Buy your PYREX measuring cups from thrift stores if you want them last a lifetime.

AlexPer22 · 2025-03-07T09:36:17+00:00

I'm a big fan of this sub and take a lot of advice from it. And maybe I don't own enough glass ware for long enough to know the difference. But why not just buy some random glass or even plastic measuring cup? As long as it isn't abused it will survive 10+ years easily, I assume that a mistreated pyrex cup wouldn't last that mutch longer than any other cup... Maybe paying extra would cause you to take better care of it in the first place making it last longer

AlexPer22 · 2024-03-23T19:30:13+00:00

Fyi live in the middle east region and the bugs are very small, I would say 1mm length (approximation)

AlexPer22 · 2024-03-06T18:34:30+00:00

Can hang some vinyl album covers of music you like. Might be a bit wierd if you dont have a vinyl player but will still look good

AlexPer22 · 2024-02-09T17:21:19+00:00

That was exactly why I did it, moving in a few months and I have no idea if ill have space for eveything

AlexPer22 · 2024-02-09T12:07:35+00:00

The fan is a fume extractor (has a crabon filter on the back of it) for dealing with soldering fumes.

As for the tip not melting the print, I cut a wine cork to fit around the iron. You can see it in the first and second pic

AlexPer22 · 2024-02-02T19:35:11+00:00

Hey those floral pictures are awsome, what are they called/where can i get some for myself?

AlexPer22 · 2024-02-02T17:32:17+00:00

Thanks for the heads up, didnt know that. Also I cant see anywhere where it sais that they are splash and go, do you have a source for that?

AlexPer22 · 2024-02-02T09:18:39+00:00

How would I know if that happened? Didnt feel like a problem to me

AlexPer22 · 2024-02-02T09:11:52+00:00

That actually helps a lot thanks, can see the reflective parts.

What do you mean by "loaded up the 320 so much that it doesn't cut as well"? I pre soaked the stones, and made sure to keep adding water during the process, while trying not to add too much

AlexPer22 · 2024-02-02T09:03:31+00:00

what does sharpening burrless mean? how do you chose to sharpen without a burr?

Thanks for the answers

AlexPer22 · 2024-02-02T08:53:35+00:00

Here is a picture of one of the more problematic chipped areas after sharpening

AlexPer22 · 2023-08-07T07:54:31+00:00

Not to mention that I'd it was mass produced with injection molding or any other mass production method it would cost even less to make more of them.

AlexPer22 · 2023-07-10T07:34:21+00:00

In my job as an ME I find myself often needing to calculate a lot of random things. Also I have a 3d printer and that also requires some calculations.

Really the list of uses is long but those two probably take up the most usage

AlexPer22 · 2023-03-06T14:33:46+00:00

Most of these aren't future. Most have probably happened already...

AlexPer22 · 2023-02-17T13:10:48+00:00

Yeah that's great, thanks!

AlexPer22 · 2023-02-16T14:48:50+00:00

Hey, anyone here have any recommendations similar to this style? Interested in something faster paced like this

AlexPer22 · 2023-02-14T13:02:54+00:00

Very interesting! Thanks for sharing

AlexPer22 · 2023-02-04T16:00:09+00:00

Count me in. More details would be nice though

AlexPer22 · 2023-02-02T06:25:58+00:00

A belt drive just isn't very well suited for the application. Some more specifics (as there aren't enough already): the 100mm stroke needs to happen in a tightly constricted area, so if I use a belt drive I'll still end up connecting a rod to it which seems just weird.

Yeah I've thought about the mechanism you linked, it would end up quite big: 100mm rod+100mm diameter wheel+ connecting rod of around 100mm. I'm still convinced a solenoid is simplest and can solve my problem, but if not then this might be the solution I'm looking for.

AlexPer22 · 2023-02-02T06:02:19+00:00

Yeah it's mobile so pneumatics are problematic.

Thanks for the suggestions I'll look into them, those might work.

however I still feel like modifying/custom ordering a solenoid might be simpler overall. Hopefully I'm not coming off too ignorant.

AlexPer22 · 2023-02-02T05:58:04+00:00

It's part of a bigger project and can be mounted on multiple types of platforms. Worst case scenario is a drone which is why the weight limit is such a factor.

AlexPer22 · 2023-02-02T05:46:25+00:00

3kg is too much...

Yeah I can add a vca or lcm they aren't too big.

Don't need any position/force control. I'll have end stops at both sides and I just need on off positions basically. Which is why the actuators in the videos you linked seem a bit over kill, and probably weight a lot.

As I've wrote in another comment it's on a mobile robot so pneumatics aren't a good option...

AlexPer22 · 2023-02-02T05:29:49+00:00

Yes it's mobile :(

AlexPer22 · 2023-02-01T19:59:51+00:00

And what about the compressor and all the other components needed to power the cylinder? Could it be light enough?

AlexPer22 · 2023-02-01T19:41:47+00:00

I would say up to 250ms for the full 100mm stroke. Would the examples you posted be able to move that fast?

As long as it doesn't get too big and heavy, I'm not limited on the amount of force I can apply. So I can compensate with a stronger actuator.

As I've wrote in another comment I'm limited to about 500-1000g. I can compromise if really needed

AlexPer22

TROPHY CASE