Dimensional Sawmill - Revision history

Ryan Lutz: Redirected page to Sawmill/Research Development

2011-08-26T03:16:55Z

Redirected page to Sawmill/Research Development

← Older revision		Revision as of 03:16, 26 August 2011
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	~~=Industry Standards=~~		#redirect [[Sawmill/Research Development]]
	*[http://www.mobilemfg.com/ Mobile Dimension Sawmill] is the world's only dimensional sawmill. See the world wide web.

	~~=Design Notes and Rationale=~~

	~~'''Z Height Leveling'''~~
	*Turnbuckle attached to upper z adjustment peg

	~~'''Evenness of Z Height Raising Along 4 Posts'''~~
	*Build 4 inch winch drum - each revolution winds 1' of wire

	~~'''Log Taper Adjustment'''~~
	*Disconnect mechanism for connecting rod between front and rear z-risers to create a height differential between the two ends of the log

	~~'''Edger'''~~
	*Adjustable from 1-3 blades in standard version, up to 6 for 6 2x2 lumbers in one pass
	*In 3-blade configuration, top edger blade is controlled by a crank that can be adjusted while sawmill is running

	~~'''Gantry'''~~
	*Box truss design

	~~'''Carriage''''~~
	*Clearance of 1/8" around gantry

	~~'''Hydraulic Hoses'''~~
	*4 Hoses
	*Mast at either end

	~~'''Trailer Hitch'''~~
	*Telescoping piece of tubing in frame
	*Hitch retracts for sawmill operation

	~~'''General'''~~
	*Counterweight for hydraulic motor on one side of gantry - balancing
	*Saw and collar - typically from same manufacturer

	~~'''Vertical Motion'''~~
	*One crank with a worm gear controls one side, connected to second side via connecting rod
	*Vertical adjustment - 4 worm gear sets - [http://www.bostongear.com/products/open/index.html#]
	*Bronze bushings - for vertical adjustments

	~~'''Horizontal Motion - Crosswise'''~~
	*Crank with indicator
	*Sprocket with chain to another sprocket with pinion, riding on rack
	*Rack faces down
	*Sprocket and pinion sheltered from dust
	*Connecting rod connects to other end
	*Link rod contains a telescoping slip joint with pin, to retain of modularity of track lengths

	~~'''Horizontal Motion - Lengthwise'''~~
	*Festooned hydraulic hose
	*Hydraulic motor rides under the gantry
	*Engine moves carriage via a spool over which a wire is wrapped

	~~'''Horizontal Dimension'''~~
	*Set by guides that are rolled out with a single crank

	~~'''Automatic Feed'''~~
	*Separate hydraulic motor - with a riding bidirectional valve that trips its lever to other dimesion upon reaching end of track
	*Wire drives carriage
	*Have a safety trip in case of running into metal objects in wood
	~~'''Dust Ejector'''~~
	*On top of blade guard
	~~'''Set Works'''~~
	*Set relationship of saw to the log to make the next cut
	*Dimensional sawmill needs setting in 2 dimensions
	~~'''Log Holding'''~~
	*2-stage dogs - one for staring the log (high center of gravity), and second for low center of gravity
	*May want to flip log if it's difficult to hold towards the end

	~~=Outstanding Design Issues=~~
	*Hydraulic hose cabling guide
	*Multiple edger blades in future
	*Crank edger adjuster

	~~=Action Points=~~
	*Saw collar

	~~=Subject Matter Expert Review=~~

	~~The Mobile Dimension saw (MDS) is a serious unit, and well designed. One of the guys on the board of the woods coop has one, though~~
	I don't think he is using it or even really broke it in yet. The alignment issue for these saws has been addressed in two ways by them, and more options are up to you. With the Lucas mill, all options are available, just think them up and incorporate them on site, less good. I like the MDS lots, it is all they say it is, I think it works best with large logs.

	I think a band mill like a wood mizer, or a shop made unit like the "Procut mobile sawmill" (have plans), or the Mobile Dimension will all work well and it all comes down to the sowyer and the logs. Who runs it? What do your logs look like, What species are they? This sort of thing has to be a bit of a passion to do it right or even acceptably well. This is only a step in the process remember and it is a stairway. Your lifetrack will be well tested in this task.

	I would say that if you want to build a mill the plans for the Procut will accomidate chainsaw or band head, a circular saw, multiple saws, or anything else you want to fit in, the plans are $50 from allen at Procut. procut@telus.net These are simple plans, well laid out, and I think they would fit your current style of "open bootstrap", this is an open mill. The basic design costs a tiny bit, then you do anything you want with it.

	~~Benjamen Hansen, Sawyer, Wisconsin, USA~~

	~~=Comments=~~
	~~#Use a platform with endstands - need vertical and horizontal alignment~~
	#~~Track is extendable in modular sections~~

	~~=Conceptual Design=~~
	[[~~Image:sawmill.jpg\|300px]]~~

	~~=CAD=~~
	*http://openpario.mime.oregonstate.edu/projects/~~osusawmill/documents~~

	~~=Materials Sourcing=~~
	*[10] 3/4" bearings for rollers on top of gantry- [http://www.vxb.com/page/bearings/PROD/3-4inch/Kit7065]
	*Cam followers - 4x the cost - [http://www.mcmaster.com/#cam-followers/=dbhz2g]
	*[4] V-groove bearing for x (transverse) direction motion on inverted angle- [http://www.vxb.com/page/bearings/PROD/Kit8406]
	*[4] 2-bolt, 1/2" flange bearing for y (lengthwise) motion - for pinion gear shaft
	*Rack - 8' - [http://opensourceecology.org/wiki/Great_price_on_the_rack]
	*[2] Main shaft pillow block bearings, 1-7/8" - [https://www.surpluscenter.com/item.asp?item=1-210-30-P&catname=powerTrans]
	*[2] Secondary blade pillow block bearings - [https://www.surpluscenter.com/item.asp?item=1-208-24-P&catname=powerTrans]

