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Agreed

Hi Sumi, I’m glad you found the video helpful. To be clear, the extruded 3D bodies don’t move with the linkage (I sure wish they did and I hope they add that functionality) but I think you understand that. If I understand correctly, you’re asking about the 2D lines that I used to extrude into 3d bodies. So not the bones (the central lines of the linkage) but the 2D lines surrounding them. So (assuming I understand your question) what I did was to draw the bones and lock their length. Then when I drew circles around the endpoints of the bones, I locked the circle diameters. Then I drew (let’s call them Side lines) from the tangent of one circle to the tangent of the circle at the other end of the bone, and I set the Tangent constraints to ensure that the Side lines stay tangent. Note that I didn’t lock the length of the Side lines because you don’t want to set anymore constraints than are necessary. That gave me an enclosed area of half the width of the leg, which could be extruded. It’s a similar method, to the way I made the hydraulic cylinder profile at 3:40. Also note that to make the left and right linkages move symmetrically, I had one of those stretchy Hydraulic Cylinder lines on the left and right. I used the Equal Constraint to ensure that when the stretchy line changed length on one side, the stretchy line on other side was equal to it, so that linkage moved by the same amount. I hope that helps. Let me know if you have any other questions. I’m so glad that people are finding this video helpful.

@@greggjohnson621 Thank you so much for your prompt and clear explanation Gregg! It's a shame what we need the most can't be achieved on Shapr3D, at least not yet. Really hope they can add that function soon!

I don’t see a brand name on that one. I have another similar one that says Mimo. But it’s just a common phone charger with a USB-A socket.

Not that I know of currently, other than making a copy of the parts and manually snapping the parts to those new positions. But most things can be developed in this schematic approach in Shapr then modeled out. For more complex 3D interference analysis, I would tend to rig linkages in Fusion360, Modo (maybe Blender?) once I develop the basic linkage schematic here. Then in those apps, the moving parts can be copied as instances so you can show the linkage in both the extended and retracted positions. Then modify a part and see it’s shape update in both positions at the same time.

Yeah this is such a great capability, I’d think they’d promote it. When I posted the link on their help page, the creators of Shapr said they didn’t realize it could do this. I only discovered it because of that guy’s video showing the technique being used in Fusion360. I would add that for me, Shapr3D is WELL worth the license fee. It’s so fast and easy to learn and use.

GravitySketch does not do booleans. You would get really messy topology as a result of a Boolean operation, and it would look terrible when you subDivided it. I started out in CAD, so when I got into mesh modeling, I had no idea how to create any form I wanted with good topology. (Fusion360 is also capable of mesh modeling to a limited extent) In fact I had no idea what topology was at that time, so I didn’t really understand the advantages of mesh modeling. Topology is the basic boxes and inset surfaces of those boxes that make up a form. And of course when you turn on subD, it all smooths up nicely. So to finish this spaceship thing, you would make each panel, windshield or window as a separate piece, and each piece would have clean topology. That way, each piece could be made of just a few simple surfaces that can be subdivided to achieve a very smooth final surface. So this method I’m demonstrating, lets you see the shapes of the pieces you need to build to get a nice final look, by creating new topology (or re-topo as it’s commonly called) I hope that helps. I had thought of making a tutorial on topology, since I had so much trouble with it back when I started. I don’t know how many people would find that helpful.

@@greggjohnson621thanks 💯❌💯

The following is from memory, so if it doesn’t work for you let me know and I’ll go back and test it in GS: When you grab an edge, then trigger once to extend the edge, and move the new edge while still holding the grab button with your fingers, you can use your thumb to move joystick left or right, which will scale the edge down or up (respectively) Scaling with the joystick also works for faces on the fly.

@@greggjohnson621 Thanks a lot; it worked.

I’m so glad you found it helpful. I started in CAD too then started learning SubD many years later. Learning topology was the toughest part. GravitySketch is by FAR the easiest way to learn topology and SubD modeling.

The best part is that when two or more people are collaborating in real time, you can see each other’s headsets, controllers and pop up menus, so it’s easy to point any talk about things, and easy to teach the menu options to a new user.

Here’s the Amazon link for you: www.amazon.com/dp/B073XZH264?psc=1&ref=ppx_pop_dt_b_product_details

@@greggjohnson621 Thanks, I already have it and I'm playing with it. Have a great holidays Greg!

🤣🤣🤣 I have to admit, that’s a fair statement. I actually posted this just so I could send a friend a link showing an example of a model in GravitySketch VR for Oculus Quest. I can’t believe it has 34,000 views.

@@greggjohnson621 its all good buddy. I was just joking. Im jalous though cause I would love to be able to creat things like that. I went to college for computer aided drafting so its smething Ive always been interested in

@English Slava yes

@English Slava Yes

The point wasn't the design, but the availability and cheap production. Also, DeLoreans are awesome

It may look better but the 30x stainless steel can’t be bent like that. It’s flat for a huge reason. Unless you want to pay $200k for the same material since current machines can’t bend this metal. It was crucial for the price to be low

@Robert Johnson. Thanks but I was just experimenting with GravitySketch VR for the Oculus Quest and I was curious what it would look like with a little Subdivision smoothing. I actually like the hard edge look. Though I admit it took awhile for me to warm up to it.

@EI The Saint Louis Arch is also made of stainless and it is my favorite building in the world. Rising from two triangular foundations the three exterior surfaces join at 600’ in the sky. So astonishingly elegant. Stainless is a wonder material and the hard edges of the Cyber Truck honor its amazing properties. Stainless lends itself to fundamental forms and the Cyber Truck is exactly that. I have to respect that fundamental purity of form. As Elon said; “It’s not for everyone.” ...but if I needed a truck, it would be my first choice.

That little battery case came with an RC car I had. It just holds four AA batteries in series so it’s a 6 volt source. I’ll bet Adafruit or SparkFun would have that sort of thing. I also tried a 5 volt lithium ion phone charger battery and it also worked (though I think the voltage was a bit below the ideal level.) But those phone charger batteries come in such a wide range of sizes, they make a great power source and it’s easy to swap out a depleted battery with a charged one.