CNC Sawmill: Difference between revisions

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=Concept=
*Integrate Marlin/RAMPS/Touchscreen since we already use it - with larger stepper motors as chain axis drive for the sawmill - [https://chatgpt.com/share/694dee2a-7a80-8010-ad4b-862460f5c3af]
*{{check}}Sure, but use a more dedicated GRBL/RAMPS with touchscreen. [https://chatgpt.com/share/694dee2a-7a80-8010-ad4b-862460f5c3af]. Can be productized.
*But - second route still requires a custom touchscreen with its own MCU, not the standard screens from Marlin - so the [[Degeneracy]] criterion fails.
*{{check}}{{check}}thus, just modify Marlin, and while not designed for industrial cnc, if we reprogram Marlin, we make it as effective as GRBL/LinuxCNC if we pay attention to programming in added functionality. [https://chatgpt.com/share/694dee2a-7a80-8010-ad4b-862460f5c3af]. The open source revolution is nigh.
**For future proof industrial grade, go to 32 bit controller like Due, which is not more expensive [https://chatgpt.com/share/694dee2a-7a80-8010-ad4b-862460f5c3af]
**And do not try to rewrite a motion kernel - Marlin is already 10+ years of development. [https://chatgpt.com/share/694dee2a-7a80-8010-ad4b-862460f5c3af]
=Working Doc=
=Working Doc=
<html> <iframe src="https://docs.google.com/presentation/d/e/2PACX-1vSzAAA--rujCzU5NU4TiflEvgXWslFzp-jHqYWLxfeN4iLNQ6iKMEAbnjdre1_dCq_eJcwbtjJ-jISc/embed?start=false&loop=false&delayms=3000" frameborder="0" width="480" height="389" allowfullscreen="true" mozallowfullscreen="true" webkitallowfullscreen="true"></iframe> </html>
<html> <iframe src="https://docs.google.com/presentation/d/e/2PACX-1vSzAAA--rujCzU5NU4TiflEvgXWslFzp-jHqYWLxfeN4iLNQ6iKMEAbnjdre1_dCq_eJcwbtjJ-jISc/embed?start=false&loop=false&delayms=3000" frameborder="0" width="480" height="389" allowfullscreen="true" mozallowfullscreen="true" webkitallowfullscreen="true"></iframe> </html>
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[[File:3foottruss.png|100px]][[File:rails.png|100px]][[File:sawmillframeassy2.png|100px]][[File:sawmillframeassy.png|100px]][[File:smalltruss.png|100px]][[File:cncsaw3.png|100px]][[File:cncsaw2.png|100px]][[File:cncsaw.png|100px]]
[[File:12footrebartruss.png|100px]][[File:assemblywithrails2.png|100px]][[File:assemblywithrails.png|100px]][[File:3foottruss2.png|100px]][[File:3foottruss.png|100px]][[File:rails.png|100px]][[File:sawmillframeassy2.png|100px]][[File:sawmillframeassy.png|100px]][[File:smalltruss.png|100px]][[File:cncsaw3.png|100px]][[File:cncsaw2.png|100px]][[File:cncsaw.png|100px]]




<gallery perrow=6>
<gallery perrow=6>


File:3foottruss.png|'''3 foot truss.''' - FreeCAD -[[File:3foottruss.FCStd]]
File:12footrebartruss.png|'''12 foot truss, 4-sided.''' - FreeCAD -[[File:12footrebaruss.fcstd]]
 
File:3foottruss2.png|'''3 foot truss.''' - FreeCAD -[[File:3foottruss.FCStd]]


File:sawmillframeassy2.png|'''CNC Saw Assembly.''' - FreeCAD -[[File:cncsawassy.FCStd]]
File:assemblywithrails2.png|'''CNC Saw Assembly.''' - FreeCAD -[[File:cncsawassy.FCStd]]


File:smalltruss.png|'''Small truss.''' - FreeCAD -[[File:smalltruss.FCStd]]
File:smalltruss.png|'''Small truss.''' - FreeCAD -[[File:smalltruss.FCStd]]


File:cncsaw.png|'''Sawmill.''' - FreeCAD -[[File:cncsaw.FCStd]]
File:cncsaw.png|'''This has the underlying truss sketch.''' - FreeCAD -[[File:cncsaw.FCStd]]
File:cncsaw2.png|'''Sawmill truss.''' - FreeCAD -[[File:cncsawtruss.FCStd]]
File:cncsaw2.png|'''Sawmill truss.''' - FreeCAD -[[File:cncsawtruss.FCStd]]


Latest revision as of 04:06, 26 December 2025

Concept

  • Integrate Marlin/RAMPS/Touchscreen since we already use it - with larger stepper motors as chain axis drive for the sawmill - [1]
  • Check.pngSure, but use a more dedicated GRBL/RAMPS with touchscreen. [2]. Can be productized.
  • But - second route still requires a custom touchscreen with its own MCU, not the standard screens from Marlin - so the Degeneracy criterion fails.
  • Check.pngCheck.pngthus, just modify Marlin, and while not designed for industrial cnc, if we reprogram Marlin, we make it as effective as GRBL/LinuxCNC if we pay attention to programming in added functionality. [3]. The open source revolution is nigh.
    • For future proof industrial grade, go to 32 bit controller like Due, which is not more expensive [4]
    • And do not try to rewrite a motion kernel - Marlin is already 10+ years of development. [5]

Working Doc

edit

Part Library

Part Library

Visual History:


12footrebartruss.pngAssemblywithrails2.pngAssemblywithrails.png3foottruss2.png3foottruss.pngRails.pngSawmillframeassy2.pngSawmillframeassy.pngSmalltruss.pngCncsaw3.pngCncsaw2.pngCncsaw.png


Options

  • Use a 16" circular saw with 2" universal axis. Advantage: turnkey saw. Dis: small cuts only up to 4 or 6", slow (power only 3 hp)
  • Use long space frame axis for stability, mount on trailer or SMV
  • Use mobile stiff frame on wheels

Industry Standards

  • China wares - [6]
  • Lucas Sawmill - [7] - setup time with wires for stability is a disadvantage. Solid space frame for moving the OSE mill into the field would help. Peterson [8] setup time is no better. But, it can be set up in the field on rough terrain.

Decisions

  • Portable or stationary
  • Rough terrain or not
  • CNC or manual
  • Easy to set up (solid frames) vs not (multi-piece frames with need to align)
  • Hand portable vs heavy, requiring other machines to move it
  • Production (32 hp - 100 hp) vs hobby (7 hp - 27 hp)
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