Victor Repair Bench

[JerryVan]

Django,

Thanks for posting the picture of the Moore jig grinder, that really is a cool piece of antique technology. At first look with all the drawers extended, etc it looks like it might have been H.G. Wells’ inspiration for the Traveler in the Time Machine.

Is there still a modern equivalent for making jigs for machining operations or has CNC pretty well replaced them?
Not having a CNC mill I made some drilling jigs with my manual milling machine for locating holes in some of the 10-50 changer parts that I hope to introduce in the spring. A jig allow quick and repeatable hole positioning.

Back to Simple’s question about building one of these, short of a measured drawing, have we provided enough details and are you ready to start?

Mark

Mark,

This is a Jig Grinder...

And this is a Jig Grinder bench/cabinet...

moore.jpg (31.5 KiB) Viewed 316 times

[MarkELynch]

Jerry,

Thanks for posting the photo, that is a substantial piece of equipment! Is that located in your business?

Have any of you read in the Victor meeting notes at Hagley about the various money allocated towards purchasing machine tools and equipment? Victor was not shy about spending money on labor saving equipment and disposing of obsolete equipment in the interest of efficiency. Costs of machinery, adding a new wharf, purchasing a new electric truck to move materials, condensers for the powerhouse, etc, etc. It is all documented but no mention of a jig borer. When did they come into use?

Mark

[JerryVan]

Jerry,

Thanks for posting the photo, that is a substantial piece of equipment! Is that located in your business?

Have any of you read in the Victor meeting notes at Hagley about the various money allocated towards purchasing machine tools and equipment? Victor was not shy about spending money on labor saving equipment and disposing of obsolete equipment in the interest of efficiency. Costs of machinery, adding a new wharf, purchasing a new electric truck to move materials, condensers for the powerhouse, etc, etc. It is all documented but no mention of a jig borer. When did they come into use?

Mark

We have 3 of those in the shop where I work. I do not operate them, but they are in my department and are used for "my jobs". The pictures I posted were borrowed from the internet. I believe Jig Bores came into use in the 20's or 30's. Moore Jig Bores are rather small. Pratt & Whitney made some fairly big stuff that I believe pre-dates the Moore machines. Sadly, the numbers of people who know how to operate Jig Bores & Jig Grinders are dwindling quickly. They are marvelous machines, in the right hands. Made for extreme accuracy*, but not for extreme speed.

*Jig Grinders can be used to locate and grind holes and profiles to within millionths of an inch... in the right hands. Jig Bores/Borers can offer similar precision, but are for machining soft, (not hardened), materials.