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Author Topic: Crusarius’ sawmill build - started with Linn Lumber basic kit  (Read 19755 times)

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Offline JRWoodchuck

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Re: Crusarius’ sawmill build - started with Linn Lumber basic kit
« Reply #220 on: January 09, 2018, 07:27:55 PM »
Surplus center is great for sprockets. That is where I got all of mine.
Home built bandsaw mill still trying find the owners manual!

Offline Crusarius

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Re: Crusarius’ sawmill build - started with Linn Lumber basic kit
« Reply #221 on: January 22, 2018, 12:38:03 PM »
So I needed to get the mill out of my shop so I could get my broken snowmobile in. I didn't take any pictures but I put the tongue trailer jack on the front of the mill. I was able to roll it out of the garage and into the driveway far enough out of the way to work around it getting the sled in the garage. My 2 year old was helping push the trailer. I cannot believe how easy it moved. I am very happy.

Why is it when you are working on one big project all sorts of other smaller projects keep jumping in front of the big one? Looks like I need to replace the entire bulkhead on my sled :(
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Offline Kwill

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Re: Crusarius’ sawmill build - started with Linn Lumber basic kit
« Reply #222 on: January 22, 2018, 10:46:47 PM »
I watched a u tube video where a guy had thee same sliding spring type log dogs you made. Looks like they worked out good on his mi!!.
Built my own hydraulic splitter
Built my own outdoor wood stove
Built my own log arch
In the process of building my sawmill

Offline Crusarius

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Re: Crusarius’ sawmill build - started with Linn Lumber basic kit
« Reply #223 on: March 12, 2018, 11:38:51 AM »
So I left off contemplating the meaning of backstops. I have an idea I have not tried yet. But while I was at a loss there I chose to continue on the raise and lower setup.

I started with a 12 volt wheelchair motor I got from ebay. The wheelchair motor had a quick disconnect for disengaging the drive and also a brake. Since I am using Acme threaded rod for raise and lower I felt the brake was unnecessary, so I removed it. The motor spun easier after removing the brake.

Here is a picture of my ghetto mockup to make sure the motor had enough power to do what I wanted it to do.
 

 

 
I still have the stock pulley on there and you can see the release lever.  The rest of the stack of parts was what I could find to make it work for mockup. It’s not pretty but it worked.
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Offline Crusarius

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Re: Crusarius’ sawmill build - started with Linn Lumber basic kit
« Reply #224 on: March 12, 2018, 11:40:54 AM »
After testing to make sure it would work I moved on to permanent mounting. The gearbox had those 4 bolts very convenient for mounting a plate. The slotted holes are for tensioning the chain.
 

 
 
The motor came with a v-belt pulley on it. Since I am using #40 chain I needed to adapt to chain instead of the pulley. The challenge here was keeping the quick disconnect feature in case I needed to raise and lower manually because of battery issues or whatever. The pulley had a coupler on it similar to a lovejoy. The sprocket that was to replace the pulley needed some work.
 

 
I tried many different ideas on trying to adapt to the sprocket. In the end I finally just put the sprocket into the mill and machined the mating coupler into the thick shoulder of the sprocket.

 
The funny threaded rod was leftover from my mockup. I think I replaced it with the correct nut. I will have to check next time I am in the shop.
 
During mockup testing the carriage moved about .416” per second. I have not checked how fast it moves since it was reassembled.
 
I think I need to add a chain tensioner or a guide to keep the chain from rattling around. It is spanning a very long distance. For now this works.
 

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Offline Crusarius

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Re: Crusarius’ sawmill build - started with Linn Lumber basic kit
« Reply #225 on: March 12, 2018, 11:42:34 AM »
Next item on the list was cant clamps. While the backstops are still under construction I knew what I wanted for cant clamps and moved on to those.

This picture shows the fixed guide side clamp. The clamp was originally square. Since I made everything so tight I realized that the flange on the guide roller would not clear the square end. I ended up machining a 30 degree angle on the back side. That is a piece of 5/4 composite decking.

  
The spring loaded side I left square. Hopefully this is not going to be a problem. I machined the clamp to match the height of the other side. Right now the way everything is setup it looks like my last cut will be 7/8 to 1” thick.
 

 

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Offline Crusarius

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Re: Crusarius’ sawmill build - started with Linn Lumber basic kit
« Reply #226 on: March 12, 2018, 11:44:39 AM »
After test running the mill without guards I decided I would never run it again without them. So here is the start of making the guards.
 

 
I had a couple sheets of 16 gauge stainless laying around that I have been moving for years. I finally decided to put them to good use.  I did not want to have to remove the guards to replace the blade so I setup a hinge from the engine mount. Still undecided if I like it or not. Time will tell.
 
Here is the start to the drive side. Long time ago a built a plate roller with the plans of building a ditching bucket for my friends excavator. The plate roller worked great to add the perfect curve to the stainless plates. It also smoothed out the dents from all the abuse they had seen.
 

 
Idle side
 

 
The cover is hinged from the engine mount and has a single bolt into the sawframe. Time will tell if I like this or not. It is a pain changing the blade since I can’t quite open the cover far enough to stay open. I may end up adding a link arm to hold it while changing blades. This picture was taken as I was getting ready to setup for my first cuts. The weather was not cooperating with me so I decided to try the test cuts in the shop. The drive side was temporary just to cut down on the dust flying everywhere. 


