# Significant price reduction on dense models

Excellent!! Model volume over bounding box volume is not the density of the model. It is the density of the print volume. In other words, if I print 8 solid cubes 1cm on a side, but put them 2cm apart, then even though they are solid the print density is 8*1cm^3/(4cm)^3 =0.125. Is that correct?
That is correct.
I was wondering when you'd get around to doing this. In an ideal scenario, where machines worked 100% of the time to specification, you can get away with doing volume calculations for quoting purposes. But it only takes a single failed build due to thin parts to wipe away all the savings that were made on materials by encouraging users to go thin. It also means you get away with higher recycling ratios, etc. Altogether a much more solid (excuse the pun) pricing model for SLS.
#3 crsdfr on 2010-06-23 23:11 (Reply)
Will this be made permenant if it is successfull?

It would certianly benifit me as a seller and a buyer if this could be extended (I would probably make another \$200+ order if it was). Would this be considdered?
Question 1: Could you provide a mathematical equation for the new pricing model, please? I find the English description hard to put into an Excell sheet.
Question 2: Will putting 3D puzzle pieces closer together in an STL always lower the price? Or at least remain the same?
Question 3: Will hollowing out 3D puzzle piece as much as possible always lower the price? Or at least remain the same?
Question 4: If the answer to question 3 is "yes", then why should I make an effort to make my puzzles more solid?

Thank you.

Oskar
#5 (Homepage) on 2010-07-05 17:21 (Reply)
Hi Andrew, if successful we will certainly consider to keep. But as with many of our introductions we first see what the community thinks as that helps us decide what to do next
When they say density they mean bounding box over volume. All you have to do to find the density of your model is multiply the volume by the space it takes up (I.e the bounding box). Here is a better way to state this:

To find the price of your part under the new model The first 20 cu cm are \$30, after that any more cu cm are half price. For example take a model that origionally cost \$150, subtract the first \$30 and then cut the remaining \$120 in half leaving you with the new cost of the model which is \$90. Essentially any model that is above \$30 in price will have a cost deduction as long as it complies with the density standards.

Hope this helps,
Andrew
#7 Anonymous on 2010-07-06 17:40 (Reply)
I don't want to wake any sleeping dogs, but has this been made permanent? It's well over July 22nd so I'm assuming this was a huge success and you decided to keep the pricing model?

If I'm reminding you that the price should go back to normal, then please wait until I make my next order I've been on holiday for most of the (actually, the entire) trial period.
#8 (Homepage) on 2010-07-31 22:08 (Reply)