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Author Topic: building a band saw mill  (Read 6434 times)

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Offline cluckerplucker

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building a band saw mill
« on: November 04, 2003, 07:22:19 PM »
this is the second time for the question; I am building a bandsaw mill .I am ready to weld the tracks to a 23ft trailer I built. should I weld the log bunks to the track or to the  trailer frame to keep the log weight off the tracks? Also does any one know where I can get 5ft; long garage door screws to use for carriage up and down?
cecil

Offline D._Frederick

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Re: building a band saw mill
« Reply #1 on: November 04, 2003, 07:46:54 PM »
I would weld the track to the part of the frame that has the most rigidity, then you level the log bunks to the tracks. Check with outlets that sell bolts, the y can order the screws you want.

Offline DanG

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Re: building a band saw mill
« Reply #2 on: November 04, 2003, 07:49:03 PM »
Hi, cluckerplucker! We hadn't heard from you from a long time, but your name is sorta hard to forget. :D

Maybe it would help if you described, or, better yet, posted pics of the frame and log bunks. I'm having a little hard time picturing just what you're asking.  There are several among us who have built their own mills, so give it a little time, and one of'em will probably see your question and answer it.
Tell us some more about the mill.  :P Is it base on the Bill Reeks design?
"I don't feel like an old man.  I feel like a young man who has something wrong with him."  Dick Cavett
"Beat not thy sword into a plowshare, rather beat the sword of thine enemy into a plowshare."

Offline Tom

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Offline cluckerplucker

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Re: building a band saw mill
« Reply #4 on: November 05, 2003, 04:35:19 AM »
I tried to post the two different designs but it keep telling me to many bytes I will try again but I am computer illiteret. cluckerplucker
cecil

Offline Papa Dave

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Re: building a band saw mill
« Reply #5 on: November 05, 2003, 11:56:39 AM »
I will throw my two cents into the ring. I built my mill and posted it sometime ago on the forum. If you would like to see it, let me know and I can email it to you.

In my case I built a frame and welded the bunks to the frame. Then I took 1 inch angle and welded it to the top of the side rails of the frame. So, the bunks will be inside the carriage rails and will be higher, too.

In my case I took a line from one end of the carriage rail to the other and raised and lowered the rail and welded so it would be straight. That should be the last thing you weld, because everything you weld on the trailer will want to bend in one direction or another.

Offline cluckerplucker

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Re: building a band saw mill
« Reply #6 on: November 05, 2003, 05:29:02 PM »
 PD just got in was scrounging scrap yardsfor parts. found a nice 90% geargox I amgoing to use a vertical shaft eng, because I have 3 old mower with good motors.Iwill send you a pic of what I have done  Reg. Email I just cannot figure out how to do it on the forum . I would like to see how you built yours        Cecil         clarkefarm@msn.com :P
cecil

Offline UNCLEBUCK

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Re: building a band saw mill
« Reply #7 on: November 06, 2003, 02:53:52 PM »
 a place that sells scaffold equipment might have screw jacks you need , but I suppose you would need a fine thread for getting exact . they are strong and cheap and I welded them to my old circular mill tracks for leveling, just a thought ,  :P
UNCLEBUCK    bridge burner/bridge mender

Offline UNCLEBUCK

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Re: building a band saw mill
« Reply #8 on: November 06, 2003, 03:04:12 PM »
 I download picture from digicam, open microsoft picture-it, touch up the brightness etc.. then go to change page size then type in 3.50 x 3.50 in the boxes and hit finish and then save it to my pictures , then jpeg optimizer ,then open and find the pic , then slide the scale until it gets below 15000 then I click save in my documents so then its there whenever I want to use it for a forum pic, I hated posting pics until I realized that I wasnt reducing the picture size down to 3-1/2 x 3-1/2 , I didnt know what a pixel was like 350 pixels , hope this helps, now I cant stop posting pics   ;D
UNCLEBUCK    bridge burner/bridge mender

Offline PA

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Re: building a band saw mill
« Reply #9 on: November 07, 2003, 10:12:55 AM »
Hullo--First post here.. Been lurking for a long while.. Sure have been learning alot from you folks. Thanks for the info..

I bought a sawhead from Linn Lumber a couple months ago, and I'm at the point where I need to add the up and down screws for the sawhead. I've been considering using 1" or 3/4" allthread like the hardware store has, along with a coupling nut.. Linn Lumber uses a 1" coarse for his.. Will the finer thread on the threaded rod do OK? Any suggestions?

Thanks
PA

Offline raycon

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Re: building a band saw mill
« Reply #10 on: November 07, 2003, 10:43:13 AM »
I'd look for acme threaded rod and nut.
McMaster Carr will have it - a industrial hardware store will have it as well.
Unless thats what you're talking about.

