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Author Topic: band saw mill project  (Read 2479 times)

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Offline Al_Smith

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Re: band saw mill project
« Reply #20 on: January 17, 2019, 07:10:15 AM »
I gotta say that's a heavy duty Judy .I don't think anything is going to bend .Lookin good . ;D

Online Crusarius

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Re: band saw mill project
« Reply #21 on: January 17, 2019, 10:08:09 AM »
aha. I knew by the cage work on the mill you had to have something :)

Nice toys.

Online Southside logger

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Re: band saw mill project
« Reply #22 on: January 17, 2019, 10:19:00 AM »
I like the idea of a double cut mill, always have, has anyone seen how the boards are removed from a horizontal double cut mill?  
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Re: band saw mill project
« Reply #23 on: January 17, 2019, 10:24:05 AM »
I was very intrigued with the idea but was trying to figure out a way to do it with 2 blades. Wasn't really working out in my head so I gave up.

Offline ljohnsaw

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Re: band saw mill project
« Reply #24 on: January 17, 2019, 10:38:27 AM »
I like the idea of a double cut mill, always have, has anyone seen how the boards are removed from a horizontal double cut mill?  
I would say like you normally do with a manual mill, to the side.  Or, use a drag back that takes two boards at the same time.  i.e. cut forward, drop, cut backward bringing first board back, drop cut forward, drop, cut backward bringing two boards back...
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Online Southside logger

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Re: band saw mill project
« Reply #25 on: January 17, 2019, 03:47:47 PM »
The issue I see with the drag back is if the boards are a different thickness then you are  going to hang on the one you are back cutting if it is a thicker cut than the foward cut.  To the side defeats the purpose of cutting both ways I would think.  Maybe that's why double cuts are usually angled to the side with a take away conveyor.  
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Offline Al_Smith

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Re: band saw mill project
« Reply #26 on: January 17, 2019, 04:53:53 PM »
In regards to the urethane ,it is really tough stuff .We used them for traction rollers to move cast iron blocks for large v8 engine blocks at one time on roller conveyers in an automobile engine plant and they held up very well .Fact I used 4" rollers on a DIY seam former for standing seam roofing .

Offline Vautour

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Re: band saw mill project
« Reply #27 on: January 18, 2019, 06:54:31 AM »
        got tagged yesterday.... don't know what this means.. can someone explain this?
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Offline charles mann

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Re: band saw mill project
« Reply #28 on: January 18, 2019, 09:19:10 AM »
       got tagged yesterday.... don't know what this means.. can someone explain this?


It means that someone used your screen name to get your attention on something. 

@Vautour 
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Offline Vautour

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Re: band saw mill project
« Reply #29 on: March 05, 2019, 07:19:58 PM »
 

 Hi guys...i'm in the process of building my band guide wheels and wondering what size bearings i should use?... guild wheels are 2.5".. i have bearings with a 5/8 inside bore but could go bigger.. maybe at lest 3/4" ID...not sure what most manufactures use??... tks
the Gospel is WANTED by the people in 52 Countries but made illegal by their Government

Offline Bandmill Bandit

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Re: band saw mill project
« Reply #30 on: March 05, 2019, 08:12:37 PM »
i will go dig through my parts bin and check but I think mine are 6202s  with 2 in each roller. There is a double race version that works better in my opinion but doesn't work well if you want to make them greaseble   
If you ain't livin on the edge you are takin up way to much room. Of course at my age if I get too close to that edge any more theres a good chance I may fall off.
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Re: band saw mill project
« Reply #31 on: March 07, 2019, 04:40:26 AM »
i will go dig through my parts bin and check but I think mine are 6202s  with 2 in each roller. There is a double race version that works better in my opinion but doesn't work well if you want to make them greaseble  


.. tks Bandit... was checking what size 6202s are and seems to be 15mm or 5/8''... so since i had bigger rollers i bought the 6203s which are 3/4''...not sure how greaseble bearing work but looking at videos of cooks and think the two bearing are squezzed together and grease is pumped on both sides to catch the saw dust... i think :-\  
the Gospel is WANTED by the people in 52 Countries but made illegal by their Government

Offline Bandmill Bandit

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Re: band saw mill project
« Reply #32 on: March 09, 2019, 09:36:03 AM »
6203 s is what mine are. 

