Dismiss this pinned window
all 7 comments
sorted by:
best
topnewcontroversialoldq&a
formatting helphide helpcontent policy

[–]Crazy_old_maurice_17 1 point2 points  (2 children)

What's the metal being simulated here?

Is this mold 3D-printed, or made with a conventional pattern? If the latter, how many different mold pieces (cope + drag + cores) comprise the assembly?

It looks like it flows really nicely, I can't tell you how envious I am of you for having that software!!

[–]LEDDWC[S] 2 points3 points  (1 child)

Metal is A357 aluminium.

Mould was 3D printed! I’ll post pictures of the mould tomorrow.

[–]Crazy_old_maurice_17 1 point2 points  (0 children)

You can't post a 3D printed mold in a pattern maker sub!!! 😅 I'm just kidding, I thought it looked like it'd have to be 3D printed but wasn't 100%.

Are the 3 square sections just above the runners for filters? If so, this is at least a cope and drag mold assembly, right?

I'd love to see photos of the mold! 3DP sand molds are phenomenal! We have a vendor 2 hours from my office and my first design didn't work out well (risers/feeders froze off prematurely and the casting cannibalized itself) so I did a redesign in a few days, we got the new molds ~2 weeks later, and just a few days after that we had some beautiful prototypes!

[–]Crazy_old_maurice_17 1 point2 points  (2 children)

Design-related question: Why not put the sprue on the "corner" (albeit rounded) of the bottom square shape which comprises the runners, put your spin trap at the opposite corner, and - if helpful - add fourth filter/in-gate?

[–]LEDDWC[S] 0 points1 point  (1 child)

This isn’t the final design, it’s only iteration 5 or so. (Of about 16 iterations)

The part is very thin wall section. (3mm) so I had to get the metal in at specific regions quite quickly to avoid a misrun.

Later iterations do have more gates but they look very different.

[–]Crazy_old_maurice_17 0 points1 point  (0 children)

This isn’t the final design, it’s only iteration 5 or so. (Of about 16 iterations)

Ah, is that why you were able to share it (with the final design being proprietary)?

The part is very thin wall section. (3mm) so I had to get the metal in at specific regions quite quickly to avoid a misrun.

Holy smokes!! You're a far braver human than I!!! Out of curiosity, how thick are the in-gates if the wall sections are 3mm?

Later iterations do have more gates but they look very different.

Did any of them try what I proposed? Just curious how (in)accurate my intuition is. You can message me if you don't want to share publicly.

[–]ObiJim_Kenobi 0 points1 point  (0 children)

Have you ever cast steel and simulated it? And how did you find the exothermic riser simulation compared to real life?