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Homemade Band Saw #8: It's Alive!!

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Blog entry by dakremer posted 370 days ago 2074 reads 0 times favorited 13 comments Add to Favorites Watch
« Part 7: Wheels Part 8 of Homemade Band Saw series Part 9: Bandsaw running... »

This was my first time turning the bandsaw on. So far so good. In my previous blog entry I stated that I might have to remake the top wheel – from the video you can see there’s a pretty good amount of wobble in it compared to the bottom wheel. I’m not sure if this will effect the performance or not since the wobble doesnt effect the crown of the wheel (you can see the blade stays nice and straight).

It’s a little loud right now because I dont have the rubber around the wheels yet, and there’s a clicking in the drive belt because it isnt tight enough.

It felt good turning it on for the first time! I can’t wait to finish it up and get using it!

The video isnt embedding like its supposed to. Here is the youtube link http://www.youtube.com/watch?v=0Z8vZniiQ1c

-- Hey you dang woodchucks, quit chucking my wood!!!!



13 comments so far

View dakremer's profile

dakremer

2449 posts in 1723 days


#1 posted 370 days ago

I’m not sure why the video isnt showing up…..I’ll post the youtube link at the bottom

-- Hey you dang woodchucks, quit chucking my wood!!!!

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dakremer

2449 posts in 1723 days


#2 posted 370 days ago

-- Hey you dang woodchucks, quit chucking my wood!!!!

View Wally331's profile

Wally331

255 posts in 657 days


#3 posted 370 days ago

Very nice saw, it is a great feeling to see the saw run for the first time isn’t it? :D I built the same saw, You really have to make sure that there wheels are balanced as good as possible, what I thought was good ended up vibrating the saw a lot. After a little re-tuning it was fine.

And for the wheel wobble, on the bottom wheel I returned the crown when I had attached the wheel to the saw. I just set up a makeshift tool rest, it got rid of all the wobble for me.

View dakremer's profile

dakremer

2449 posts in 1723 days


#4 posted 370 days ago

the crown stays centered – thats not the problem. I think the problem is that there’s some warping in my wheel. I turned the wheel with the warping already present so the crown does stay centered. I’m just worried that the wobble in the wheel will cause too much vibration. It doesnt seem to at this point, but I’m not sure about in the future….

-- Hey you dang woodchucks, quit chucking my wood!!!!

View dbhost's profile

dbhost

5378 posts in 1864 days


#5 posted 370 days ago

Very cool…

-- My workshop blog can be found at http://daves-workshop.blogspot.com

View Jim Jakosh's profile

Jim Jakosh

11316 posts in 1737 days


#6 posted 370 days ago

Hi Doug, nice going so far. That is a neat looking saw. I am amazed that that blade stays on the crown. Most wheels are flat with a big rubber band around them.
I had a crazy idea but it might work. If a fella were to set up a tool rest in just the right area so as not to get in trouble from the blade, you could take light cuts on both wheels with lathe tool from both sides to true them up. But if the wobble is due to wood movement, it may come back when the humidity changes.
With the wheel wobbling, does the blade itself wobble. it did not look to be in the video!

-- Jim Jakosh.....Practical Wood Products...........Learn something new every day!! Variety is the Spice of Life!!

View dakremer's profile

dakremer

2449 posts in 1723 days


#7 posted 370 days ago

Hey Jim. The blade itself does not wobble because it stays on the crown of the wheel! So I dont think the wobble of the wheel effects the blade. I’m really just worried about vibration of the whole bandsaw, and maybe with that wobble the wheel might wear down faster? Not sure….

-- Hey you dang woodchucks, quit chucking my wood!!!!

View Scott's profile

Scott

101 posts in 856 days


#8 posted 369 days ago

I’m guessing that with the wood wheels directly contacting the blade, there’s not enough tension across the contact area to move the blade laterally so it’s just staying relatively centered on its own.

Although the blade itself would have a different spot contacting the crown at any given time, so it wouldn’t have consistent support behind any one spot on the blade. I’d wonder if that will cause a less clean cut when you run something through it?

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dakremer

2449 posts in 1723 days


#9 posted 369 days ago

Scott. Woodgears has a great video on why a belt (or blade in this instance) stays on top if a crown. Here is the link – http://woodgears.ca/bandsaw/crowned_pulleys.html

The crown on the wheel does not wobble. I turned the wheel with the wobble already present, so the crown is stays perfectly true. You can see in the video that the blade does not move at all

-- Hey you dang woodchucks, quit chucking my wood!!!!

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Scott

101 posts in 856 days


#10 posted 369 days ago

Ah sorry, missed your comment about the crown being turned afterwards. So everything important about the setup is straight. I guess that shouldn’t be a problem then.

View Rick M.'s profile

Rick M.

3875 posts in 1012 days


#11 posted 369 days ago

Youtube embedding has been disabled, something to do with spammers.

Nice progress on the wheels!

-- |Statistics show that 100% of people bitten by a snake were close to it.|

View cutmantom's profile

cutmantom

274 posts in 1667 days


#12 posted 369 days ago

looks like it is smooth running, in order to change the belt do you have to take off the blade?

View dakremer's profile

dakremer

2449 posts in 1723 days


#13 posted 369 days ago

Yes cutman

-- Hey you dang woodchucks, quit chucking my wood!!!!

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