Yishin hello Am I right to think you want to be able to turn spindle to any degree? like G01 C35.678 ?
In sink Edm we do not spin the tool but use C axis on end of Z to orient tool ( electrode) to workpiece (mold cavity). Sometimes... we do use as spindle, but for sink edm it is slow compared to milling machine. IIRC the highest speeds are near 100rpm, even with tiny diameter tools ( <.01 mm dia ), At higher rpm's the spark does not form correctly. Your work is always interesting, thank you. TomP On 12/22/2015 06:26 AM, Yishin Li wrote: > On Tue, Dec 22, 2015 at 1:59 PM, Chris Morley <[email protected]> > wrote: > >> >>> To: [email protected] >>> From: [email protected] >>> Date: Tue, 22 Dec 2015 06:11:23 +0200 >>> Subject: Re: [Emc-developers] jerk limited trajectory >>> >>> 12/17/2015 05:40 PM, Viesturs Lācis rašė: >>> ... >>>> IIRC it has not been implemented in LinuxCNC, because it would not >>>> work for spindle-synchronised moves, but I might be totally wrong on >>>> that :)) >>>> >>>> >>>> Viesturs >>> I see jerk limitation as very nice and important feature to have. >>> And I would go with a workaround like disabling jerk limitation only >>> when doing spindle-synchronised move (or whatever else rarely used type >>> of move) to let it work for the mainstream. >>> >>> BTW, limit4 would be great too :) >>> >> That version of jerk-limited just didn't quite work right with >> spindle-synch. >> IIRC the person doing it didn't need spindle-synch and got little help - >> lost interest. >> Not that i blame him - it looks very difficult! >> >> Our Jerk limitation implementation is on-going at: > https://github.com/araisrobo/machinekit/tree/rpi2-spi > > It is with spindle synchronizing for a wood lathe machine: > https://youtu.be/_3v9xDF-2nY > > We are trying a new approach to apply trajectory planning for spindle, i.e. > treat spindle like an axis. Still lots of work to be done. > > -Yishin > ------------------------------------------------------------------------------ > _______________________________________________ > Emc-developers mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-developers ------------------------------------------------------------------------------ _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
