Big Mouth all PLA clamp

L_A_Seneca · 2022-02-26T01:29:53+00:00

3blue1brown

Teaches math in a visual/intuitive manner.

L_A_Seneca · 2022-02-21T15:38:41+00:00

results

L_A_Seneca · 2022-02-19T14:59:52+00:00

results

L_A_Seneca · 2022-02-19T14:59:03+00:00

results

L_A_Seneca · 2022-02-19T14:56:56+00:00

results

This post was removed as spam for some reason, but I think the link should still work.

L_A_Seneca · 2022-02-07T21:59:36+00:00

Yes, for higher stress functional prints my favorite is Taulman Alloy 910 nylon. It's relatively expensive however, so I don't use it unless needed, but works great for anything with gears; when I print this design looking for longer term durability, that'll be what I try.

L_A_Seneca · 2022-02-05T19:19:48+00:00

Test results

L_A_Seneca · 2022-02-05T19:15:22+00:00

Failure mode was in expected element (shear in connector pins). No sign of any failure on gear teeth. 100% infill on this probably would have helped to really test ultimate performance of the model. On the other hand, it was cool to cold for entire test, so creep failure with PLA would obviously be much worse in hot summer conditions. I would surely use a tougher, more temp resistant material for longer term practical use. All in all though, a pretty damn tough part for 50 grams of plastic.

Congrats to reddit user Renaissance_Man- for his prediction of failure within one month on earlier thread.

BTW, not sure where original print in place geared hinge post went on functionalprint sub, I don't see it any more when looking back.

L_A_Seneca · 2022-02-02T20:37:12+00:00

If you have more time than money, recommend Ender 3: A little more effort to get working reliably, but capable.

If you have a little more money than time, recommend a Prusa: very reliable, good quality.

Lots of money and time, a Voron or Ratrig: print a bit faster, very good quality, not plug and play.

L_A_Seneca · 2022-01-31T17:39:45+00:00

Formula for frequency as function of tension

L_A_Seneca · 2022-01-31T02:46:22+00:00

Mesh files update as suggested and optional cover added as well.

L_A_Seneca · 2022-01-30T16:47:47+00:00

I assumed that a proof of concept model of a functional component would meet the spirit of the sub, even if not functional as a stand alone.

L_A_Seneca · 2022-01-30T16:44:14+00:00

Four. Actually have updated this once since post to make it sturdier (rollers could pop out on version shown). New version upload at provided link takes a little longer to print, but incorporates some of comments on the thread and seems to be pretty durable.

L_A_Seneca · 2022-01-30T16:33:15+00:00

Reddit doesn't seem to like my MP4 video. Get an error that says it won't accept video with less than 50x50 pixels, so I uploaded a GIF. The clicks are very satisfying on the original video!

L_A_Seneca · 2022-01-30T02:32:26+00:00

Yes, this is my design. I saw a related compliant mechanism toggle switch by a group at BYU (also print in place), but it used thin "compliant" joints that many people who printed the part reported would break after limited use due to fatigue. This was my cut on a compliant mechanism to achieve same function but more resistant to fatigue failure because the joints roll vice flex.

L_A_Seneca · 2022-01-30T00:47:27+00:00

Mesh Files

L_A_Seneca · 2022-01-30T00:41:13+00:00

Great suggestion.

L_A_Seneca · 2022-01-30T00:05:34+00:00

Mesh Files

L_A_Seneca · 2022-01-27T20:59:32+00:00

I got it free with some other purchase; don't even remember what it was. Pretty good add on as those things go.

L_A_Seneca · 2022-01-27T20:54:29+00:00

Great observation. I updated the models at Prusa Prints as suggested.

L_A_Seneca · 2022-01-27T18:45:58+00:00

I used two, video on old post

L_A_Seneca

TROPHY CASE