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Author Topic: 1950's Circle Mill Trouble Shooting  (Read 5981 times)

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Online hacknchop

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Re: 1950's Circle Mill Trouble Shooting
« Reply #60 on: February 09, 2019, 11:59:54 PM »
I had trouble with a saw once until an older fella came along and told me to remove every second tooth and I did and it made the difference I think your just underpowered every tooth draws .Check with some of the other guys like Jeff  they will know what I'm talking about.
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Offline moodnacreek

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Re: 1950's Circle Mill Trouble Shooting
« Reply #61 on: February 10, 2019, 04:11:55 PM »
I had trouble with a saw once until an older fella came along and told me to remove every second tooth and I did and it made the difference I think your just underpowered every tooth draws .Check with some of the other guys like Jeff  they will know what I'm talking about.
Worth a try, slow feed in knots or cross grain. Of course you can't just take out teeth or the saw will curl. Have to blunt or have every other tooth short. I have seen old solid tooth saws with every other tooth sawed off, must have been sawing with a fordson.

Offline Ron Wenrich

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Re: 1950's Circle Mill Trouble Shooting
« Reply #62 on: February 10, 2019, 06:53:15 PM »
The problem with using a skip tooth method is that you have half the gullet space for dust.  That means you have to slow your feed down or you'll hang the saw.  Hanging the saw puts a lot of stress around the eye of the saw, and you'll need to get it hammered.  Probably okay for a hobby operation.  But, its just putting a band aid on the problem.
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Offline Jeff

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Re: 1950's Circle Mill Trouble Shooting
« Reply #63 on: February 10, 2019, 08:23:58 PM »
Ditto.
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Offline Jeff

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Re: 1950's Circle Mill Trouble Shooting
« Reply #64 on: February 10, 2019, 08:27:40 PM »
Hanging a saw is an experience. I can almost guarantee if it happens to you, the first words out of your mouth will be "what the he....!"
Just call me the midget doctor.
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Online hacknchop

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Re: 1950's Circle Mill Trouble Shooting
« Reply #65 on: February 10, 2019, 09:44:09 PM »
The experience that I had was we had worked on this mill for about a week every day , checked first to make sure everything was level ,made sure the lead was right bought a brand new jockey grinder and stellite teeth ,messed with the governor didínt help because the saw was underpowered when I would start into a cut I would have to really watch my feed speed because the motor couldnít keep up. Not after remove every second tooth I would cut on average a tandem load a day, the only other thing that made a difference was in big spruce we would try to saw from the butt end which was new to me as before that I never paid attention. Iím just a sawyer not a millright but a fella does learn a few things along the way.
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Re: 1950's Circle Mill Trouble Shooting
« Reply #66 on: February 10, 2019, 10:02:53 PM »
The only other thing I want to add is I was a somewhat experienced sawmill operator hired to resurrect this moth balled butchered mill and when I couldnít get it to work I reached out to older more experienced ones and they saved my job and reputation,I didnít know about the forestry forum or it may not have been around then 1998 but it was the same type of experience so reach out to your    closest saw filer and ask thatís what I did .
                                                    All the best Terry Ferris 
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Offline Ianab

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Re: 1950's Circle Mill Trouble Shooting
« Reply #67 on: February 11, 2019, 04:25:33 AM »
Reducing the number of teeth should allow you to cut better, at a reduced speed. 

The problem is that each time a tooth bites in it has to cut though all the wood fibres in it's path. Now whether it bites in 1/32" or 1/16", the load on the saw is similar.  So slowing down the feed doesn't help as much as you might think. 

Now if the saw has less teeth, you can keep up the 1/16" feed rate per cut, which will only be 1/2 the speed of a full comp saw with heaps of power.

Same way a swing blade mill with only 4 - 6 teeth can cut OK, and throw decent chips (not dust). Because each cutter on the blade needs 2-3 HP to keep it working properly,. So 6 cutters on my mill with 13 hp works. 50 teeth on a circle blade, then you want 100+ HP pushing it. Drop it back to only 25  teeth, and 50 hp should drive it, but at 1/2 the feed speed. Each tooth is taking a proper bite, throwing out chips etc.  But you have to watch that feed speed, and not stall the saw.
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Offline sharp edge

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Re: 1950's Circle Mill Trouble Shooting
« Reply #68 on: February 11, 2019, 06:33:36 AM »
Start with cutting 8"-10" white pine logs, then work your way up. The knots are even soft in white pine. 
That board you cut would be hard to do on a good mill.

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Offline dgdrls

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Re: 1950's Circle Mill Trouble Shooting
« Reply #69 on: February 12, 2019, 07:24:49 PM »
Jemmy

did you figure out what pattern you're saw is?
How many teeth?