Lot of stuff..

Offline Papa Dave

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Re: building a band saw mill
« Reply #11 on: November 07, 2003, 12:28:46 PM »
PA

You really need to use the course thread which is otherwise known as ACME thread. They sell left hand thread and right hand thread. I used right hand thread.

I bought mine at Wholesale tool and their number is 800-521-3420. That is just one place to get it, there are lots of industrial houses that carry it. You can get it 6 ft. long and with nuts.

I know a man that used 3\4 and I used 1inch when I built my mill. I like the 1 inch because you can put it in a lathe and turn the top to 3\4 and put a keyway in it. Then you can attach sprockets and chain to it.  ::)

Offline D._Frederick

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Re: building a band saw mill
« Reply #12 on: November 07, 2003, 12:46:54 PM »
PA,
I bought No.8 saw carriage from LINN LUMBER, they had used 1 inch X 8 treads per inch  rods to raise and lower saw head. I have not had any problem with the rods, but I oil the them with bar oil twice a day. I have a 1/3 hp gearmotor that I use to power the up/down.  If I was going to buy threaded rod for this application, I would use  1inch diameter 5 threads per inch rod, with ACME threads and a brass nut. The 8 threads per inch is too slow if you hand crank.

Offline PA

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Re: building a band saw mill
« Reply #13 on: November 08, 2003, 01:08:47 PM »
Thanks for the input fellas--sounds like ACME is what I'll use..  That 1/3 hp gear motor sounds like a deal a guy gave me from an old TV dish..  It's 12 volt, appx 3"x6", with a gear reduction. I have seen it on an E-Zgo golf cart powering a dump bed also,  so it may be strong enough. Is that what you have on yours D.F.? Would you have any picks you could shoot me?  Building this thing is kind of a strech for me. I'm not creative enough to get fancy on my own. But it sounds like a little extra work at this stage would save alot down the road..

Thanks
PA

Offline Danny_S

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Re: building a band saw mill
« Reply #14 on: November 08, 2003, 03:54:14 PM »
When I worked maintenance on a Dheil Moulder production line... I made a repair to a part, that worked like this, the rod turned in a threaded plate to lift a feed roller.... anyways, It always stripped out... I got creative, used a threaded rod coupler, a bearing, a horizontal bearing, and a sprocket to turn the nut. A little lathe work and this conglomeration worked good. It takes the tourque off of the rod while it is trying to lift...  You will have to use your imagination but this method worked well.  It turned the nut instead of turning the rod.

Just a method to consider....
Plasma cutting at Craig Manufacturing

Offline D._Frederick

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Re: building a band saw mill
« Reply #15 on: November 08, 2003, 08:05:28 PM »
PA,
My gear motor is 120volt ac 60rpm. I have the threaded rod extending about 4 Inches above the sprocket that ties the two lift rods together. I have an A size Vee belt pulley on the end of the threaded rod. I have a bracket that holds the gearmotor  that is hinged so that it keeps the Vee belt tight with the weight of the motor. I want the belt to slip if anything binds. It works well, but is a little on the slow side, @ 8 1/2 inches per minute, should be over 12.

Offline Papa Dave

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Re: building a band saw mill
« Reply #16 on: November 10, 2003, 06:52:14 AM »
PA

One thing to note is that you will need to put the ACME rods close to the frame that is to be lifted. In my case, it is about one inch. Then you can build a bracket to hold the nut and weld it to the head frame. The bracket needs to allow the nut to be able to move a little so there will not be any binding and the headrig goes up and down.

Well, I guess that is clear as mud ;D

Offline PA

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Re: building a band saw mill
« Reply #17 on: November 10, 2003, 11:36:34 AM »
OK--I can see where a little wiggle room would be needed.. How about the nut itself??  Linn Lumber shows a big brass block .. Is brass needed that much? I could prolly drill and tap a brass block if I really had to, but would prefer off the shelf stuff..I was thinking of one of those long coupling  acme nut with some ears welded on it to attach loosly to some angle on the slider..

PA

Offline D._Frederick

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Re: building a band saw mill
« Reply #18 on: November 10, 2003, 12:52:19 PM »
PA,
If you keep the threads well lubricated, you can get by using steel nuts on the ACME threads, if they are screwed while dry, they can freeze-up or cut out. Brass nuts would be better,  they are some what self lubricating.

Offline Papa Dave

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Re: building a band saw mill
« Reply #19 on: November 10, 2003, 01:46:01 PM »
PA
When you buy the rods, they also sell the big steel nuts. Not sure if they have the brass ones. I keep mine oiled and was looking at them yesterday and they still are snug and look like new. So, steel is fine, just keep the oil (not grease) on them. ;D



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