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Author Topic: Crusarius’ sawmill build - started with Linn Lumber basic kit  (Read 14742 times)

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Offline Kbeitz

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Re: Crusarius’ sawmill build - started with Linn Lumber basic kit
« Reply #20 on: September 19, 2017, 07:58:26 PM »
Sorry... I did not see the side tracking bolts.
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Offline Crusarius

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Re: Crusarius’ sawmill build - started with Linn Lumber basic kit
« Reply #21 on: September 19, 2017, 08:54:35 PM »
no problem. they were not the easiest to see. and in the earlier pictures they did not exist.
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Offline Crusarius

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Re: Crusarius’ sawmill build - started with Linn Lumber basic kit
« Reply #22 on: September 20, 2017, 08:03:15 AM »
here you go KB, I think this will show it a little better. 3 of the pillow block bearings have one of these adjusters. The fourth has a piece of 1/4" keystock the bearing rests against. I am not sure why the kit was designed like that but so far it is working well.

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Re: Crusarius’ sawmill build - started with Linn Lumber basic kit
« Reply #23 on: September 20, 2017, 08:09:20 AM »
here you go KB, I think this will show it a little better. 3 of the pillow block bearings have one of these adjusters. The fourth has a piece of 1/4" keystock the bearing rests against. I am not sure why the kit was designed like that but so far it is working well.

(Image hidden from quote, click to view.)

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Offline Crusarius

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Re: Crusarius’ sawmill build - started with Linn Lumber basic kit
« Reply #24 on: September 20, 2017, 08:36:56 AM »
Fixed guide / drive wheel end of the saw frame.

The guide support is bolted to the main frame. The holes on the piece of angle iron were drilled to ¾” with a 3/8” bolt tapped into the tube behind. The cam bolt is to assist with alignment. The guide wheel is fixed to the angle. You can also see the head to one of the pillow block adjuster bolts. The blurry piece of round stock is slid into my engine stand so I had a nice easy way to work on the frame without having to constantly flip it over.


This is the same part looking at it from the drive wheel side.

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Offline Crusarius

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Re: Crusarius’ sawmill build - started with Linn Lumber basic kit
« Reply #25 on: September 20, 2017, 08:38:34 AM »
Hydraulic tensioner
You can see the hydraulic tensioner just resting on the saw frame. That is not the final location for it. You can also see the hydraulic ram pushing the tensioning sled. The holes you see in the top of the sawframe are for the engine / carriage mount. I have not started working on that yet.


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Offline Crusarius

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Re: Crusarius’ sawmill build - started with Linn Lumber basic kit
« Reply #26 on: September 20, 2017, 08:39:44 AM »
Adjustable guide end of the saw frame.
It is hard to see in this picture but there is a piece of ¼” key stock that the pillow block bearing is resting against. After taking a closer look at the pictures I think the reason the keystock is there instead of an adjuster is for clearance. The adjuster would interfere with the bolt holding the adjustable arm to the saw frame.
The adjustable guide arm is bolted to the saw frame with 3/8” bolts going through ¾” holes. The arm is bolted to the main sawmill frame through the square hole I cut into the saw frame previously. At first I was confused about this feature, then I realized before this was added when the blade breaks there would be nothing to stop the wheel from taking off. In this configuration when the blade breaks it should only move about ½” max.


The bolts on the sliding frame are there to keep the frame straight when changing blades. There is also a single bolt on the other side to take up the rest of the slack. The guide is in a slotted hole that uses the adjuster to set the correct location. The T bolt is for locking the arm in place. Currently I am brainstorming trying to figure out how to add a little more support to that arm. The ½” block you see on the back side of the guide is for the tensioner rod to press against. It is not in the correct location in this image.


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Offline Crusarius

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Re: Crusarius’ sawmill build - started with Linn Lumber basic kit
« Reply #27 on: September 20, 2017, 08:40:49 AM »
The arm is bolted on the same way as the fixed side. 3/8” bolts with ¾” holes. I am not sure how I am going to like trying to adjust these but we will see when I get to that point. Ignore the extra hole. That is there to lighten the frame. Truth is, I measured from the wrong datum line.





