Welcome to TJ'S Woodshop

Come on in and take a little time to look around.

I hope you will enjoy seeing some of the things I have made. 

 

 Building A Homebuilt Portable Chainsaw Sawmill

This page shows the step by step photos of a portable chainsaw sawmill that my friend Chuck and I built and my reasons for the changes we made.

Before I get started telling you about building the mill I want to say thanks to some local businesses here in Fort Smith that helped me and recommend their places of business as a good place to shop.  

Don at Action Machine

611 Phoenix Ave
Fort Smith, AR

Shamrock Bolt and Screw Company

3731 Wheeler Ave
Fort Smith, AR

(479) 648-9401

Davis Structural Steel

610 South Y St.
Fort Smith, AR

(479)783-0888


After dealing with the local STIHL dealer here in Fort Smith

 which is

The Mower Shop

3700 Towson Avenue

Fort Smith, AR

479-646-5102

and speaking to others that have, I WOULD NOT recommend them to anyone


On a side note

There is a big debate among people that own sawmills about which is better, a chainsaw, bandsaw, swinger or a circular mill. 

All have their advantages and disadvantages, but I guess it comes down to this for me. 

I'm the one who will be using it and I built it to suit my needs.

 Now if you just can't stand the thought of someone using a chainsaw mill and you want to give me a portable bandsaw, swinger or circular mill

Great!

I would love to have it and use it.

Other than that you not going to change my mind about the bandsaw or circular being any better.  


This is from my personal experience.

I have milled and helped others mill using some of the big name commercial band sawmills and circular mills, some of those mills cost tens of thousands of dollars and I have also milled on some home built chainsaw mills that cost a few hundred.

  I will put the quality of the lumber cut on a good homebuilt chainsaw mill up against any bandsaw or circular mill, commercial or homebuilt.  A bandsaw or circular mill might saw through a log about a zillion times faster than a chainsaw mill, but the most expensive one of those mills can't saw straight accurate lumber any better than this one. 


Here's the information about the mill

It's powered by a modified
 066 Stihl chainsaw with a 32 inch bar. 

It took me over 18 months of looking at other peoples mills, planning, daydreaming and gathering the parts and then 3 months for me and my friend to build it because I kept making changes and adding what I thought of as improvements.

Now that it's finished I have to say it was worth all the time and trouble to get the mill built the way I wanted, I can't describe what a great feeling it was to cut the first log on it.

Don't let the 3 month build time discourage you if you are thinking of building a mill.  I only worked on it a half day here and a couple of hours there every week or two.  Truth be told, I bet we have less than 40 hours in the build time. 


 

