Build the Perfect Crank-Slider Mechanism with Onshape and Revolute Mates!

[@Kevin-ve7yi]

Thank you! I was only looking for mating tips, but you also taught me dozens of other things in just how to manage construction and keyboard shortcuts. Thanks again!

[@cademist]

You are very welcome-I think this type of project-oriented approach is great for learning "on the way".

[@SamScoot1]

This guy never misses, always great videos. Thanks!

[@cademist]

Glad you like them!

[@sidtaylor1161]

Clear and concise, thankyou

[@cademist]

glad you like it!

[@jeffmcclain]

Your construction techniques really appeal to me, because they focus a LOT on how to get back to extruding/projecting and drawing constrained parametric objects/parts from the raw orthographic (or even just ONE primary orthographic) projection of the mechanical drawing. I like that a LOT, as it gets back to describing a minimal amount of sketches necessary to create the drawing (possibly incomplete for recreating from scratch as some dimensions are in the extrude lengths/offsets, but still, very fast and quick). It also blows my mind to NOT let the physical placement in 3D space get too much in the way of your creation of a part, since you can easily CHANGE that in the assembly. For example, you construct the crank part on the OUTSIDE of the connecting rod, even though you plan to eventually go back and PLACE it on the inside. That is just a detail that is sometimes hard for me to not obsess about.

[@cademist]

Thank you for your kind words! I'm glad you appreciate my approach to construction techniques. I believe that focusing on the core geometry and using extrudes and projections efficiently is key to creating complex parts quickly. I agree that it's important not to get too caught up in the exact placement of parts in 3D space at the beginning. The flexibility to adjust their position later in the assembly environment is a great benefit of parametric modeling in the Onshape part studio. I'm happy to discuss specific techniques or answer any questions you may have about my workflow.

[@moaicommunity2485]

Thank you That was really Helpful

[@cademist]

Glad to hear it!

[@osmanl8003]

Thanks

[@cademist]

You are welcome!

[@שרון-ל6כ]

hey, thank you for this video. As part of my major at school, I am going to use it for my project. I mean that I will print this modeling and have to actually make it move for real, with a motor servo. How do you recommend me to do it? I have nowhere to put it

[@cademist]

You are welcome. You would need to model something: where the short linkage rotates, at that axis would be a nice spot. I would love to see the result!

[@peter_cuthbert]

Thanks for the video. Nice and clear and easy to follow what you were doing. Unfortunately life in Newbie World is never as simple as in Teacher World. Having followed your Mate choice and fitting exactly (Three cheers for the K key) my drawing ended up with a whole host of Mate errors. In every case the error message is 'Mate over-defines assembly'. There are only two implicit mates in each connection. Where possible I have trided to get the Z axis the same in both cases or facing each other if not. Do I need to go back and do some constraint killing in the Part Studio? The early 2024 version of OnS certainly provides auto constraints by the bucket load.

[@cademist]

Hi Peter, thanks for your comment. If you ran into seemingly unsolvable problems maybe you can share a link and I (or somebody else) can help?!

[@cisses2]

정말 감사합니다.

[@cademist]

천만에요

[@Clownmeati8]

+Edit+ two minutes in desining i realized where i screwed up, gotta make it 360deg rotate on the crank side. NP make it high enough it

[@cademist]

Great!

[@cademist]

Here is a link to the file: cad.onshape.com/documents/2f917a93090a98dd44db1966/w/20a9fc2ced5ca64bf3266b3e/e/a84bc190dbcfcb5610da42c4?renderMode=0&uiState=644674a4171042409c0df877