Javascript must be enabled in the security or content
settings of your browser for this site to work properly

To learn more about cookies search for HTTP cookie at wikipedia.com





Click here for information about DIGITALFIRE Corporation
  All | Last 10 | Next 10 | Reset

3D-Printed shell to cast working plaster jigger molds

The grey outer shell mold on the left was printed in two parts and glued together (at the shoulder). It's vertical split enables me to open it a little. The center model of the outside contour of the mug (on a two-step base) was made by casting the plaster inside another two-piece 3D-printed form I ... more

Friday 6th December 2019

The incredible utility of 3D printing master handle molds

These molds are 3D-printed from PLA filament. They are part of my 2019 year-long casting-jiggering project. A quick soaping, 164g water, 236g plaster and a fifteen minute set produced this plaster mold. It takes time to learn how to soap the masters properly to get optimum quality, but these molds ... more

Thursday 5th December 2019

Fusion 360, my choice for 3D modelling

Intimidation by the complexity of this type of software is the biggest obstacle you will face to learning 3D design (for 3D-printing). That being said, the new mission of AutoDesk, the leader in CAD software for 30 years, is to make it easy and universal! Fusion 360 has a lot of advantages. It is a ... more

Thursday 5th December 2019

Laguna B-Mix on Steroids: Wedge in some Plainsman Fire-Red!

Both pieces have a transparent glaze, G1947U. The Fire-Red (a blend of Plainsman A1/M2 and St. Rose Red) was mixed as a slurry, dewatered to plastic form and then wedged in to the B-Mix (left piece has 10%, the other 20%, the bar in front shows the pure material). The A1 supplies most of the ... more

Thursday 5th December 2019

Polish the plaster surface, not the 3D-printed shell-mold

This plaster model was just removed from the 3D-printed shell behind. It dropped out easily (after tapping it at-an-angle on the corners), this worked well despite the resolution lines on the surface. While I could have spent time sanding and smoothing the inside of the shell-mold, it is actually ... more

Thursday 5th December 2019

A 3D-printed spout greatly increases the utility of this casting mold

It was glued down using the casting slip itself (it stuck in seconds). About ten minutes after draining a fettling knife was run around the inside, then it detached easily. The overhung lip produced imparts structural strength, for drying and firing, to the thin walled piece. This spout has ... more

Sunday 1st December 2019

Cooling rate drastically affects the appearance of this glaze

This is G2934Y satin matte with Mason 6600 black stain. The piece on the left was fired using a slow-cool firing schedule (C6DHSC). The schedule for the one on the right turned the kiln off at 2100F (after a half hour drop-from-2200F-and-hold), then it free-fell. The slow cool gives the glaze on the ... more

Tuesday 26th November 2019

Why does transparently glazed terra cotta look better at cone 03 than 04?

Terra cotta bodies typically develop richer color at cone 03 and fire much stronger. Glazes melt better and thus micro-bubbles pass through easier, this produces better transparency and a more brilliant surface. Notice that crazing is beginning on the one of the left. But because of better ... more

Sunday 24th November 2019

White stain. Does it work?

This is G2934Y matte glaze base with opacifiers added. It has been applied to a dark-burning body to demonstrate the comparative degrees of opacity. The stain is Mason 6700 white. While it does not opacify nearly as well as tin or zircon, it does produce a smoother surface.

Sunday 24th November 2019

A gunmetal glaze I have wanted my whole life!

After 40+ years of making pottery I finally have a perfect gunmetal black. It has an incredible silky glaze. It does not cutlery mark. It does not craze on anything. It is easy to clean. This is G2934Y with 6% Mason 6600 black stain firing using the PLC6DS schedule. I had to tune it a bit, adding ... more

Sunday 24th November 2019

Contact Us:

Use the contact pages within or outside your account at Insight-Live.com


Test, Document, Learn, Repeat in your account at insight-live.com

Login to your online account

Chemistry plus physics. The on-line successor to desktop Insight. Get an account for as little as $15. It does so much more.

Conquer the Glaze Dragon With Digitalfire Reference info and software

Still available for Mac, PC, Linux

Interactive glaze chemistry calculations (legacy, no longer supported)


What people have said about digitalfire

• I found your site and spent a long time studying various parts of it. I intend to use it alot, and hence I probably purchase the software in due course.

• I have been working as research assistant for the design of continous type microwave dryer for ceramics. Thank you for the infomation provided.

• Your sight ROCKS.

• I have joined to millions of others who must absolutely love you and are so thankful to you - I just want you to really know that you have opened up a whole new world to me that I thought was insurmountable - The wealth of information on Digital Fire is most appreciated, and I hope you know that what you have done is really enormous and God sent to potters.

• Thanks a lot for this sea of knowledge.

• I'm only just beginning to learn about pottery and glazing. I have learned more from your website than anything I have read!

• Wow. Thanks. That is so great. I also thank you for making so much material available on your web site. You obviously care deeply about the craft and teaching others.


Click here to see all 191

What people have said about Insight-Live

• I have had your wonderful software for a long time. Do not know what I would do without it. Have close to 200 glazes on it that I have test tiles for. It is wonderful. Happy firing.

• Thanks Tony. You are offering a very valuable service to the potters.

• I am a production potter and I have been using your website for information, and I have made many improvements from articles posted on this site.

• You are a real gem, your work really help me a lot.

• I have everything hand written in my notes from my glaze void, but obviously, is not searchable. It's great what you've done.

• I'm glad I was of some small service. Your whole venture is a marvel. All the best as we go forward.

• Great software!


Click here to see all 125

DigitalFire Logo

Privacy Policy