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Offline Crusarius

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Re: Crusarius’ sawmill build - started with Linn Lumber basic kit
« Reply #28 on: September 20, 2017, 08:41:58 AM »
This is how the frame is sitting now.


I am working on the carriage assembly currently. It may take a while to get some pictures of that since I am designing it on the fly.
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Offline grouch

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Re: Crusarius’ sawmill build - started with Linn Lumber basic kit
« Reply #29 on: September 20, 2017, 11:07:10 AM »
Do you braze? If so, you might want to braze a blob on the ends of those bolts that are used to take up slack for sliding pieces. They won't be doing a lot of sliding, but a sacrificial dab of phosphor bronze or brass on their ends would keep them from scoring or scratching the frame.
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Re: Crusarius’ sawmill build - started with Linn Lumber basic kit
« Reply #30 on: September 20, 2017, 11:52:59 AM »
That is a good idea. unfortunately I am not setup to braze. I actually thought about a thin piece of HDPE to take up the slop.

Could just get some nylon bolts.
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Offline mad murdock

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Re: Crusarius’ sawmill build - started with Linn Lumber basic kit
« Reply #31 on: September 20, 2017, 12:45:28 PM »
that is going to be one SWEET mill when you get it done!  Thanks for taking the time to share the journey with us!! Nice work too!
JD AMT 626, Turbosawmill M6 Warrior Ultra liteweight, Granberg Alaskan III, lots of saws-gas powered and human powered :D

Offline Crusarius

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Re: Crusarius’ sawmill build - started with Linn Lumber basic kit
« Reply #32 on: September 20, 2017, 12:49:06 PM »
Thanks Murdock. I am really looking forward to it. I do love a good challenge :)
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Offline William1961

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Re: Crusarius’ sawmill build - started with Linn Lumber basic kit
« Reply #33 on: September 20, 2017, 02:02:25 PM »
When you start sawing logs will you be on the left side of the mill pushing it down the track.

Offline Ox

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Re: Crusarius’ sawmill build - started with Linn Lumber basic kit
« Reply #34 on: September 21, 2017, 10:44:42 AM »
 smiley_thumbsup
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Re: Crusarius’ sawmill build - started with Linn Lumber basic kit
« Reply #35 on: September 21, 2017, 01:31:27 PM »
Very good job excellent workmanship helps to have the right tools for the job  smiley_thumbsup

Offline Crusarius

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Re: Crusarius’ sawmill build - started with Linn Lumber basic kit
« Reply #36 on: September 21, 2017, 01:55:03 PM »
When I first started fabricating I had a grinder, a sawzall, and a stick welder. My times have changed. Thanks everyone for your positive comments. This is definitely helping keep me motivated.
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Re: Crusarius’ sawmill build - started with Linn Lumber basic kit
« Reply #37 on: September 21, 2017, 05:21:35 PM »
Don't get a big head -- I bet you'll still have saw marks in the lumber from that thing.



BTW, you're not going to leave that hydraulic hose laying against the wheel, are you?

It's great to see the progression from a pile of parts to the heart of a bandmill. Thanks for the details!
Find something to do that interests you.

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Re: Crusarius’ sawmill build - started with Linn Lumber basic kit
« Reply #38 on: September 22, 2017, 08:00:00 AM »
Believe it or not the hose barely clears the wheel. That is not the final resting place for the tensioner. I would be afraid of a broken blade taking it out and those are not cheap. It will be mounted above the blade on the engine platform. Hopefully this weekend I get the roller base for the carriage put together and the engine mount.

Once the engine mount is done, in theory, I could cut something.
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Re: Crusarius’ sawmill build - started with Linn Lumber basic kit
« Reply #39 on: September 22, 2017, 08:59:51 AM »
How is the eccentric turned by the bolt in this picture?


I've looked back through the all the photos and can't see it. It looks like the bolt just passes through and therefore can't act on the disk, other than to clamp it in position. C'mon, out with your secret!
Find something to do that interests you.


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