{"id":25,"date":"2014-05-08T20:27:24","date_gmt":"2014-05-08T20:27:24","guid":{"rendered":"http:\/\/userblogs.ganoksin.com\/allanstraton\/?p=25"},"modified":"2014-05-08T20:34:15","modified_gmt":"2014-05-08T20:34:15","slug":"problem-solved-casting-resin-3d-printing-designs","status":"publish","type":"post","link":"https:\/\/userblogs.ganoksin.com\/allanstraton\/2014\/05\/08\/problem-solved-casting-resin-3d-printing-designs\/","title":{"rendered":"Problem (NOT) solved when casting resin 3D printing designs."},"content":{"rendered":"

Hi Friends and colleagues.<\/p>\n

CAN ANYONE GIVE ME SOME ADVICE, AS TO ME THE RESIN PRINTERS ARE A WASTE OF TIME?<\/strong><\/p>\n

My email address is info@thehouseofstratton.co.nz<\/strong><\/p>\n

Any suggestions will be appreciated. “Apart from the hammer treatment.”<\/p>\n

I posted the bottom post last month when I thought the problems with the envision resin printer had been solved but I am sorry to say it has not been solved when casting resin through the lost wax casting.<\/p>\n

I have to add a note about resin casting with precious metals.<\/p>\n

I have tried everything and it is still not satisfactory.<\/p>\n

I thought the problem had been solved but it hasn’t.<\/p>\n

Casting resin is difficult and only 50% \u00a0work out.<\/p>\n

I have also tried resin patterns straight into VLT rubber and find that the rubber does not cure near the pattern. I have even extended the cure time of the resin and spray coated it in vegetable oil and dried it thoroughly but the rubber is not satisfactory<\/strong>.<\/p>\n

MY ADVICE until I can cast resin for myself is that they are a waste of money and time for the jewellery industry. After what I have experienced I would never buy a resin printer for casting resin and I don’t think the manufacturers tell the truth<\/strong>.<\/p>\n

I was advised to air blow the cans out before I pour the metal into the mould but that did not work. Maybe it would get rid of the residue if you only had one ring in the can but I cast 200 items at a time when I am casting\u00a0with\u00a0each pour. I am talking one to two kg pours at a time.<\/strong><\/p>\n

My recommendation is that you invest in a \u00a03D \u00a0Wax printer for precious metal casting or get it printed by someone who has\u00a0a 3D wax printer.<\/strong><\/p>\n

Allan<\/p>\n

Hi
\nMy name is Allan Stratton.<\/p>\n

My web address is\u00a0www.thehouseofstratton.co.nz<\/a><\/p>\n

Today I would like to write about 3D resin printing and troubles experienced when casting precious metals.<\/p>\n

I have always wondered why when I cast resin 3D printed designs, I have trouble with the castings them.<\/p>\n

I have used the special investment.
\nI have used the special burn out cycle.
\nI have had to fry patterns under light for an hours to cure them.<\/p>\n

Nothing seemed to work.<\/p>\n

If you used normal investment the resin 3D pattern expands and seems to break the investment.<\/p>\n

I gave the resin 3D pattern a long burnout cycle as specified. It seemed to leave soot in the investment mould which created holes in the castings. Porosity.<\/p>\n

I experimented and placed some resin 3D patterns in a sealed controlled crucible and left it in the oven through a burnout cycle to see what happens and if residue was left there.<\/p>\n

There was residue and it was a black and white mixture.<\/p>\n

I found that everyone had this problem in NZ so a friend of mine with an evision tech resin 3D printer rang a scientist from envision in Germany.<\/p>\n