4-stroke chainsaw mill - Pirate4x4.Com : 4x4 and Off-Road Forum
 
Pirate4x4.Com : 4x4 and Off-Road Forum  

Go Back   Pirate4x4.Com : 4x4 and Off-Road Forum > General Tech > Shop and Tools
Notices

Reply
 
Share Thread Tools Display Modes
Old 02-06-2013, 12:48 PM   #1 (permalink)
Skandinavisk pirat
 
ShuDuck's Avatar
 
Join Date: May 2004
Member # 30288
Location: Norway
Posts: 1,176
4-stroke chainsaw mill

Im planning on making my own mill as I have 3500 acre of forest. I`ll make a shop,shed etc. out of the materials

I want a chain saw blade as I will have a variety of sizes of threes, and a band saw seems like to much hassle to get right. Chainsaws with 7hp is reccomended by mill producers, but I dont need a new powerful chainsaw.

One alternative is electric, but it is a hazzle to run an extensioncord to where I need it to be, so that is pretty much out of the question

So I figure a cheap chinese 200cc 4stroke rated at 6.75hp should do the job. way cheaper than a chain saw. chain saw runs around 10krpm, the 4stroke peak at 3000rpm. If I set it up with a chainsaw clutch and a 1:4 belt drive, Id get 1/4 of the torque (Torque:8.5ft-lb(11.5N.m)/3000rpm) and the speed I need for the chain.
The chain would be about 16" with a "split chain" with 10 degrees teeth.
Im not sure what torque a 7hp chainsaw is rated at


Any opinions?

This is the basic design I`ll base min off

Name:  03-02-2013 02-26-40.jpg
Views: 11228
Size:  45.3 KB

Last edited by ShuDuck; 02-06-2013 at 12:49 PM.
ShuDuck is offline   Reply With Quote
Old 02-06-2013, 01:07 PM   #2 (permalink)
0[III]O
 
Redfin's Avatar
 
Join Date: Mar 2009
Member # 132064
Location: Pa
Posts: 764
Quote:
Originally Posted by ShuDuck View Post
Im planning on making my own mill as I have 3500 acre of forest.
__________________
BUY MY
Toy/Lexus 3.0 clutch...http://www.pirate4x4.com/forum/showt...222&highlight=
Bendix Tuflo compressor http://www.pirate4x4.com/forum/misc-...ompressor.html

I NEED
Cadillac 425 rear sump pan
Redfin is offline   Reply With Quote
Sponsored Links
Old 02-06-2013, 01:15 PM   #3 (permalink)
Granite Guru
 
Screwzer2's Avatar
 
Join Date: Nov 2004
Member # 38193
Location: Nevada City, CA under a bridge
Posts: 776
It'll work, but it'll be slower than a bandsaw mill. You'll be cutting a 1/4" instead of a 1/16" kerf.

I'd look for a Woodmizer Bandsaw mill if I could find it.
__________________
"The ink of the scholar is holier than the blood of the martyr".
The Prophet Muhammad
Screwzer2 is offline   Reply With Quote
Old 02-06-2013, 01:27 PM   #4 (permalink)
I make websites!
 
Join Date: Jun 2002
Member # 12429
Location: Rubicon Trail - CA
Posts: 10,318
Blog Entries: 9
Woodmizer LT15 Portable Sawmill Bandsaw 18HP | eBay


Looks
__________________
4x4 Product Reviews
Todd W is offline   Reply With Quote
Old 02-06-2013, 01:30 PM   #5 (permalink)
Skandinavisk pirat
 
ShuDuck's Avatar
 
Join Date: May 2004
Member # 30288
Location: Norway
Posts: 1,176
Quote:
Originally Posted by Redfin View Post
Think I got the conversion right. 1 "mål", Is 10 000 square foot. I have 1500 "mål"

I have not been thinking of it as much




Quote:
Originally Posted by Screwzer2 View Post
It'll work, but it'll be slower than a bandsaw mill. You'll be cutting a 1/4" instead of a 1/16" kerf.

