3D Printed Single Cavity 45 Caliber Dimensionally Corrected Bullet Mold
Channel: TIM MONTANO
Date: 2021-10-31

This is the last of the bullet casting that was done with my most recent 3D Printed Single Cavity 45 Caliber bullet molds.

More camera problems and memory shortages kept me from video recording every single cast with each of the two latest dimensionally corrected 45 Caliber bullet molds.

I was able to capture enough video footage to prove that we can indeed cast bullets out of 3D printed Bullet Molds; provided that specific protocols are adhered to.

The Siraya Tech Ultra White High Heat resistant print resin that I mixed additional Porcelain powder into REALLY DID seemed to be up to the task for this application.   I just had to figure out the best way to go about printing it and casting with it.

To be sure,  there will be more tweaks to my printing procedure and to my casting procedure in order to increase the durability of the molds so as to be able to cast more than just fifteen bullets before the extreme heat of the molten lead takes it's toll on the bullet molds.

I'm at a place now where I can state with complete confidence that the concept has now been proven.    We really can cast bullets out of 3D printed bullet molds using molten lead as our casting medium.   What's left to do now is to continue to increase the durability of the 3D printed molds.

My next batch of 3D printed bullet molds will be printed using the print calculations I alluded to in my previous post.    I'm hoping that those print calculations will help me to mitigate even the faintest Printed Layer-Lines that I have been getting in my finished prints up to now.

Also;   I am in the process of coming up with a way of keeping thoroughly mixed throughout the print process,   the additional Porcelain Powder I've added to the factory formulation of the Siraya Tech resin.

This is no easy task but, I believe that it's the next phase in optimizing the heat resistance of this particular resin.

With each 3D print session,   I've been left with a fair amount of residual Porcelain Powder that ends up unused at the bottom of my resin vat.

This tells me that if I can get a more thorough and continuous mix of the resin from the beginning to the end of the print process,   it should enhance even further,   the heat resistance of the Siraya Tech Ultra White Resin; and by extension, it should prolong the life of the 3D printed bullet molds.

I'll be uploading one last video to close out this present 3D Printed bullet mold Casting Session using this latest batch of bullet molds.  

In this last uploaded video I will include some closeup photos of the bullets as they came out of the mold; followed by some measurements and some bullet weights; as well as some before-and-after sizing and powder coating.

I have also had a request of a screenshot of my 3D printer's print settings for the Siraya Tech Resin I've been working with.

Stay tuned.  I hope that you'll find it informative.