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Lab talk, the good, the bad, and the ugly
All Porcelain-Press
E-Max cad cost vs Pressing cost
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<blockquote data-quote="BobCDT" data-source="post: 116907" data-attributes="member: 3119"><p>Hi Charles,</p><p>Milling may be or generally is more expensive than pressing . However, I don't think cost is everything when discussing this topic.</p><p>We are milling Lithium disilicate but have not yet optimized mill stratergies. Our current mill strategy is about 30 minutes a unit in the 450i pre optimized. That said, we run two CAM shifts per day and I don't think I'm overstating that we could do 35-40 units a day, possibly more. Blocks are $32, tools are likely $3-4. Scan, design, CAM and loading the mill is 10 minutes. Let's say the 10 minutes is worth about $4. </p><p>Total cost not including mill time is about $46. The 450i plus CAM software runs about $70 a day over 5 years based on 20 days a month. So my best guesstimate would be a cost of about $48 for a milled unit. </p><p></p><p>If you want to compare a milled blue block cost to milled wax and pressed, I believe the pressed will come out to be less expensive. The exact number is very tough to come up with because I'm not up on labor costs. For instance, a one man show, the pressing is quite expensive as the owner is doing all of this lower level work. In this situation, the owner could probably do a complete unit of porcelain in the time it takes to process a couple of rings. The unit of porcelain could be worth $100. If you have a lower level staff person doing the wax to glass processing pressing is less expensive than milling.</p><p></p><p>When comparing hand waxing and pressing to milling I believe the costs are close provided you spend less than $22-25 for the die spacer, and wax up.</p><p></p><p>I know the thread is about cost comparison of pressing vs. milling. But, there are pros and cons to each. I really don't think there is a clear cut best solution. Real world, it's great to be able to offer both.</p><p>Go to go. I'll post more details later.</p><p>Everyone have a great weekend!</p></blockquote><p></p>
[QUOTE="BobCDT, post: 116907, member: 3119"] Hi Charles, Milling may be or generally is more expensive than pressing . However, I don't think cost is everything when discussing this topic. We are milling Lithium disilicate but have not yet optimized mill stratergies. Our current mill strategy is about 30 minutes a unit in the 450i pre optimized. That said, we run two CAM shifts per day and I don't think I'm overstating that we could do 35-40 units a day, possibly more. Blocks are $32, tools are likely $3-4. Scan, design, CAM and loading the mill is 10 minutes. Let's say the 10 minutes is worth about $4. Total cost not including mill time is about $46. The 450i plus CAM software runs about $70 a day over 5 years based on 20 days a month. So my best guesstimate would be a cost of about $48 for a milled unit. If you want to compare a milled blue block cost to milled wax and pressed, I believe the pressed will come out to be less expensive. The exact number is very tough to come up with because I'm not up on labor costs. For instance, a one man show, the pressing is quite expensive as the owner is doing all of this lower level work. In this situation, the owner could probably do a complete unit of porcelain in the time it takes to process a couple of rings. The unit of porcelain could be worth $100. If you have a lower level staff person doing the wax to glass processing pressing is less expensive than milling. When comparing hand waxing and pressing to milling I believe the costs are close provided you spend less than $22-25 for the die spacer, and wax up. I know the thread is about cost comparison of pressing vs. milling. But, there are pros and cons to each. I really don't think there is a clear cut best solution. Real world, it's great to be able to offer both. Go to go. I'll post more details later. Everyone have a great weekend! [/QUOTE]
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Lab talk, the good, the bad, and the ugly
All Porcelain-Press
E-Max cad cost vs Pressing cost
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