Duncans Metal Pages
B: Links
Last updated: 13 Nov 2018


Division ratios

Not much out there on these machines, I'm afraid.  If you know of any web sites with any information on this hobber, please email me.



  • Ash Gear manufacture a large variety of hobs, broaches and cutters from stock, with specials available to order.
  • College Engineering Services produce a set of castings for the machine which I understand was much improved and called the "Helix".  It uses iron castings for the major parts and the base.
  • mwmills2 Yahoo! group has various plans for gear cutting machines including the Jacobs Hobber.

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