D

Offline jemmy

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Re: 1950's Circle Mill Trouble Shooting
« Reply #70 on: February 12, 2019, 09:11:45 PM »
I can get some photos from things Ive cut along with over all photos, I believe the motor has at least 100hp, and I was told that it had plenty of power but I could be wrong, Im fine with switching out motors. But I dont think thats the issue as of right now. Im gonna start with the teeth, blade alignment etc, leveling, etc then try and cut next. I got a decent list going now. And I am in school full time till may but i want to be producing something in 2 weeks or less, and by 3 months have things decently fluid.
Plan for the worst, hope for the best, and take what comes with a grin. - Grandpa Chuck

Offline Jeff

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Re: 1950's Circle Mill Trouble Shooting
« Reply #71 on: February 12, 2019, 09:47:59 PM »
Circle sawmilling is a science, it is an art, and it is witchcraft.  You need to get the science part straight first.  You will get no where unless you procedurally go through the setup and alignment of the mill, the power and transfer of power to the mill, and the blade and teeth. All of these have to be correct to run a circle sawmill.   Go at it halfassed and try and skip the important stuff and you are destined to fail.  Once we get past the science stage, we can then help you with the art and then the witchcraft stages.  :D
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Offline jemmy

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Re: 1950's Circle Mill Trouble Shooting
« Reply #72 on: April 14, 2019, 11:27:55 PM »
Update:

I have a lot of irons in the fire and this thing has been on the back burner of the rotation, I've compiled easily about 24hrs of work to do before I do any test cuts. Currently I am in school full time, 500 egg laying chickens to tend to, a full time job, and many other projects inherent to a farm, sawmill, business, or being a student. (designing and building 3 buildings and one property development to name a few of the projects I am dealing with) I have exams and homework for the next month and my egg layers will start giving me eggs. I've got welding, cable issues, and overall assembly/building to do. I have been researching, and talking with people when I can. I am going to knock out the projects and eliminate many issues before running. But it is going to take time and things aren't very straight forward. Like I have to run 400 feet of extension chords for a welder and level everything out. Well I have not given up on this project, it is just apart of many other projects. I think I am going to do a cheap band saw mod, but before I do that I am going to mess with this thing. A lot to be done, but I am busy, and hopefully it all works out in a timely fashion. 
Plan for the worst, hope for the best, and take what comes with a grin. - Grandpa Chuck

Offline jimparamedic

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Re: 1950's Circle Mill Trouble Shooting
« Reply #73 on: May 25, 2019, 10:42:29 AM »



Online Woodpecker52

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Re: 1950's Circle Mill Trouble Shooting
« Reply #74 on: May 25, 2019, 11:47:03 AM »
You have learned well what the joys of owning a older circle mill is like.  More like restoring an antique tractor painting it and looking at it.
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Offline jimparamedic

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Re: 1950's Circle Mill Trouble Shooting
« Reply #75 on: May 25, 2019, 12:06:23 PM »
Just hang in there it will get there. Where are you located?

Offline bandmiller2

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Re: 1950's Circle Mill Trouble Shooting
« Reply #76 on: May 30, 2019, 08:45:43 PM »
What Jeff said about circular sawmilling hit the nail on the head, that should be carved in stone. Handset circular mills are the great equalizer a hill Billy has as much of a chance as a PhD engineer to have a good running mill. Small adjustments mean a lot, any shortcuts taken will be back to bite you. There is such a thing as over engineering you need to feel what the saw is doing and treat it like a trophy wife. Frank C. 
A man armed with common sense is packing a big piece

Offline jimparamedic

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Re: 1950's Circle Mill Trouble Shooting
« Reply #77 on: June 03, 2019, 09:34:57 AM »
Yes I agree fully a mill is like a women. Remember their mood can change very quickly.

Offline jemmy

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Re: 1950's Circle Mill Trouble Shooting
« Reply #78 on: June 05, 2019, 11:47:56 PM »
Update:

Thank you all for the support and words of wisdom. This project has been humbling. Thankfully I have had some recent success with my slabbing build. Its been in the shop for a year and I just completed my first cut. I finished in the dark, but I finished it. There is about 3 more solid days of fabrication and then that unit should be ready for action. Just need to build, configure, figure, a rail system. But I am happy with this projects latest developments and had to share. I will be starting a separate thread for it soon.

Chickens are starting to lay, I am working 60-80hrs a week as an irrigation foreman, the weather has been tough and the chickens have been a handful, but I swear I will complete this mill project. This weekend I believe I will be attacking the many nick-nacky issues that have been bothering me about the mill and hopefully by the end of the weekend I will be much closer to firing up the motor. I cant begin to put a time table to things for this mill but I am persistent and baring some cataclysmic event this saw will run. 

 

 

 

 

 

 

 
Plan for the worst, hope for the best, and take what comes with a grin. - Grandpa Chuck

Offline 03westernstar

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Re: 1950's Circle Mill Trouble Shooting
« Reply #79 on: June 28, 2019, 10:58:18 PM »

Jemmy. Where are you located? I travel alot and may be able to come by and give you a hand with your circle saw of problems, I have been through it the last four years sawing with my frick, everything down to pouring the Babbitt mandrel bearings, and shimming the saw with paper, if your close to somewhere I may be I would be glad to swing by and lend a hand.


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