[modeleng] Re: Rotary tables
- From: "Ron Head" <ron.head@xxxxxxxxxxxxx>
- To: <modeleng@xxxxxxxxxxxxx>
- Date: Tue, 5 Dec 2006 19:17:13 -0000
Hi Peter
Looks like you will have to take the table apart and investigate, it sounds
as if the bearings are mounted 0.002" off centre. I had a different kind of
problem with my Vertex table, in that the backlash wasn't constant all the
way round, enough to cause a spacing error when drilling a ring of holes. I
found this was due to the worm gear being mounted slightly off centre, but
now that this is corrected, the table is fine. If I remember correctly, I
had to make a special pin spanner to undo the bottom nut that takes up the
play in the thrust race, and holds the thing together.
Regards
Ron
----- Original Message -----
From: <peter.chadwick@xxxxxxxxxxx>
To: <modeleng@xxxxxxxxxxxxx>
Sent: Saturday, December 02, 2006 8:28 AM
Subject: [modeleng] Rotary tables
> How much error is to be expected on a rotary table in terms of
> eccentricity? With a #1 Morse tapor arbor fitted into the thing (the end
> of the arbor is about 1 inch diameter) I get a peak to peak eccentricity
> of 0.004 inches. Is this a normal level of error?
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