	~~=Fabrication=~~
	~~'''Blade'''~~
	*Anneal blade to machine
	*Harden blade by heating and quenching
	*Surface grind to flatness

	~~'''Dogs'''~~
	*1.25" square bar, sharpened to a 45 deg angle

	~~=Log Handling=~~
	*CAT 966 was industry standard for large sawmills; largest logs are 14000 lb
	*John Deere 450 bulldozer - entry level, handy tool
	*Yale lift

	~~[[Category:Dimensional Sawmill]]~~
	~~[[Category:Sawmill~~]]

Marcin: /* Conceptual Design */

2011-07-25T12:53:46Z

Conceptual Design

← Older revision		Revision as of 12:53, 25 July 2011
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	=Conceptual Design=		=Conceptual Design=
	[[Image:sawmill.jpg]]		[[Image:sawmill.jpg\|300px]]

	=CAD=		=CAD=

Marcin: /* Conceptual Design */

2011-07-25T12:53:34Z

Conceptual Design

← Older revision		Revision as of 12:53, 25 July 2011
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	=Conceptual Design=		=Conceptual Design=
	[[Image:sawmill.jpg~~\|600px~~]]		[[Image:sawmill.jpg]]

	=CAD=		=CAD=

Marcin: /* Outstanding Design Issues */

2011-07-25T02:33:14Z

Outstanding Design Issues

← Older revision		Revision as of 02:33, 25 July 2011
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	=Outstanding Design Issues=		=Outstanding Design Issues=
	*Hydraulic hose cabling guide		*Hydraulic hose cabling guide
			*Multiple edger blades in future
			*Crank edger adjuster

	=Action Points=		=Action Points=

Marcin: /* Design Notes and Rationale */

2011-07-25T02:32:43Z

Design Notes and Rationale

← Older revision		Revision as of 02:32, 25 July 2011
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	*2-stage dogs - one for staring the log (high center of gravity), and second for low center of gravity		*2-stage dogs - one for staring the log (high center of gravity), and second for low center of gravity
	*May want to flip log if it's difficult to hold towards the end		*May want to flip log if it's difficult to hold towards the end

			=Outstanding Design Issues=
			*Hydraulic hose cabling guide

	=Action Points=		=Action Points=

Marcin: /* Design Notes and Rationale */

2011-07-25T02:23:49Z

Design Notes and Rationale

← Older revision		Revision as of 02:23, 25 July 2011
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	'''Carriage''''		'''Carriage''''
	*Clearance of 1/8" around gantry		*Clearance of 1/8" around gantry
	*
			'''Hydraulic Hoses'''
			*4 Hoses
			*Mast at either end

	'''Trailer Hitch'''		'''Trailer Hitch'''

Marcin: /* Design Notes and Rationale */

2011-07-25T02:17:16Z

Design Notes and Rationale

← Older revision		Revision as of 02:17, 25 July 2011
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	*Clearance of 1/8" around gantry		*Clearance of 1/8" around gantry
	*		*

			'''Trailer Hitch'''
			*Telescoping piece of tubing in frame
			*Hitch retracts for sawmill operation

	'''General'''		'''General'''

Marcin: /* Materials Sourcing */

2011-07-25T01:00:20Z

Materials Sourcing

← Older revision		Revision as of 01:00, 25 July 2011
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	*Rack - 8' - [http://opensourceecology.org/wiki/Great_price_on_the_rack]		*Rack - 8' - [http://opensourceecology.org/wiki/Great_price_on_the_rack]
	*[2] Main shaft pillow block bearings, 1-7/8" - [https://www.surpluscenter.com/item.asp?item=1-210-30-P&catname=powerTrans]		*[2] Main shaft pillow block bearings, 1-7/8" - [https://www.surpluscenter.com/item.asp?item=1-210-30-P&catname=powerTrans]
			*[2] Secondary blade pillow block bearings - [https://www.surpluscenter.com/item.asp?item=1-208-24-P&catname=powerTrans]

	=Fabrication=		=Fabrication=

Marcin: /* Materials Sourcing */

2011-07-25T00:29:14Z

Materials Sourcing

← Older revision		Revision as of 00:29, 25 July 2011
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	*[4] 2-bolt, 1/2" flange bearing for y (lengthwise) motion - for pinion gear shaft		*[4] 2-bolt, 1/2" flange bearing for y (lengthwise) motion - for pinion gear shaft
	*Rack - 8' - [http://opensourceecology.org/wiki/Great_price_on_the_rack]		*Rack - 8' - [http://opensourceecology.org/wiki/Great_price_on_the_rack]
	*[2] Main shaft pillow block bearings, 1-7/8"		*[2] Main shaft pillow block bearings, 1-7/8" - [https://www.surpluscenter.com/item.asp?item=1-210-30-P&catname=powerTrans]

	=Fabrication=		=Fabrication=

Marcin: /* Materials Sourcing */

2011-07-25T00:20:52Z

Materials Sourcing

← Older revision		Revision as of 00:20, 25 July 2011
Line 92:		Line 92:
	*[4] 2-bolt, 1/2" flange bearing for y (lengthwise) motion - for pinion gear shaft		*[4] 2-bolt, 1/2" flange bearing for y (lengthwise) motion - for pinion gear shaft
	*Rack - 8' - [http://opensourceecology.org/wiki/Great_price_on_the_rack]		*Rack - 8' - [http://opensourceecology.org/wiki/Great_price_on_the_rack]
			*[2] Main shaft pillow block bearings, 1-7/8"

	=Fabrication=		=Fabrication=