Rotary table

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Blogwitch said:
Wizard, spot on.

On commercial ones, they stake the bottom of the nut so the thread just can't pass through, unless you are a gorilla with a spanner, but who would admit to that?

John
Click to expand...


The only exceptions I know of are things like low profile clamps where the idea is to look the clamp in the slot. Here though the goal is understood in the design of the clamp. That is the user should understand the clamp and how it works.

For the really small machines some modelers make use of the sudden tin a few entries ago to silver solder nuts to create T-Bolts is a good one. This would be especially good if there isn't enough beef to hold threads partially into the nut.
 
This dividing plate fits the Phase II 4" Rotary Table (PN 1727) and the 4" H/V rotary table (PN 1927). It consists of one plate with a set of 10 holes. This lets you divide a circle into 1/2 degree increments.
Because this is 1/720 of a circle, you can also divide a circle into any number of parts that can be evenly divided into 720. You can divide a circle into the following number of divisions 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720.
 
Here is a PDF chart that has the corrected setups for the Vertex 6" RT and it's generic copies using the plates provided. This, as far as I know, should also be able to be used with the 4" version. It will save you a lot of time calculating things out as everything is shown and is easily understandable.
This isn't mine BTW, just something that was shown on another site where the same sort of discussion is going on.
As you can see, there are quite a few gaps in the sequences that this RT can't achieve, and other RT's have the same problem, maybe more on other makes that use a different worm and wheel angle.

This is where a digital setup, like the Arduino and Divisionmaster score. My Divisionmaster can give me all numbers up to 9999, plus it is able to very accurately machine radii, curved slots of any angle plus full rotational machining under power.

John

View attachment vertex division settings.pdf
 
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