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Offline Crusarius

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Re: Crusarius’ sawmill build - started with Linn Lumber basic kit
« Reply #227 on: March 12, 2018, 11:46:46 AM »
The mill is not complete but I was able to make my first few cuts. Now I have a better understanding of what I need and want.
I found this perfect little test log in the firewood rack. I learned real quick why everyone hates short logs. I tried many things with my clamps to hold it but in the end I ended up having to screw it to a 2x6 and clamp it to the bed.
I do not have a youtube channel setup yet so the videos may take some time to upload but you can at least take a look at the pics.
 

 

 

 
 

 


Still need a little tweaking on the alignment of the blade but for my first cuts I am extremely happy.
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Offline Crusarius

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Re: Crusarius’ sawmill build - started with Linn Lumber basic kit
« Reply #228 on: March 12, 2018, 11:53:51 AM »
In this picture you can see my 2x6 I finally used to keep the test subject under control. The last 2 cuts I made produced 1/4” thick slabs and a pig pile of sawdust I need to clean up. 



I am good with the cleanup, it feels real good to have made the first cuts.
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Offline Kbeitz

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Re: Crusarius’ sawmill build - started with Linn Lumber basic kit
« Reply #229 on: March 12, 2018, 01:28:22 PM »
I used a short chain to hold my band cover open...
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Offline Crusarius

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Re: Crusarius’ sawmill build - started with Linn Lumber basic kit
« Reply #230 on: March 12, 2018, 01:56:24 PM »
Thats not a bad idea. as long as I can find a way it won't rattle and annoy me.
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Offline Crusarius

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Re: Crusarius’ sawmill build - started with Linn Lumber basic kit
« Reply #231 on: March 12, 2018, 02:49:56 PM »
during my testing I noticed that my clutch engage just off idle. I don't like this because when I have the engine at high idle the clutch i partially engaged. does anyone know how to adjust it? It is a Noram double V-groove pulley. I am hoping its as simple as a small adjustment and not have to change out springs and weights.
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Offline ljohnsaw

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Re: Crusarius’ sawmill build - started with Linn Lumber basic kit
« Reply #232 on: March 12, 2018, 03:11:34 PM »
Attach a spring to the left of the hinge point on your engine mount and the other end down on the cover.  When closed, the spring holds it closed.  When you open it, the spring travels over center of the hinge point and will hold it open.  Hope that makes sense.
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SkyTrak 9038, Davis Little Monster backhoe, Case 16+4 Trencher, Home Built 42" capacity/32" cut Bandmill up to 54' long - using it all to build a timber frame cabin.

Offline Crusarius

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Re: Crusarius’ sawmill build - started with Linn Lumber basic kit
« Reply #233 on: March 12, 2018, 03:15:15 PM »
That makes perfect sense. I do have a few springs I could try.
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Offline waynorthmountie

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Re: Crusarius’ sawmill build - started with Linn Lumber basic kit
« Reply #234 on: March 12, 2018, 04:20:33 PM »
Great build especially the awesome trailer system

Just have one question. 

Why do you have the pulleys inside the frame and not outside to give you maximum width. Is this due to the blades provided with the kit or is this due to design. I was looking at using one of these kits for my build in the future but would like to have it so anything that fits between the engine frame i can cut. 




Offline Crusarius

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Re: Crusarius’ sawmill build - started with Linn Lumber basic kit
« Reply #235 on: March 12, 2018, 04:46:06 PM »
you mean the carriage wheels? They are wider than my guide roller locations. I mounted the 3/8" plate on the outside of the main rail. the wheels are slightly off center so my carriage wheel is about 1/2" offset to the outside of the frame. I wanted the wheels to be in double shear which is why I made the carriage the way I did. I was also worried about the carriage being to wide and interfering with the stabilizer jacks.



Ok. I reread your post and now I am thinking you meant bandwheels. The reason they ended up where they are is the length of the band. I wanted a standard length and that is what the kit I purchased was setup for. 

I screwed up making the trailer and accidentally ended up 2" wider than I was planning. So far I am happy I made that mistake.

I am still toying with the idea of making the mill dual width capable. Currently I have 31" between the guides. if I go to a 176" blade I will have roughly 41". I am pretty sure the 176 blade is a decent amount more cost than the 158. I don't really need the wider cut right now but If I choose in the future it is very easy to extend the sawframe and use the longer band.
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Offline waynorthmountie

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Re: Crusarius’ sawmill build - started with Linn Lumber basic kit
« Reply #236 on: March 12, 2018, 04:50:08 PM »
That is exactly what I meant by the distance between the bandmill wheels.

The idea of a dual width mill is something I had not thought of before.

Would be the best of both worlds. Cheap blades for most of your cutting and when you need to stuff a big one through you just move the Free wheel farther out.

Also the extra room on the bunks would make handling medium size logs easier and allow for more hydraulics down the road. 

Offline Kbeitz

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Re: Crusarius’ sawmill build - started with Linn Lumber basic kit
« Reply #237 on: March 12, 2018, 05:05:07 PM »
I made my mill so it would take anything between a 145" to a 170" band.
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Offline starmac

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Re: Crusarius’ sawmill build - started with Linn Lumber basic kit
« Reply #238 on: March 12, 2018, 05:10:43 PM »
One member reconfigured his woodmizer to be able to change band lengths, I have not seen anything on it since he dit it, Kind of makes me wonder how well it worked for him.

I would think it would be fairly easy to do on a 2 or 4 post mill, especially if designed to in the original build.
Old LT40HD, old log truck, old MM forklift, and several huskies.

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Re: Crusarius’ sawmill build - started with Linn Lumber basic kit
« Reply #239 on: March 12, 2018, 11:14:46 PM »
As I recall, it turned out well. Check it out in this video. My internet connection is to slow to watch YouTube but I think this is the video in which he saws some wide walnut. 

1992 LT40HD

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