I'd look for a Woodmizer Bandsaw mill if I could find it.
I was just looking at some home made band saw mills on youtube and it seems just as easy to build, maybe easier actually. I do like efficiency I`ll need to look more into the band type


cheapest bandsawmill to get around here is $10 000, I`ll build something for 1/10 of that
ShuDuck is offline   Reply With Quote
Old 02-06-2013, 01:33 PM   #6 (permalink)
Skandinavisk pirat
 
ShuDuck's Avatar
 
Join Date: May 2004
Member # 30288
Location: Norway
Posts: 1,176
Quote:
Originally Posted by Todd W View Post
That`s very nice, I can build that
ShuDuck is offline   Reply With Quote
Old 02-06-2013, 01:39 PM   #7 (permalink)
Registered User
 
Join Date: Aug 2008
Member # 117898
Posts: 164
Quote:
Originally Posted by ShuDuck View Post
Think I got the conversion right. 1 "mål", Is 10 000 square foot. I have 1500 "mål"

I have not been thinking of it as much
I think that's about 350 acres.

Last edited by brianZ71; 02-06-2013 at 01:40 PM.
brianZ71 is offline   Reply With Quote
Old 02-06-2013, 01:41 PM   #8 (permalink)
Registered User
 
Join Date: Dec 2006
Member # 84361
Location: Portland, OR
Posts: 649
Closer to 350 acres then. Still an awesome amount of land.
__________________
Zuk, 16v, 39.5s, Links, Air shocks, 104WB Gone. :(
Toy, 4.3 CPI, 4l60e, dana 300, Tons, Trail slut

Last edited by crazybluerider; 02-06-2013 at 01:42 PM.
crazybluerider is offline   Reply With Quote
Old 02-06-2013, 01:43 PM   #9 (permalink)
Skandinavisk pirat
 
ShuDuck's Avatar
 
Join Date: May 2004
Member # 30288
Location: Norway
Posts: 1,176
Quote:
Originally Posted by brianZ71 View Post
I think that's about 350 acres.
yeah, you are right
ShuDuck is offline   Reply With Quote
Old 02-06-2013, 03:23 PM   #10 (permalink)
Registered User
 
Join Date: Sep 2011
Member # 198851
Location: NE
Posts: 303
The chain saw idea will work...But I think you'll need 10 HP....
ADChevy4x4 is offline   Reply With Quote
Old 02-06-2013, 05:27 PM   #11 (permalink)
CJ
Rock God
 
Join Date: Feb 2000
Member # 71
Location: Woodside CA
Posts: 1,277
You could make an electric "breakdown" mill
This one is 15 hp motor with a 8ft bar on it, there is crap stacked where the log would go then the saw travels down the track. it also travels up and down go you can set the place it will cut
it is for cutting logs before going on the 36" Sandborn band mill.
Attached Images
 
__________________
Matt

81 CJ7

Last edited by CJ; 02-06-2013 at 05:30 PM.
CJ is offline   Reply With Quote
Old 02-07-2013, 01:04 AM   #12 (permalink)
Skandinavisk pirat
 
ShuDuck's Avatar
 
Join Date: May 2004
Member # 30288
Location: Norway
Posts: 1,176
Quote:
Originally Posted by ADChevy4x4 View Post
The chain saw idea will work...But I think you'll need 10 HP....
Guess I would want that for both types of saw. I need to find a used engine

Quote:
Originally Posted by CJ View Post
You could make an electric "breakdown" mill
This one is 15 hp motor with a 8ft bar on it, there is crap stacked where the log would go then the saw travels down the track. it also travels up and down go you can set the place it will cut
it is for cutting logs before going on the 36" Sandborn band mill.

Very nice, did you build it? how fast is it compared to a band saw? And that is a nice shed, excactly what I want to build
ShuDuck is offline   Reply With Quote
Old 02-07-2013, 04:57 AM   #13 (permalink)
Skandinavisk pirat
 
ShuDuck's Avatar
 
Join Date: May 2004
Member # 30288
Location: Norway
Posts: 1,176
Anyone know the reccomended blade speed for bandsaw? need to calculate the pulleys.

