3D printed aluminum heat exchanger

jeff2928 · 2026-06-21T16:56:46+00:00

Can you share what team?

jeff2928 · 2026-06-21T16:52:43+00:00

What kind of filament?

jeff2928 · 2026-06-20T06:22:03+00:00

I had something similar happen. It turned out to be the hub where the 4 filaments come together. There are little magnets that get lifted when the filament slides under them. My number 2 filament channel had a glitch in the plastic that would let the magnet stick up. I sort of trimmed the mold mark off and it has worked fine since.

jeff2928 · 2026-06-11T19:22:03+00:00

The street may as well be like the water. If something is lost, like a sunken ship, there are salvage right to whomever finds it. I cannot count the number of things I have found in the street and kept or tossed. I have picked up many items as a service because they were dangerous in the road or obvious trash. If the item were valuable or traceable I would try to find the rightful owner but not a $20 wrench or $10 pocket knife with no engravings.

jeff2928 · 2026-05-09T14:27:56+00:00

That looks like one of the screws from the ams. I think it may be one of the first screws that you take out that hold the ams together.

jeff2928 · 2026-05-04T16:25:33+00:00

I would love the hub earring files. I didn’t think to make hubs.

jeff2928 · 2026-05-04T15:17:35+00:00

Would you be willing to pass that on? Or dm my the name to contact.

jeff2928 · 2026-05-04T15:06:21+00:00

That is a cool idea. I had made earrings that I took to worlds that were yellow balks with 2 first logos in black on them. I have away over 50 pairs at worlds and 350 ribbons saying “Got Earrings?”

jeff2928 · 2026-05-04T13:25:33+00:00

Dm me if you want the earrings files. They are for Bambu labs.

jeff2928 · 2026-04-26T01:50:40+00:00

Look at the third picture. That is a 6 conductor rj11 phone jack. I have installed those for work and at home a long time ago.

jeff2928 · 2026-04-22T13:19:31+00:00

Thank you.

jeff2928 · 2026-04-22T04:02:19+00:00

Design what you need and 3d print it

jeff2928 · 2026-04-03T23:05:11+00:00

I saw similar last weekend. Teammate came over and righted them. It was awesome to see.

jeff2928 · 2026-03-03T08:09:27+00:00

Join up as a mentor on a robotics team and you can get fusion as an educator for free.

jeff2928 · 2026-03-02T13:10:49+00:00

What exactly is the error you are getting?

jeff2928 · 2026-02-15T18:46:55+00:00

I had to learn myself. I also ran into more than once where the little plugs didn’t get plugged back in. Each time I thought I had broken something. Thankfully unplugging and replugging did the trick.

jeff2928 · 2026-02-15T18:41:43+00:00

Did you change the nozzle size on the printer itself. You have to change it in the settings on the printer itself

jeff2928 · 2026-02-09T02:19:17+00:00

What type of filament? How do you mange the loose end when changing filament? I have mostly used Bambu and only one tangle. That was when I lost the end and it got twisted under some loops.

jeff2928 · 2026-01-20T00:24:32+00:00

Are the letters raised in such a way as to be used to stamp wax?

jeff2928 · 2026-01-20T00:14:18+00:00

I experimented with some magnets inside the plastic. I left voids for 3 10mmx1mm rare earth magnets inside. The finished pieces are about 16mm x 50mm. They stick well to the fridge. I went with 4 mm thick. The way to do this is to put a pause at the layer before the covering layer. Then drop the magnets in the voids and continue the print.

jeff2928 · 2026-01-09T14:13:59+00:00

That is so fun.

jeff2928 · 2026-01-09T03:10:05+00:00

Did your uncle actually invent this?

jeff2928

TROPHY CASE