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All Replies on Attach sprocket to threaded rod for Drum Sander build

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View RyanBWood's profile

Attach sprocket to threaded rod for Drum Sander build

by RyanBWood
posted 09-12-2018 02:11 PM


8 replies so far

View lumbering_on's profile

lumbering_on

578 posts in 885 days


#1 posted 09-12-2018 03:03 PM

Being from Ottawa, I feel your pain.

Have you checked out Mattias Wandel’s site? There’s a collection of sanders there.

https://www.woodgears.ca/sander/index.html

Best of luck.

View RyanBWood's profile

RyanBWood

8 posts in 288 days


#2 posted 09-12-2018 03:38 PM

yah, lots of great ideas there too. but not detailed enough on what I was looking for.

I have never used pulleys or sprockets, so no experience in the mounting to the drive rods or bearings. bit of a learning curve on this one for me.

-- Full time kid chauffeur, woodworking on the side.

View TheFridge's profile

TheFridge

10858 posts in 1881 days


#3 posted 09-12-2018 04:53 PM

I’ve used sprockets on threaded rod. It sucked.

-- Shooting down the walls of heartache. Bang bang. I am. The warrior.

View RyanBWood's profile

RyanBWood

8 posts in 288 days


#4 posted 09-13-2018 02:19 PM

ok, but how did you use them and what do you think would make them work ? I would need it to work somehow.

what sucked about it ?

-- Full time kid chauffeur, woodworking on the side.

View MrRon's profile

MrRon

5496 posts in 3638 days


#5 posted 09-13-2018 04:12 PM

This place will have everything you need for your project at very low prices. https://www.surpluscenter.com/ They ship to Canada, but I don’t know the cost involved.

View HokieKen's profile

HokieKen

9594 posts in 1533 days


#6 posted 09-13-2018 06:26 PM

If I were mounting the sprockets on threaded rod, I think I’d grind flats for the set screws to seat on and use a file to make sure the flats were parallel to one another and the set screws. Another thought would be to fill the threads with JB Weld or similar and slide the sprocket over it a time or two while it’s wet to size it. Then you basically have a threaded rod with a solid end. Finally, If you can get a sprocket that has a bore diameter close to the minor diameter of your thread, you may be able to tap threads into the sprocket to fit on the rod. That’s highly dependent on how hard the sprocket is though.

-- Kenny, SW VA, Go Hokies!!!

View RyanBWood's profile

RyanBWood

8 posts in 288 days


#7 posted 09-13-2018 07:25 PM

I will probably go with surpluscenter for sure. prices are better.

i am leaning to do this:

Fixed bore sprocket with our without a key won’t matter
flattened spot for set screw
threaded filled with job weld and sprocket set in place
Lock nut on top and bottom.

Next, how to cap each end of the rod into a bushing / bearing to keep it from wobble and also allow easy rotation.

-- Full time kid chauffeur, woodworking on the side.

View DrDirt's profile

DrDirt

4558 posts in 4137 days


#8 posted 09-13-2018 07:31 PM

WHy sprockets? Most sanders went with belts and pulleys rather than a chain.

ANyway – For the threaded rod, you can take a grinder/Dremel and make a flat spot for a set screw

I personally would go pulleys, but even they need to be secured, so I would use the keyed shaft instead of a piece of allthread.

-- “The two most important days in your life are the day you are born and the day you find out why.” Mark Twain

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