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Yep ! Worked on these in the early 1960’s still in my apprenticeship, they used a master component to copy and machined two more on each pass. ?Yes punched tape had just arrived as well. The

Here's a bit about these tracer models on this website: http://www.lathes.co.uk/bridgeport/page3.html

These machines were a platform for production.? They were generally always at the cutting edge of performance and imagination.? Creating things that were almost more sculpture than mere

It's a production rig.? Three parts, all getting the? ?same? operation at the same time Cliff Rohrabacher Esq. -- Sent with Tutanota; enjoy secure & ad-free emails: https://tutanota.com Feb

That's sort of what I was thinking. I don't see how it would have been beneficial unless it was something with, "one hole", or holes using the same tooling/ drilling operations.?

No, never have - I'm guessing a special for some production process pre-dating CNC machines with tool-changers!

What kind of milling do you do with that set up? A different tool chucked in each head? Looks like more of a P.I.T.A than anything else.

In a marketplace advertisement I saw a Bridgeport with tree heads, i have never seen such a version, anyone of you?

Thanks for the idea. I was thinking about just plunging into the flat sheet with a mini fly cutter. I can see a benefit to using the lathe though. Quicker to just dial into the right O.D. Instead of

The lathe is the way to go. Brittle materials like acrylic don't respond well to punching. Sharp tool bit with zero rake angle and a little nose radius works very well. The rubber padding is

Hello all, First off, I apologize for any cross posts. Lately, I’ve been fixing a few “parts only” dial and dial test indicators that I picked up on eBay. I’m thinking about getting some

Hey David.... Finally found & replied !

Thanks for the pictures Marty. I am thinking that I could make a similar bracket out of 16 gage sheet steel or sheet aluminum to fit the SHARS 4” DRO. ? If I extrapolate the 6” scale drawing, I

Well David .... I wasn't even looking for it , but there it was staring up at me from the drawer. Kind of stunned me that it still sells for $250 + new ,with all the $20 dollar alternatives these

disposal of some tools, cutters etc

The M head is quite a bit smaller than the J head and there is a lot less room due to the sheave cover extending beyond the main casting.? ?I have attached some pictures. I am thinking I will make

I made my own brackets to fit a scale on my J-head. My brackets move the scale off to the right. I still have access to the nuts to tram the head, to use the fine feed hand wheel and to be able to

David, I have one of these IP54 Digital Scale kits fitted to my 'J-Head' Bridgeport. I find it very good for those occasions where I advance the quill instead of the knee. IP54 Digital Quill Kit

Thanks for the reply Marty. I’ve seen you tube videos and articles about adding the DRI’s to J heads, but haven’t seen anything about adding these to M heads. I don’t want to jury rig a

I had actually acquired one years ago on a package deal ,but for a J-Head of course. Only for me to realize that I -DO- use the STOP that's there. And have a QUICK CLAMP for the one time use jobs.?