Oh Blimey I bought a CNC Lathe !!!!

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awemawson:
Yes Adev I'm expecting it to be a parameter - my Traub 'mole' is on holiday until Tuesday :( so hopefully progress after that. I can work round it. Been doing some tests today and proved it is simply a factor of 1000 in each axis when using the "Automatic Tool Measurer" key - every other display is correct as far as I can tell, so I'm just manually editing the entries at present and I can at least now set tools with reasonable accuracy.

It's an odd system, to call a tool the 'T' word takes the form Tmmnn where mm is the tool number (which has it's associated tool offset in X&Z from the tool table) and nn is an additional 'Tip offset' which is another table with entries for each of the 80 possible tools. So I suppose theoretically you could use the tip offset for tool 7 with tool 10 by calling T1007 but why you would want to goodness only knows. The second entry seems superfluous as surely you will always use the tip offset for the tool it was measured on.

Talking of tools, does anyone recognize the letters and numbers on this parting tool holder - I want to identify which tips it takes. It's obviously a cut down 'double ended' self retaining type and is 31mm high and 2.5mm thick the insert 'gap' is about 7mm tall:

AdeV:

--- Quote from: awemawson on July 14, 2013, 10:44:36 AM ---
It's an odd system, to call a tool the 'T' word takes the form Tmmnn where mm is the tool number (which has it's associated tool offset in X&Z from the tool table) and nn is an additional 'Tip offset' which is another table with entries for each of the 80 possible tools. So I suppose theoretically you could use the tip offset for tool 7 with tool 10 by calling T1007 but why you would want to goodness only knows. The second entry seems superfluous as surely you will always use the tip offset for the tool it was measured on.

--- End quote ---

Could the second reading to be to take into account wear? Seems unlikely I'll admit, unless the lathe is capable of resharpening bits (at the expense of length) "on the job".

Pete.:
I was thinking just the same. In the early 90's I worked briefly in a place that made hydraulic rams and they had a load of 'new' cnc machines. Quite new technology at the time and I do recall one of the operators explaining how the machine could increment the tool forward the tiniest amount each cut to allow for tip wear.

Henning:
Congrats on getting the beast running and not least making swarf! :clap: :bow: :nrocks:

Now i look forward to the first part produced!

lordedmond:
Not to pollute the other thread re en8

Will the lathe be makings replicating itself by making its own parts :D

Stuart

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