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ATX HackerSpace Pages relating to the mini-mill
Central Machinery 44991 Manual Mini-Mill
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Grizzly G8689 Manual Mini-Mill.jpg

This mini-mill is to be used primarily for metal or plastics. Special instructions are needed if using this mill on steel. Please discuss the necessary precautions involving steel as a material with the owner, Andy Darling, if you need to work steel for a project. Do not use on wood.

See also: Taig Mini-Mill

Requires Owner Approval to Become Qualified for Operation

If you would like a class on operating the mill, please contact the owner, Andy Darling. If you are interested in using the lathe and feel you have prior qualifications, you must apply for approval to the owner, Andy Darling.


  • Dovetail column
  • Safety shut off switch
  • Adjustable depth stop
  • Fine feed head control
  • Geared drive
  • Clear guard on spindle
  • Rubber chip guards on ways
  • Zero setting dials read in inches
  • Adjustable dovetail ways on column
  • 3/8" and 1/2" collets
  • 1/2" drill chuck
  • Two T-nuts
  • Made in an ISO 9001 factory


  • Motor: 3/4 HP, 110V, single-phase
  • Spindle taper: MT #3
  • T-slots: 2 @ 1-1/8" centers, 7/16" wide
  • Head travel: 7-1/2"
  • Head tilt: 45° L/R
  • Max. distance spindle to table: 11-1/2"
  • Swing: 12-3/4"
  • Table travel (longitudinal): 7-5/16"
  • Table travel (cross): 4"
  • Table size: 3-5/8" x 15-3/4"
  • Range of speeds: Variable, 0–2500 RPM
  • Approximate shipping weight: 149 lbs.

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