Setting lathe top slide angle accurately.

[Chris TriceParticipant @christrice43267]

Posted by Tim Stevens on 26/12/2018 15:38:41:

A brief caution regarding printing a drawing: Check that the printer actually produces the same scale in both directions. Most are near, but not all are bang on. And do not rely on paper or card being really stable in moist or dry conditions. They can shrink or stretch more one way than the other.

Not really a problem unless you are after accuracy – but sometimes, we all are.

Seasonable Yuletide wossnames

Tim

What Tim said. I fell foul of this when scanning some drawings from tracing paper, printing them and then offering them up under the original trace to discover they were the same width but shrunk top to bottom (on portrait mode with A4).

[Chris Evans 6Participant @chrisevans6]

Whilst we are on this theme lets touch on the difficulty of measuring a tapered part. I usually calculate a couple of steps and produce known distance in from the end and diameter to suit using a sharp tool. It is then simple to just blend to the witness.

[Nigel McBurney 1Participant @nigelmcburney1]

When using a machined face on the side of the topslide,just check that the face is parallel to the top slide vee slides before setting up any angles.

[Author]

Posts