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Lab talk, the good, the bad, and the ugly
Dental-CAM
Imes - Icore 140i
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<blockquote data-quote="DMC" data-source="post: 107016" data-attributes="member: 430"><p>KaVo spindle is pretty weak, and still cuts Ti pretty easily. </p><p></p><p>Ti is really not that hard to cut. 350watt will work with no problems. </p><p></p><p>Bad vibrations and harmonics will be the killer for spindle bearings and tool-life. A very strong fixture made of tool-steel and of a decent design would be more important than the spindle IMO. That and the over all frame design I put ahead of anything else. </p><p></p><p>Regardless of how excellent a mill is, I still think eMax will always be better pressed than milled, and much cheaper as well. So, why even try?</p><p></p><p>You could mill the pattern with wax in 1/3 the time and press....still would be cheaper. </p><p></p><p>You do not need 1000watt spindle to cut Ti. I know this for a fact. I cut with 4mm torus (Bull-nose) and spindle load never exceeds 350watt.</p><p>This is with a 1900mm/min feed during Roughing on my Haas. </p><p></p><p>I am buying another Haas this month BTW. We did have issues with harmonics early on, and changing CAM parameters and fixture design recently really helped.</p></blockquote><p></p>
[QUOTE="DMC, post: 107016, member: 430"] KaVo spindle is pretty weak, and still cuts Ti pretty easily. Ti is really not that hard to cut. 350watt will work with no problems. Bad vibrations and harmonics will be the killer for spindle bearings and tool-life. A very strong fixture made of tool-steel and of a decent design would be more important than the spindle IMO. That and the over all frame design I put ahead of anything else. Regardless of how excellent a mill is, I still think eMax will always be better pressed than milled, and much cheaper as well. So, why even try? You could mill the pattern with wax in 1/3 the time and press....still would be cheaper. You do not need 1000watt spindle to cut Ti. I know this for a fact. I cut with 4mm torus (Bull-nose) and spindle load never exceeds 350watt. This is with a 1900mm/min feed during Roughing on my Haas. I am buying another Haas this month BTW. We did have issues with harmonics early on, and changing CAM parameters and fixture design recently really helped. [/QUOTE]
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Lab talk, the good, the bad, and the ugly
Dental-CAM
Imes - Icore 140i
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