SIEG SX3.5DZP - VERSATILE MILLING VICE STOP






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I bought the 125mm Versatile Milling Vice from ArcEuroTrade. It is a great vice. It is very versatile!

The Versatile Milling Vice has quite a few M8 tapped holes that can be used for various contraptions.

This is a vice stop I made. I took particular care to ensure that all the components were made square and true, and were a good fit with their mating components. The result is a tool that is accurate and easy to use.

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SX3.5DZP - VERSATILE MILLING VICE STOP


↓ Here are the components.

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↓ Main Bar

Main Bar - length = 127 mm
Main Bar - width = 17.3 mm
Main Bar - thickness = 12.5 mm
Main Bar - slot length = 60 mm
Main Bar - slot width = 10 mm
Main Bar - holes (2 off) = 8 mm diameter

There are two 8mm holes, so the Vice Stop bar can be positioned for narrow and wide work.
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↓ Washer

Washer - diameter = 17.2 mm
Washer - thickness = 3 mm

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↓ Top Hat Washer

Top Hat Washer - large diameter = 19.5 mm
Top Hat Washer - small diameter = 10 mm
Top Hat Washer - overall length = 15.3 mm
Top Hat Washer - length of small diameter section = 12.4 mm
Top Hat Washer - length of large diameter section = 2.9 mm
Top Hat Washer - bore diameter = 8 mm

The Top Hat Washer is an important component.
The M8 thread of the Screw Handle is a good fit (i.e. not too loose) in the bore of the Top Hat Washer.
The Top Hat Washer is a very good fit (i.e. not too loose) in the slot of the main bar.
The Main Bar slides back and forth on the Top Hat Washer.
The Top Hat Washer also acts as a spacer, to keep the main bar just clear of the vice jaw.

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↓ Screw Handle

Screw - overall length = 37.8 mm
Screw - thread length = 33 mm
Screw - thread = M8
Screw - handle length = 53.4 mm
Screw - handle diameter = 3 mm

The 3mm handle is glued and fixed into the screw head.
I found the tool was awkward to use if the 3mm handle was loose.

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↓ Keeper

This is just a rough cylinder with an M8 thread through it.
It is merely used to retain the Screw Handle on the Main Bar, when the tool is stored in its' drawer.

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↓ Vice Stop Bar

Stop Bar - overall length = 168 mm
Stop Bar - diameter = 8 mm
Stop Bar - flat surface width = 5 mm
Stop Bar - hex nut length = 14.5 mm
Stop Bar - hex nut across flats = 12.65 mm

The moveable bar has a 5mm wide flat surface. The locking screw bears down on the flat, to secure the bar in position.
Without the flat surface, the 8mm diameter bar will get marred by the locking screw, and it will jam in the 8mm hole.
There is a large heaxagonal grip on one end.
The end opposite to the grip is accurately faced in the lathe; because it is the end that contacts the work being held in the vice.

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↓ Locking Screw

Hex Locking Screw - length = 14.5 mm
Hex Locking Screw - across flats = 12.65 mm
Hex Locking Screw - male thread = M3
Hex Locking Screw - male thread length = 6.6 mm

I had some 1/2 inch hex brass bar laying around unused. It makes a good grip.

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↓ The tool is a joy to use.

The Main Bar is easily rotated and extended, so that the Vice Stop Bar can be moved into the required position against the work.

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If you look closely, you can see that the Vice Stop Bar is parallel to the vice jaw.
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