I have apperently changed my mind on the chain saw mill, and want a band saw mill instead. Should be easier to construct and faster in use

a 15hp is cheap enough new, hard to find anything like this used



Name:  Engine-TOOL-POWER-15hp-Petrol-Without-battery-_174083_l.jpg
Views: 6151
Size:  40.9 KB
ShuDuck is offline   Reply With Quote
Old 02-07-2013, 06:38 AM   #14 (permalink)
Registered User
 
85f150dsel's Avatar
 
Join Date: Feb 2005
Member # 43079
Location: The Mitten...bible thumping heartland
Posts: 1,087
There is a milling forum on arboristsite, glad to see you changed your mind, as aband saw is the way to go if you are doing much at all. You waste too much wood and time with a chain.
__________________
smileysarmory.com
85f150dsel is offline   Reply With Quote
Old 02-07-2013, 07:07 AM   #15 (permalink)
Skandinavisk pirat
 
ShuDuck's Avatar
 
Join Date: May 2004
Member # 30288
Location: Norway
Posts: 1,176
Thanks, I`ll check it out. that is what I realized looking at vidoes etc. got no experience with milling at all
ShuDuck is offline   Reply With Quote
Old 02-07-2013, 04:42 PM   #16 (permalink)
Rock God
 
billybob_81067's Avatar
 
Join Date: Aug 2005
Member # 52387
Location: Rocky Ford, Colorado
Posts: 1,628
Send a message via AIM to billybob_81067 Send a message via MSN to billybob_81067 Send a message via Yahoo to billybob_81067
Whatever you do end up doing post it up on here because I've been kicking around the idea of building a lumber mill for a while now. I think it'd be badass to cut my own planks and timbers out of the cottonwoods we have around here (I know cottonwood sucks but it's all we really have!)
billybob_81067 is offline   Reply With Quote
Old 02-08-2013, 03:36 AM   #17 (permalink)
Skandinavisk pirat
 
ShuDuck's Avatar
 
Join Date: May 2004
Member # 30288
Location: Norway
Posts: 1,176
I`ll post up a build thread for everything here

So far I have decided on the the design:

15hp

22"trailerwheels with hubs

I want to drive the blade directly on the tire

Angle irons as tracks

two post design

not decided on electric winch for height adjustment or manual

this is a design I really like



Name:  100_0069.jpg
Views: 13120
Size:  92.3 KB





Band saw blade speed: 3000-5000 feet/min

with a more understandable terms that is 914 -1524 m/min

If I drive the wheel directly and the motor runs at 3000rpm, I would need a 3.5:1 gear. I would get a blade speed of 1510 m/min. A 6" drive should do it

But then again I would need to read up on preferred blade speed related to blade life, cutting speed etc.
ShuDuck is offline   Reply With Quote
Old 02-08-2013, 04:01 AM   #18 (permalink)
Registered User
 
Join Date: Sep 2011
Member # 198851
Location: NE
Posts: 303
That's very interesting machine.
I have worked with portable band saws mounted on a 25' trailer . The engine was two cylinder gasoline, I would guess about 20 HP. This is a machine designed for constant use with an automatic log feed and hydraulic log lifting ramp.It's been some time but I believe the band saw was also powered by a hydraulic motor.
ADChevy4x4 is offline   Reply With Quote
Old 02-08-2013, 01:56 PM   #19 (permalink)
Registered User
 
Join Date: Aug 2006
Member # 78096
Location: Kingsport, TN
Posts: 1,411
Pocket Bike Mill
moulin a scie de poche (pocket sawmill)partie 1 - YouTube
Jeep07 is offline   Reply With Quote
Old 02-08-2013, 02:25 PM   #20 (permalink)
Skandinavisk pirat
 
ShuDuck's Avatar
 
Join Date: May 2004
Member # 30288
Location: Norway
Posts: 1,176
well.. that thing is fawesome !



