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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
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Iggy... syncronizing spindle
Ig,
I've come up with a potential application that would require me to syncronize three rotary motions simultaneously. Similar to what you did with rigid tapping, but with a non-milling machine. However, it seems EMC^2 might be the tool to do it. Would you be willing to share the code/system configs you used to sync your spindle with Z for tapping? Thanks, LLoyd |
#2
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Iggy... syncronizing spindle
On 2011-02-06, Lloyd E. Sponenburgh lloydspinsidemindspring.com wrote:
Ig, I've come up with a potential application that would require me to syncronize three rotary motions simultaneously. Similar to what you did with rigid tapping, but with a non-milling machine. However, it seems EMC^2 might be the tool to do it. Would you be willing to share the code/system configs you used to sync your spindle with Z for tapping? Lloyd, I will share absolutely everything I know. i |
#3
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Iggy... syncronizing spindle
"Lloyd E. Sponenburgh" lloydspinsidemindspring.com wrote:
Ig, I've come up with a potential application that would require me to syncronize three rotary motions simultaneously. Similar to what you did with rigid tapping, but with a non-milling machine. However, it seems EMC^2 might be the tool to do it. Would you be willing to share the code/system configs you used to sync your spindle with Z for tapping? OK, there are probably two ways to do this. If what you are trying to do can be expressed in the form of G-code, then EMC2 might be used generally the way it is. But, that is mostly one of the threading cycles, like G33. It pretty much wants to synch Z movement to the spindle. Now, this assumes you are wanting to synch something to a motion that EMC doesn't have precise control over, ie. a spindle. If you just want 3 rotary axes to move in synch to each other, call them A, B and C and write the required G-code to move them the way you want. If you need to synchronize 3 rotary axes to some external motion, then EMC2 can't really do that directly right now with G-code. Underlying EMC2, however, is a much more general system called HAL (hardware abstraction layer). If you want to link 3 axes to move, as "electronic gearing" to something else, with specified ratios and offsets, this can be done in HAL. Jon |
#4
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Iggy... syncronizing spindle
Lloyd, I sent you an email yesterday, let me know if you did not get
it. i On 2011-02-06, Lloyd E. Sponenburgh lloydspinsidemindspring.com wrote: Ig, I've come up with a potential application that would require me to syncronize three rotary motions simultaneously. Similar to what you did with rigid tapping, but with a non-milling machine. However, it seems EMC^2 might be the tool to do it. Would you be willing to share the code/system configs you used to sync your spindle with Z for tapping? Thanks, LLoyd |
#5
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Iggy... syncronizing spindle
Jon Elson fired this volley in
: If you want to link 3 axes to move, as "electronic gearing" to something else, with specified ratios and offsets, this can be done in HAL. Yes, that would be it, Jon. I have to find some hollow encoders... the work must pass through the spindles. LLoyd |
#6
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Iggy... syncronizing spindle
"Lloyd E. Sponenburgh" wrote: Jon Elson fired this volley in : If you want to link 3 axes to move, as "electronic gearing" to something else, with specified ratios and offsets, this can be done in HAL. Yes, that would be it, Jon. I have to find some hollow encoders... the work must pass through the spindles. Hollow encoders are extremely common, your issue will be if you need a large bore, in which case your best bet will be a large timing belt pulley around the spindle and belt drive to your encoder. |
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