Horizontal attachment Dovetail dimensions needed.

Bill Harrison · May 13, 2019

I have managed to pick up a Bridgeport Horizontal adapter/drive/90 degree head and I have a 1" arbour but now I need to make the Arbour Support Bracket that sits on the dovetails behind the head.

Can anyone point me in the direction of a drawing with the Dovetail specs please?

I have tried searching the forum and Google but had no joy.

Thanks to all in advance.

ripperj · May 13, 2019

You can’t measure the mill?

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Mal01 · May 13, 2019

Bill
I measured my Bridgeport for the same reason, doing it accurately across pins. You need to check yours is the same though.

Ram dovetail angle: 50 degrees
Across root of dovetail: 84.75mm
Across tips of dovetail: 132.18mm
Height of dovetail: 28.26mm

These dimensions don’t include the inevitable radii at root and tip.

Hope this helps,
Mal

naru · May 17, 2019

NICE BRIDGEPORT HORIZONTAL MILLING ARBOR SUPPORT 11/16" PILOT BUSHING | eBay

This is on eBay, not much time left but probably easier than making your own.

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Horizontal attachment Dovetail dimensions needed.

Bill Harrison

Plastic

ripperj

Stainless

Mal01

Plastic

naru

Aluminum

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