Sawmill/Development

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Sawmill 3d picture 2.jpg
Sawmill picture 2D top.jpg

Please answer any questions on the Sawmill_Questions page if you can. Thank you!


A sawmill enables custom lumber production on site using locally available timber. We are particularly interested in a dimensional sawmill. A dimensional sawmill is a circular blade sawmill for producing dimensional lumber. It consists of two blades attached at a right angle to one another, allowing the production of a dimensional member in one pass of the mill. Distributed sawmilling has the potential for distributing the production of dimensional lumber, thus creating less dependence on clear-cutting of lumber plantations. Wood construction is one of the earliest methods of building shelter. Current lumber production is highly concentrated industry save the specialty wood shops producing for novelty wood workers. Unsound harvesting practices and high transportation costs make commercial lumber environmentally costly. Timber can be locally harvested. With a simply designed, low cost sawmill we can produce fine quality lumber sustainably and economicaly.


Product Definition[edit]

Sawmill - Product Definition


Sawmill Design Rationale[edit]

Sawmill - Design Rationale


Sawmill Research[edit]

Sawmill Research


Sawmill Development Plan[edit]

Overview[edit]

Design[edit]

Current phases in bold. Next phase in italic.

  • With design rationale, put it up for review on Red Pages

* Design in 3d, go through cutting workflow, split up design into pieces and finish them one at a time

* Get feedback on sub-piece design, post on sawmilling forums

  • Iterate design and feedback until design is finalised
  • Make bill of materials for final design

Test Construction[edit]

  • Build space frame and platform frame as a first test, to test x axis motion
  • Test x axis motion

Construction[edit]

  • Purchase one blade, 30", 2 blades, 12"
  • Build cutting head - gear up the blade
  • Install all safety devices before operating
  • Test sawmill operation without blades attached

Sawmill Design Log[edit]

See Sawmill Design Developments

Sawmill Design 1[edit]

Sawmill - Design 1

Sawmill Design 2[edit]

Sawmill Design 2

Sawmill - Design Calculations[edit]

Sawmill - Design Calculations

Sawmill - Current Work[edit]

We have a hydraulically-driven PTO motor as a start. It will be powered by LifeTrac. LifeTrac has this pump from Northerntool - [1]:

Hydgearpump.jpg

All hoses are already available - it is part of our flexible open source tractor infrastructure. Here are the motor specifications, from Surpluscenter.com:

Pto motor.jpg

Here is the hookup diagram:

Pto motor hookup.jpg

Note: Since we have 3600 PSI available, we can run 2 of these motors in series to match available power more closely.

A very preliminary prototype drawing, top view:

Sawmill picture 2D top.jpg

3D CAD - Using Blender[edit]

Preliminary 3d pictures of the sawmill:

Sawmill 3d picture 1.jpg
Sawmill 3d picture 2.jpg

Bill of Materials[edit]

See Sawmill Bill of Materials

Collaboration[edit]

Current Steps[edit]

See Sawmill_Project_Status for detailed current status and past history actions.

Current Stage:

Developments Needed[edit]

Collaborators Sign-Up List[edit]

If you'd like to collaborate on this project please email the Project Lead listed below with the following

Subject: Name, email, and Skype are preferable.

Listed below are the collaborators on this project

  • Temporary Project Lead - {Need Name of Lead} project lead's email dot com, phone xxx.

List of Prototyping Collaborators with Access to Fabrication Capacity[edit]

Resource Development[edit]

See Sawmill - Resource Development.

Documentation and Education[edit]

section unfinished (this section is dedicated to preparing and disseminating results, in the form of publications and technical reports.)

Documentation[edit]

Sawmill Prototypes[edit]

Education[edit]