Vertical mill engine

[Eric CoxParticipant @ericcox50497]

In ME 4499, p97 Stewart Hart describes a jig for drilling the 3mm holes in the cross arm ends. An alternative method would be to make the eight ends first then make a simple jig similar to Stewarts consisting of a plate with two 3mm pegs with a pitch of 60mm and protruding by 5mm. Use the jig to assemble the components, ie apply Locktite to the cross arm, fit the two ends and place on the jig to set. The jig and component can then be turned on its side and held in the drill vice to drill the two 1.5mm holes for the 1/16 dowel pins.

[Eric CoxParticipant @ericcox50497]

[Author]

Posts