Dimensional Sawmill: Difference between revisions

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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=
 
'''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
 
'''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'''y
*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
 
=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
 
=Fabrication=
*Anneal blade to machine
*Harden blade by heating and quenching
*Surface grind to flatness
 
[[Category:Dimensional Sawmill]]
[[Category:Sawmill]]

Latest revision as of 03:16, 26 August 2011

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