Chuck getting the chopsaw lined up

Chuck making the first cutMaking the first cut on the inch and a half tubing that will be used for the frame'Getting all the tubing cut to lengthOne side of the frame weldedAdding the top piecesTacking it all togetherFrame is almost finished, we thoughtDecided to add corner bracesAdding the 2X4 tubing that the wheels bolt toReady to weld themThinking once again that the frame is almost finishedStarting to bolt the hardware onNot really liking how it's turning out and starting to think of the first changesClose up of the sliding bar clampBolted the chainsaw on for the first time and decided the frame is not wide enough for what I want to doFrame is now 38 inchs wide, moved the hardware that lifts the saw to the inside and added the sprockets and chains Decided to mount the height control on the end away from the saw head, I will also mount a remote throttle control on this side. This is the side I will be loading the logs on and turning them when I'm millingAdded a flat piece of metal with a groove cut in it to the center of the frame so I can tighten the chain to prevent it from saggingThought about using a small sprocket but used a piece of polypropylene that a friend that owns a machine shop gave me.I will attach a handle to the 50 tooth sprocket to turn the 20 tooth which will turn the 36 tooth below it. It should end up being 4 turns to move the saw 1 inchAlmost finished, I thinkBuilt a handle and installed it, the height control is finished Guess it wasn't finished after all. I didnt like how much of the all thread was sticking up above the nuts so I trimmed it off and lowered the handle a inch. Now it's finishedHad a problem with the vibration from the saw making the height control start unwinding and the saw start dropping lower. Chuck sliced the top off of a 1 inch piece of thin tubing and drilled a hole through it so I could weld it on the bar that I adjust the chains tension withSlide the keeper pin through the chain and it locks everything in place so the saw can't move   Started building the log bed. It is 14 feet long so I will be able to cut a 10 foot logTacked together.Put the bed up on the trailer to find where the balance point is. I still have to add more cross pieces. The trailer is a small boat trailer that I removed the runners that the boat sat onFinished welding in all the cross pieces and tacked the frame to the trailer, it's getting close to being finishedAbout to weld on the angle iron that the carriage will ride on The angle iron track is in place, ready to weld. I decided to place it inverted, like a upside down V because I think it will be less likely to get bent that wayPut the carriage up on the tracks and pushed it back and forth to make sure the tracks were the right distance apart  All welded up and ready for a light coat of paint to keep it from rustingPut the first coat of paint on and bolted the saw on the carriage just to see how it looks. Still have to build the log bunks, fences and dogs  
Took it out on a little 30 mile roadtrip to see how it towed and handled behind my small truck.  It tracked great around sharp corners and it's long enough to see when backing.  It also ended up light enough that I couldn't tell I was towing anything.  I'm very happy with it! RoadtripDecided since I was not building this mill for any kind of big production I could do away with the remote throttle and keep it a little more simple 
Tore it back apart again to move the saw to the same side as the height control
Building the sliding log dogs was easier than I thought.  I have been thinking of dozens of different ways to build them and while I was in a hardware store looking at pipe it hit me.  I used 1/2 black gas pipe and put a 3/4 inch T fitting over it. Then I screwed a 3/4 to 1/2 inch adapter in it and screwed another 18 inch piece of gas pipe in that  The dog slides back and forth as smooth as glassTwo 6 inch pieces of 1/2 inch all thread welded into a T with the point sharpened and run through a long nutCut a V shaped notch in the end of the pipe and welded the long nut in placeWelded the jack holders to 4X4 thin plate and welded them to the sides of the frameI mounted 4 jacks on each side which might be overkill, but I would rather have too many than not enough  
This is Chuck welding the log bunks on. The tubing that the 2 inch heavy wall fences slide up and down through are welded to the back of the bunks. You can see it by Chucks left hand
Welding the front and back side of the bunks. You can see the heavy wall tubing I'm using for the fences hanging down. The bunks are 1/2 thick
I made the first cut with the mill beside Chucks welding shop as soon as we were done welding the log bunks. The cedar log I'm cutting was given to me by a man that had to cut out of his yard after a storm knocked it down.  I have had that log laying beside my shop for 2 years and I loaded it up and hauled it over to Chucks with me so we could try the mill out. I was grinning so big it made my face hurt! The cut turned out very smooth.  You can see how the log dogs work in this photo
You can see the fences on the left side of the log. The slower you push the saw through the log the smoother the cut will be.  The saw lines you see are not more than a 32nd of a inch high and I was pushing as fast as I could to see how quick I could make the cut
Here's a good pic showing the dogs
This one shows the heavy wall 2X2 that I used for the fences
I was surprised how well it cut considering I had not fine tuned the carriage yet
Fences up, jacks down
Water Lube/Cooling SystemHere's a update since I finished the mill, I had been reading about water systems the band sawmills have on them and thinking about the one that was on a band mill I used a few years ago and thought I would try it on my mill.While I was milling some cherry Chuck used a pump up sprayer to spray water on the tip of the sawbarI was surprised in how much of a difference it made in the speed I could saw through the log.   When I don't use the water, the dust is a lot worse and it bakes on the bar until it has a pretty thick build up making it harder to push through the log. The water worked so well I decided I needed a water system, I built a 5 gallon system today for about $20.00  It's a 5 gallon bucket with a 1/2 inch plastic boiler valve.  I drilled a hole through the side of the bucket, put the boiler through with a 1/2 faucet lock washer on the inside to hold it. Then drilled a 3/8 hole in a plastic cap and glued in a brass fitting with a 3/8 piece of rubber hose on it.This is the end of the sawmill build, I hope you have enjoyed seeing and reading about it coming together. If you are building a mill maybe there is a little information here that you can use. The saw carriage is a Procut design, but everything else is something me and my friend dreamed up and put together.  

 

What's New

February 2010

The chainsaw mill you see me and Chuck building here has a new owner and will be going to Council Bluffs Iowa. 

We are starting on a new mill now.

The new one will have a chainsaw bar and chain but will be powered by a  14 hp  engine from a John Deere mower.  

I have started gathering the parts and will start building soon, check back often for the new photos.

tj@tjswoodshop.com

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