Quote:
Originally Posted by cudarunner
Mate, No Figure 8's etc. I 'roll' the belt off of the first large pulley (that causes a lot of slack) then roll the belt off of the smaller pulley then re-roll to the next pulleys (that re-tightens the belt) and repeat pulley to pulley.Quote:
Originally Posted by onimaru55
I roll the belt off of the 5"/2" pulley then re-roll it onto the 4"/3" pulley etc.
The belts are Always In Direct Straight On Alinement When Operating.
It's hard to describe but the basic act has been in use for many years. When I was 14 I worked for a machinist after school and his go to lathe was run by flat leather belts and the speeds where changed while the machine was running. You just used your hand to push the belt either right or left to increase or decrease speeds.
I hope this helps you and others to envision. :hmmm:
I know that my oldest daughter can make videos maybe she can help make one of how this all works. :shrug:
Ahh got it ! Thanx Roy. No need for the combinations I was imagining.
Looks great! So,(as in my drill press) I lazily do everything at 240 rpm. What speed do you predict you will let the belt stay?
Will you vary it for different things? Curious! I was thinking of doing something similar! Are you using this for compounds, or just polishing?
Tom, That's the Beauty of the variable speeds. I can experiment and find what speed works best for a particular application.Quote:
Originally Posted by sharptonn
As I've said I have been playing and using the 345 RPM worked great for polishing up some scales with some Bolsters using the finest compound that I'd purchased. It worked really well, the slow speed allowed control and I never felt that the razor would be 'Grabbed' out of my hands.
It's going to be another one of those long strange trips but I'm sure that I'll enjoy the journey! :tu
So 345 is the magic number, so far? :D
325? Tom, I'm not planning on dying anytime soon! There will be many, many, many experiments before I can post any results regarding recommendations. Hell, I still need to figure out how the polishers that I purchased will work at different speeds. :hmmm:Quote:
Originally Posted by sharptonn
If I can figure out how to prolong the shelf life of greaseless I will also try those. :shrug: