It works !

masonsailor2 · Post by **masonsailor2** » Tue Mar 01, 2016 5:06 pm

I needed to slow down the band saw to cut the brass for the codex part of the jewelry armoir and tried to order a speed reducer from the MS with no luck. Soooo it was time to build one. $100 worth of parts and about three hour assembly time. It now runs at less than 100 RPM at "slow". An added benefit is that I use that machine as a disc sanding station and was always having to disconnect the band saw to speed up the power head to disc sanding speed. Now when the band saw is running at B speed which is where I use it for general woodworking the disc sander is running at a normal disc sanding speed.
Paul
https://youtu.be/nKE4ZAuxN-c

dusty · Post by **dusty** » Tue Mar 01, 2016 5:45 pm

Looks good. You now have an infinite selection of speeds available to you. Just change pulley ratios.

tomsalwasser · Post by **tomsalwasser** » Tue Mar 01, 2016 5:46 pm

Paul, simplicity is the essence of brilliance. Great work!

reubenjames · Post by **reubenjames** » Tue Mar 01, 2016 5:57 pm

Awesome. Reminds me of an article Popular Mechanics ran in 1960 (Google Books has all of their magazines archived and searchable up to 2005).

Always amazed by people who can come up with this stuff!

oldiron · Post by **oldiron** » Tue Mar 01, 2016 11:22 pm

Way to go Paul!!! Excellent job... You could easily cut plastics with the slower speed...

Mike

tomsalwasser · Post by **tomsalwasser** » Wed Mar 02, 2016 6:07 am

reubenjames wrote:Awesome. Reminds me of an article Popular Mechanics ran in 1960 (Google Books has all of their magazines archived and searchable up to 2005). Always amazed by people who can come up with this stuff!

Thanks for the link Alec, I did not know those old magazines were available from the google.

tomsalwasser · Post by **tomsalwasser** » Wed Mar 02, 2016 6:14 am

masonsailor2 wrote: $100 worth of parts and about three hour assembly time. It now runs at less than 100 RPM at "slow". Paul https://youtu.be/nKE4ZAuxN-c

Paul, can I get a parts list and source? Thanks!

algale · Post by **algale** » Wed Mar 02, 2016 6:30 am

Nice piece of engineering there!

dusty · Post by **dusty** » Wed Mar 02, 2016 8:36 am

Paul, would you please consider posting the diameter of the pulleys that you used for this. I am sure there are several of us that would like to replicate what you have achieved.

When you do operate this, do you go all the way to SLOW speed. I try not to do that. I prefer to keep some margin between my settings and what the Mark V is advertised to be capable of.

If I was doing this, I would use a tachometer to set the drive speed at 800rpm (as measured by the tachometer rather than using the Mark V dial indications)..

Sazerac81 · Post by **Sazerac81** » Wed Mar 02, 2016 10:43 am

Unable to retrieve.

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