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Forum: Driving Mechanisms: Rack/pinion, gears, screws, belts & chains

Tue 16 November 2010, 07:38

Replies: 8

Problem drilling the pinion concentric

Views: 14,347

Posted By jwt

Good point Red. Me too Sean. :)

Good point Red. Me too Sean. :)

Forum: Driving Mechanisms: Rack/pinion, gears, screws, belts & chains

Mon 15 November 2010, 14:03

Replies: 8

Problem drilling the pinion concentric

Views: 14,347

Posted By jwt

Supplier wants 62 pounds sterling, roughly 75...

Supplier wants 62 pounds sterling, roughly 75 euro extra to bore 5 pinions to 14mm.

Bit saucy I think.

I'll ring around and see if I can find a local engineering shop that could do it for me
...

Forum: Driving Mechanisms: Rack/pinion, gears, screws, belts & chains

Fri 12 November 2010, 14:19

Replies: 8

Problem drilling the pinion concentric

Views: 14,347

Posted By jwt

let me see if I've got this right.... You...

let me see if I've got this right....

You are rotating the pinion in the drill press chuck.

The HSS drill bit is held stationary in the jacob chuck which is bolted to the drill press table
...

Forum: Driving Mechanisms: Rack/pinion, gears, screws, belts & chains

Fri 12 November 2010, 13:52

Replies: 8

Problem drilling the pinion concentric

Views: 14,347

Posted By jwt

Problem drilling the pinion concentric

I've just trashed 5 pinions trying to drill them concentric using a good drill press a vice, a vice and clamps, a vice clamps and accurately centered pinion.

the existing pinion hole is 10mm, the...

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