Also on your Haas control, one of settings is the rigid tap reversal speed.I believe you can up that quite a bit to cut cycle time if you stick to rigid tapping.Ĭheck the speed and feed recommendations from PTD (I recall they published the most info of the drill mfgs).I think you might be a bit fast. But running work at proper feeds and speeds is the best way to cut clean holes and tap stainless steel most efficiently. You may want consider a Tapmatic tapping head if there are a bunch of holes in one part.thay are way faster than rigid tapping as you do not have the spindle decell, reversal and accell, and some can reverse at greater than spindle speed. Frank has T/C holders with an ER collet, but I would probably go with a Bilz style.you can change a tap in about two seconds. I presume you are running coolant on the drill cycle?ĭid you go with a tension / compression holder? I have to believe that they will increase tap life.take a look at the Tapmatic site in regards to rigid tapping and tap life. You are also running at about 95 sfm - I would probably run that at about 60 sfm on a cobalt drill and probably throw in a peck or two to insure that you are clearing the chips. I would guess the drill is packing with chips or just plain overloaded.10 in/min on a #16 (0.177") is really aggressive - 0.0049"/rev. I'd spot drill to get a starting point and your chamfer all in one, just match your drill point and spot drill angle if possilble to keep your drill life up. If you haven't got any of Frank's tool holders, you're spending too much money for what you're getting.his drill chucks are as good as any high dollar unit, and for a Cat40, they're almost free. Get a couple of Drill Chucks from Frank Mari (Maritool), bottom out your drill in the chuck, and you should be able to change out a drill in a couple of seconds and not reset your tool length. As I recall, you can change a value on your "settings" page and change the tap reversal speed very finitely want to do this. Maybe even consider a Tapmatic as you can tap faster with no spindle reversal and the tooling block I believe is readily available for Haas machines.although a VF3-SS machine should rigid tap really well, vs lets say a gear box model. I'd consider going to a tension/compression style as you should get better tap life (at least according to Tapmatic), as long as thread depth is not super critical. I'd go with a Bilz style tap holder for quick change out - you will not have to reset your tool length every time you change your tap - as long as you are using the same brand of tap. As I recall, 20 sfm is the recommended speed, but you may be able to bump it a bit and still get good tap life. You should be able to get away with a good coolant at a stronger concentration (maybe ~12%?), and not have any contamination issues, but see what your tap supplier has to say. We use Castrol Moly Dee instead of coolant, but with that many holes, and possible contamination issues, I'd talk to their tech service and see if they can recommend a coolant. The first 3 drills are harmony focused, and the last 3 drills are improvisation focused.Chazsani, We've had really good luck with #10-24 Balax Threadfloers (thread formers) in 316ss. Each drill comes with an associated video which are listed below. This PDF practice plan contains 6 drills and exercises to master rootless voicings. Rootless Voicings Practice Planner.pdf (1.9 MB) The exercises I have included in this plan are ones that I revisit frequently and I’m sure they will be a great asset for all who want to improve their understanding of jazz harmony. It’s a journey that we take over many years. I know first hand how much work is involved in learning these voicings. The feedback I receive from students on these lessons has been great and so I’m excited for launching this practice plan series. Most of these lessons were inspired by my own influences, mainly Bill Evans, and his unique use of the rootless voicings with tensions and colours. Our rootless voicings course is a core part of our jazz piano syllabus here at PianoGroove. Practice Plan For Rootless Voicings Course
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