Quote:
Originally Posted by ADChevy4x4 View Post
That's very interesting machine.
I have worked with portable band saws mounted on a 25' trailer . The engine was two cylinder gasoline, I would guess about 20 HP. This is a machine designed for constant use with an automatic log feed and hydraulic log lifting ramp.It's been some time but I believe the band saw was also powered by a hydraulic motor.
I did play with the hydraulic thought today as I have a bale packer (the white tractor eggs) with several hydraulic motors etc. that I could strip. But instead I posted it for sale, and have a lot of interests. I have tried before, but cheaper this time

Anywho, I should get this project moving pretty good soon with over double the budget that I need
ShuDuck is offline   Reply With Quote
Old 02-09-2013, 02:25 AM   #21 (permalink)
Registered User
 
m715's Avatar
 
Join Date: Nov 2000
Member # 2235
Location: Owego, NY
Posts: 282
I like your idea, I've got a friend with some land that wants his own small sawmill to build a workshop, very interested on watching the build...subscribed.

Quote:
Originally Posted by Jeep07 View Post
would never have thought of that
__________________
1977 CJ7 Chevy 327 and some other stuff...
1968 M715...Under Construction

Last edited by m715; 02-09-2013 at 02:25 AM.
m715 is offline   Reply With Quote
Old 07-15-2013, 03:12 AM   #22 (permalink)
Registered User
 
Join Date: Jul 2013
Member # 335610
Posts: 1
Hello ShuDuck,
Where did you find this Blue Bandsaw design? I like it too.
It looks quite a simple build
Regards Colin


Quote:
Originally Posted by ShuDuck View Post
I`ll post up a build thread for everything here

So far I have decided on the the design:

15hp

22"trailerwheels with hubs

I want to drive the blade directly on the tire

Angle irons as tracks

two post design

not decided on electric winch for height adjustment or manual

this is a design I really like



Attachment 743306





Band saw blade speed: 3000-5000 feet/min

with a more understandable terms that is 914 -1524 m/min

If I drive the wheel directly and the motor runs at 3000rpm, I would need a 3.5:1 gear. I would get a blade speed of 1510 m/min. A 6" drive should do it

But then again I would need to read up on preferred blade speed related to blade life, cutting speed etc.

Last edited by Whitworthsocket; 07-15-2013 at 03:31 AM.
Whitworthsocket is offline   Reply With Quote
Old 07-16-2013, 09:55 PM   #23 (permalink)
Granite Guru
 
UndefinedTaco's Avatar
 
Join Date: Nov 2011
Member # 203479
Location: Beautiful Tracy, CA
Posts: 827
Quote:
Originally Posted by Jeep07 View Post
That IS badass!
__________________
I like Toyota's
Murica!
"'Cause I never needed Government to hold my hand"
Buck Ofama
UndefinedTaco is offline   Reply With Quote
Old 11-09-2013, 08:47 AM   #24 (permalink)
Wheeler
 
Join Date: Jan 2012
Member # 210335
Posts: 203
Well, I have decided to build a chainsaw mill myself, I had one before. It turns out excellent smooth lumber with a ripping chain.

I decided not to go with a chainsaw head and to go with a 2 stroke. I am looking at 190cc and using a gocart clutch. True, the heads only get to 3100-3600 rpms, but, the chain does not spin at 8k-13k rpms on a chainsaw because of the gearing/small sprocket on the chainsaw clutch.

Usually a (small) 8 or 9 tooth on the chainsaw because it does not have the torque and the lawnmower engines do have the torque and you end up using a (big) 12-14 sprocket.

I am just not sure how I figure actually saw chain speed using the motor RPMs with the tooh count at each sprocket AND add in the size of each on the chainsaw and bar end. I know there has to be a Unix app somewhere ! :-D
4x4prepper is offline   Reply With Quote
Old 11-09-2013, 11:40 AM   #25 (permalink)
Rock God
 
billybob_81067's Avatar
 
Join Date: Aug 2005
Member # 52387
Location: Rocky Ford, Colorado
Posts: 1,628
Send a message via AIM to billybob_81067 Send a message via MSN to billybob_81067 Send a message via Yahoo to billybob_81067
Ah was looking for this thread earlier and lost it! Subscribing so that I don't lose it again! I have the bed for a bandsaw mill made. It's 4' wide and 20' long. Now I need to get to work on the actual saw part of it...
billybob_81067 is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -7. The time now is 04:58 AM.


Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 ©2011, Crawlability, Inc.