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Lab talk, the good, the bad, and the ugly
Dental-CAD
Rolend machine
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<blockquote data-quote="Matt Stratton" data-source="post: 56633" data-attributes="member: 3971"><p>Hi Scott,</p><p></p><p>Nice to meet you <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> We are actually just getting ramped up with Sum3D and have not done too much tweaking, outside of feeds/speeds/z-increments. To answer your questions:</p><p></p><p>1. Currently not using 'climb mill' at all...just bidirectional. </p><p></p><p>2. We use <SLOPE2> on our internal and external roughing passes. Do you see better results from a higher angle?</p><p></p><p>3. We use 0.1mm oversize for internal/external roughing, and .05mm for the crown roughing. So far, we haven't seen much chipping at all, minus the occasions when tools wear out, but you make a good point. Nothing more frustrating than seeing chipped units after a long build <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p>4. We are doing 0.05mm steps for 2mm, and then 0.1mm steps after that (<SPIRAL0/2/0.05><SPIRAL2/0/0.1>). Again, we've been getting great fits, so haven't been compelled to change this around too much. </p><p></p><p>Most of our effort is towards quicker mill times and better-looking full contour anatomy. I think the 0.3mm burr will help reduce manual finishing. For speed (hey Nicely <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" />),we are ~27min for full contour, and ~18min on substructures. This is without the sprue reduction. </p><p></p><p>We are going with pretty aggressive roughing at 0.7mm z-steps, then switching to 0.05mm steps for finishing. So far this has worked ok, but I think we may be killing the 2mm burr a bit quicker. I'm trying to do some burr wear tests, but it's expensive and takes a while. </p><p></p><p>-Matt</p></blockquote><p></p>
[QUOTE="Matt Stratton, post: 56633, member: 3971"] Hi Scott, Nice to meet you :) We are actually just getting ramped up with Sum3D and have not done too much tweaking, outside of feeds/speeds/z-increments. To answer your questions: 1. Currently not using 'climb mill' at all...just bidirectional. 2. We use <SLOPE2> on our internal and external roughing passes. Do you see better results from a higher angle? 3. We use 0.1mm oversize for internal/external roughing, and .05mm for the crown roughing. So far, we haven't seen much chipping at all, minus the occasions when tools wear out, but you make a good point. Nothing more frustrating than seeing chipped units after a long build :) 4. We are doing 0.05mm steps for 2mm, and then 0.1mm steps after that (<SPIRAL0/2/0.05><SPIRAL2/0/0.1>). Again, we've been getting great fits, so haven't been compelled to change this around too much. Most of our effort is towards quicker mill times and better-looking full contour anatomy. I think the 0.3mm burr will help reduce manual finishing. For speed (hey Nicely :)),we are ~27min for full contour, and ~18min on substructures. This is without the sprue reduction. We are going with pretty aggressive roughing at 0.7mm z-steps, then switching to 0.05mm steps for finishing. So far this has worked ok, but I think we may be killing the 2mm burr a bit quicker. I'm trying to do some burr wear tests, but it's expensive and takes a while. -Matt [/QUOTE]
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Lab talk, the good, the bad, and the ugly
Dental-CAD
Rolend machine
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