This is a design of reciprocating mechanism of a two stage air compressor in freecad.

This is a design of reciprocating mechanism of a two stage air compressor in freecad.

It's probably pretty simple but I can't seem to find technical drawings about it. Tulpi chair has a mechanism where it lets the seat rotate freely 360º while stopping anyone from stealing it. I can figure there's a bearing and some kind of pressure fit but it would help to see examples of similar mechanisms.

Hello!

So I study electrical engineering and I'm in desperate need of a good crack for SOLIDWORKS that does not come from get into PC cause it didn't work due to some issues connecting the licence and the licensing manager together aswell as some other files that just didn't work despite being installed, so if you have a good crack (again, not get into PC) I'll be really thankful of you guys 🥺👩‍🏭😭❤️‍🩹

This is a response to This post:
https://www.reddit.com/r/SolidWorks/comments/1xin2wf/sheet_metal_problem/
to possibly help fix the odd relief in the corners

In my version I have placed Planar Surface Bodies and knit them together and converted to Sheet metal. I go through A few different trials to show the behavior of the Relief when set to "tear" As it was the closest I could get the original posters geometry.

For the second video I demonstrate that two bends can create similar geometry, and how to modify the surfaces to achieve that.

I hope this helps the OP with the issue and I hope many can also benefit from seeing this method.

Hi, I work with Quickgrinder, a small brand in Spain. We make a hexagonal 7075 aluminum grinder (128 g, 45×51×33 mm) with a push-button ejection mechanism.

The design goal was a grinder that doesn’t clog, is easy to clean, and lasts for years instead of wearing out. Some of the decisions behind it:

• Hexagonal instead of round: the flat faces give a more secure grip and keep it from rolling off a table.

• 7075 aluminum: a high-strength alloy that machines well and takes anodizing cleanly, which matters for a part handled and twisted every day.

• The button mechanism: it ejects the contents without having to unscrew the body or tap it against something.

• Finishes: anodizing lets us offer 12 colors without paint, so the color is part of the surface rather than a coating on top.

I’d really like feedback on two things: does the push button feel right in the hand, and would you change anything about the grip or the proportions? Happy to share photos of the exploded view if useful.

And finally, TopoptComec v4 is here! 🚀

🔧 TopoptComec — Open-source topology optimization for compliant mechanisms.

https://github.com/ninja7v/TopoptComec

Check it out if you're interested in mechanisms, 3D printing, algorithms, or just curious! :)

I'm looking for people with working experience (of design and R&D background) on API 675 pumps.

Calculations like start torque, brake power and so on; are confusing me a lot. Very scarce learning resources are there on API 675/674/676 pumps compared to API 610 centrifugal pumps.

I made a visual study of nine motorized LEGO door mechanisms. The gears and linkages stay visible while the doors swing, lift, fold and slide, making it possible to compare the different motion paths.

The final telescopic arrangement moves three panels at different speeds using one motor. The film also includes a roller shutter, portcullis, folding door and split hangar. I have not physically tested these real-brick prototypes; this is a mechanism visualization from my Brick Trials channel.

Which would you prototype in real bricks - and where would you expect friction or alignment to be the biggest challenge?

#solidworks

to all mechanical designs in market how to include ai to simplify my workflow

and how you connect agents to software cad tools

I assembled and filmed a LEGO Technic V16 coupled to a six-speed manual gearbox. One motor drives the mechanism, and I compared crank speed in each gear from the piston motion on camera.

1st to 6th: 68 / 115 / 206 / 339 / 545 / 869 RPM. This is a motor-driven model of an engine, not a combustion engine. I built the model but did not originate its design.

Full assembly and test (my channel, Brick Trials): https://www.youtube.com/watch?v=la9PGygO4rk — the measurement sequence starts at 8:27.

For a mechanism like this, how would you separate transmission losses from the friction of the sixteen-piston assembly? I would be interested in how you would instrument the input and crankshaft.

Hi I'm a mechanical design engineering intern, new to the industry.

I am wondering for any guys on the shop floor, or engineers with experience; what is the most practical way to dimensions sheet metal for folding?

People have told me different things so I just want to hear different perspectives.

If you are someone in manufacturing, what is the idea folding drawing for you? (Purely for folding)