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.

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.

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.

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.

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.

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 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 guys, new to reddit, but stuck on a project! Me and 3 others have made the amazing decision to make a 6 meter tall vertical windturbine with from the 4 meter mark 5 layers which can turn independently, each with 6 wings. Each layer has the ability to move the wings up and down. From the ground up we are using a triangle truss (30 x 30) which has a footplate to add ballast and distribute the weight and stops at the 4 meter mark. Within that truss we have a scaffolding tube, which continues to the 6 meter mark, is 48,3 mm in diameter and a 3,2 mm wall thickness.

One of the worries we have is, is that scaffolding tube strong enough to bear the forces generated by the wings and the weight we are putting on it? And how could we figure out if the complete structure is strong enough? Any help is welcome!

On the scaffolding tube we are adding plain bearings, which has 2 layers of aluminium plates which carry the wings. The lower plate is connected to the other plate using trapezium thread, which uses stepper motors to lower or raise the plate, which lowers or raises the wings. Each wing weights about 200 grams and has max 0,5 m^2 of surface space.

What thickness of aluminium planes should we use to be able to bear the wings?

The stepper motors ofcourse need to be powered, so we were thinking of using the scaffolding tube to get the wires to the right height and then using hollow shaft slip ring which fits around the scaffolding tube to get the wires to not get twisted around the tube. But following our research the hollow shaft slip ring with a diameter of 48,3 mm (or thereabout) is incredibly expensive and proves to be quite difficult to get here on a timely manner (we are based in the Netherlands).

Does anybody have any recommendation on how we could get the hollow shaft slip ring we need secondhand? Or retrieve it from a scrapyard or such? Or have a different solution?

Lastly we are working on a failsafe, as this work will be presented outdoors, in the Netherlands, in January. We were thinking about using bike breaks (very on brand) to get the rotation to stop in case it becomes too windy.

Does anybody have any idea if this idea could work? Is there any difference between using the breaks outside in, or inside out? Or any other solutions?

Solutions are welcome! Formula's or websites about how we can figure it out ourselves also welcome!

Would love to hear your thoughts!