How to Lock Slides on Pre Mk3 BCA. Jig Borer

This topic has 3 replies, 3 voices, and was last updated 7 March 2022 at 19:38 by Mark Rand.

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7 March 2022 at 15:59 #588638
Gregory Savage
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@gregorysavage74817
Hello, I have a pre MK3 BCA Jig Borer. It has a silver locking knob on the vertical slide, however unlike the Mk3 it does not have similar knobs below the longitudinal and transvers slides. This may be a silly question, but how do you lock the slides on this early BCA. Any help would be appreciated.
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7 March 2022 at 15:59 #28615
Gregory Savage
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@gregorysavage74817
7 March 2022 at 17:46 #588653
Oldiron
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@oldiron
Menber The Knackler's Workshop has a Mk2 BCA jig borer. If he sees this post he may be able to help.

regards
7 March 2022 at 19:38 #588674
Mark Rand
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@markrand96270
1) Adjust the handle nuts so there is some drag on the screws and the feed screw nuts so the backlash is minimal. This reduces any tendancy for the slide to move under vibration.

2) If 1 isn't sufficient, then nip up one of the gib screws when you need to lock the slide, you shouldn't need this though.
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How to Lock Slides on Pre Mk3 BCA. Jig Borer

How to Lock Slides on Pre Mk3 BCA. Jig Borer

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