Re: [CAD_CAM_EDM_DRO] Re: Asian Lathe Conversion

Motor is mounted on an auxillary hanger that bolts up to face of HS. Drives
a pulley from there at 2.5:1, and that is on layshaft with a pinion. Pinion
meshes with bull gear mounted on the lathe spindle, in this case hung right
on back of chuck mounting plate. Overall ratio is about 4200 steps/rev, so
plenty of reduction is available for driving the work. The software accepts
the overall ratio and uses that to compute the right amount to move spindle
for a given number of turns.

Sequence of ops is, move in, feed spindle and Z axis of lathe to make the
thread pass, terminate the thread with a cham pass, move out, return to
starting point. Repeat til thread depth is reached, then make a finish pass.

Software can cut any thread in metric or inch, with taper if the slope is
specified in config menu.

Motor is a 600 oz/in, and spindle is at about 300 RPM or so.



At 04:37 PM 1/3/03 -0000, you wrote:

>Ah.. Now thats just too easy.
>What is your spindle arrangment?
>Size Motor, Speed, Linkage...?
>Tom M.
>
>> Mr. McKagen wrote....
>>
>> I do all my threading with a stepper to drive spindle too.
>> Then threads are nothing more than another style of three-axis
>> movements.
>>
>> Regards, Hoyt McKagen
>>
>
>
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Regards, Hoyt McKagen

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