To make them greaseable you take out 2 of the seals and then install the bearing so that the missing seals are in the center of the roller seperated either by a spacer OR with the roller machined with a shoulder rim that the bearings seat against when installed from either side of the roller. drill the bolt to the proper depth and drill a small hole (1/8th is lots) through the the bolt to T to the horizontal hole and you got a grease able roller. 

grease in that location CAN be a more of a problem then a solution as over grease will wreck the seals and allow sawdust to get in the bearing. OVER GREASED bearing are a far more costly issue then permanently sealed HIGH GRADE bearings hands down.         
If you ain't livin on the edge you are takin up way to much room. Of course at my age if I get too close to that edge any more theres a good chance I may fall off.
2001 Dodge 1500 4x4. 2018 F150
2007 Woodmizer LT40HDG28 almost Super
2 Logrite 36 inch cant hooks and a bunch of stuff I built myself

Offline Vautour

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Re: band saw mill project
« Reply #33 on: March 09, 2019, 02:40:24 PM »
   

just finished turning my roller guides....@Bandit... that's what i was thinking of doing.. but you must have small hole in the spacer for the grease to go thru... i was also thinking about making small holes (seep holes)on the outside of the rubber seals as you grease you will release some pressure and add grease on both sides of the bearing assembly and with washers on both sides to hold the used grease there to captivate the saw dust...hmmm 
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Offline Magicman

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Re: band saw mill project
« Reply #34 on: March 09, 2019, 02:45:27 PM »
I am wondering how any metal that is soft enough to turn will be hard enough to serve as blade guides?
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Offline Vautour

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Re: band saw mill project
« Reply #35 on: March 09, 2019, 03:09:18 PM »
@ Magicman was thinking about that too.... gonna check my machinist friend about that... tks for bringing it up..  :)
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Online millwright

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Re: band saw mill project
« Reply #36 on: March 09, 2019, 04:40:32 PM »
There is a product called case nite that you can use to harden the OD of your rollers. It’s a powder and you heat the steel then dip it in the powder. It works

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Re: band saw mill project
« Reply #37 on: March 09, 2019, 06:15:46 PM »
I would stick with sealed bearings and be done with it. Most cars on the road have sealed bearings and have very little issues with quite a few more miles on them.

as for hard enough. anything will wear out they may just wear out a little sooner. I would not be overly concerned. you can always buy a set of rollers only.

What material did you use for the rollers?

Offline Bandmill Bandit

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Re: band saw mill project
« Reply #38 on: March 09, 2019, 08:52:01 PM »
Case hardening works well in a lot of applications and is not real difficult to do. The secret is getting the rollers to right temp EVENLY. can be done with a rosebud heating tip on a torch or a small forge. 

As for bearings, the best you can get in SKF or NTN are my go to bearings and what I keep in my parts box.

I may be possible to get 2 double row bearing in those rollers. NOT that you'd really need that but the mill may wear out before those bearings would if you did it that way. They definitely would not over heat easily.   
If you ain't livin on the edge you are takin up way to much room. Of course at my age if I get too close to that edge any more theres a good chance I may fall off.
2001 Dodge 1500 4x4. 2018 F150
2007 Woodmizer LT40HDG28 almost Super
2 Logrite 36 inch cant hooks and a bunch of stuff I built myself

Offline RAYAR

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Re: band saw mill project
« Reply #39 on: March 09, 2019, 09:47:38 PM »
Nice mill project you're building. Just found your thread here and will be following it. I'm just an hour south of you.


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