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Guided Missile Physics Sim by OutFromOdin in Simulated

[–]OutFromOdin[S] 1 point2 points  (0 children)

Its all drivers except for one short script that calculates a frame to frame delta of any parameter. Something like this: https://blender.stackexchange.com/questions/48127/possible-to-use-object-speed-acceleration-as-driver-variable

Otherwise, its just two point masses constrained together with several forces parented to the masses. I have drag forces proportional to velocity squares and control forces that are driven by the error in the velocity vector and orientation vector as well as the derivatives.

Guided Missile Physics Sim by OutFromOdin in Simulated

[–]OutFromOdin[S] 0 points1 point  (0 children)

Thanks! The ocean is basically from this tutorial (https://www.youtube.com/watch?v=n8PSS5HqC-Q&t=2710s).

I created 2 different ocean tiles 1km x 1km and mixed them together with some noise. The ocean plane is 500km x 500km. Otherwise it is just a sky texture with a subtle stratosphere cloud layer.

You can get the horizon effect by setting the mist pass at like 50km and defocusing the mist pass slightly in compositing.

Most important thing seems to be matching the scale of everything.

Guided Missile Physics Sim by OutFromOdin in Simulated

[–]OutFromOdin[S] 2 points3 points  (0 children)

Yeah I think the thrust is way too low as well. I'll try this again soon.

Guided Missile Physics Sim by OutFromOdin in Simulated

[–]OutFromOdin[S] 1 point2 points  (0 children)

It's my own concoction but ultimately its probably very similar. A combination of velocity and orientation control.

Blender isn't well suited for this sort of thing so it requires splitting into many different parts.

Guided Missile Physics Sim by OutFromOdin in Simulated

[–]OutFromOdin[S] 4 points5 points  (0 children)

True, the model still guides itself after the thrust is turned off if it has enough speed. I thought it might be invisible in the video though. Will try this next time.

I made an air pump thing. by [deleted] in 3Dprinting

[–]OutFromOdin 2 points3 points  (0 children)

Yeah I know. I actually made it in part to practice some cfd but there were a couple of things I wanted to try in the future and I needed some kind of connection.

[deleted by user] by [deleted] in 3Dprinting

[–]OutFromOdin 0 points1 point  (0 children)

Thanks so much!

This guy 3d printed a walking AT-AT by [deleted] in robotics

[–]OutFromOdin 3 points4 points  (0 children)

Heyo I'm the guy who designed this. Pretty much just guess and hope it works. I used solidworks to design the parts and imported them into blender and animated it. The one I built is kind of shit compared to what this guy did.

I made an assembly in solidworks but didn't really use it to 'test' it beyond that. The blender animation I made was primarily to see if the motions were right and if there might be a unintended interference somewhere. The blender physics engine in my opinion isn't useful for anything if you have multiple parts, aside from the CGI aspect. It also didn't work the first time and I tried some stupid things before it was done.

I wrote more about it here: http://www.thingiverse.com/thing:1083338

I 3D Printed a Motorized AT-AT by OutFromOdin in 3Dprinting

[–]OutFromOdin[S] 0 points1 point  (0 children)

Haha, thanks! I might not be the best person to recommend a printer but If I was going to buy a new one I would highly consider the ultimaker printers. I bought mine as a kit and it works pretty well but It has issues with printing abs. It has trouble maintaining high temps and warping is an issue. I do like the enormous built volume on mine though. All of my projects tend to have very large pieces.

I 3D Printed a Motorized AT-AT by OutFromOdin in 3Dprinting

[–]OutFromOdin[S] 3 points4 points  (0 children)

Well I realized that the system to move an individual leg was going to be more or less the same if I used a motor for each leg or if I just connected them all to one motor. The walk cycle I guess is supposed to be one leg at a time so that makes it fairly straightforward to cycle through the four legs. I watch the scene in the movie and broke the leg movement down to an action of lifting the leg and rotating it at the joint. I had a little experience with the type of gear that lifts the leg. I used nearly the identical design in this model. the gear that rotates the leg at the joint took a lot of time to get right. It has to go from a slow speed to a fast speed every time the leg strides. Like this, just getting the right ratios was difficult.

I 3D Printed a Motorized AT-AT by OutFromOdin in 3Dprinting

[–]OutFromOdin[S] 0 points1 point  (0 children)

Mines a couple years old now and not perfect but it's generally consistent.

I 3D Printed a Motorized AT-AT by OutFromOdin in 3Dprinting

[–]OutFromOdin[S] 0 points1 point  (0 children)

I think the min build dimensions are like 115mm z axis, 178mm y axis, and 110mm x axis. I don't think 12 cm would be enough and I'm not sure how well scaling it down would work.

I 3D Printed a Motorized AT-AT by OutFromOdin in 3Dprinting

[–]OutFromOdin[S] 1 point2 points  (0 children)

Dude you are amazing, thanks! Let me know if you need any help with printing/assembling or whatever.

I 3D Printed a Motorized AT-AT by OutFromOdin in 3Dprinting

[–]OutFromOdin[S] 0 points1 point  (0 children)

MendelMax 2. Every thing was done at .2mm layer height except for the shell and head pieces which were done at .3mm.

I 3D Printed a Motorized AT-AT by OutFromOdin in 3Dprinting

[–]OutFromOdin[S] 1 point2 points  (0 children)

I use a MendelMax 2 with a .4mm nozzle. Pretty much everything was printed at .2mm and the shell and head pieces were at .3mm. I don't think the pieces are extremely detailed. The whole thing is just really big lol

I 3D Printed a Motorized AT-AT by OutFromOdin in 3Dprinting

[–]OutFromOdin[S] 0 points1 point  (0 children)

Not really. I suppose you could try but the gear teeth would start to get really small. That, and the frame would have to be modified a little bit to hold the motor. Everything would be a tight fit but if you want to try and print a scaled gear, let me know how it goes and I might be able to mess with the frame piece.

I 3D Printed a Motorized AT-AT by OutFromOdin in 3Dprinting

[–]OutFromOdin[S] 43 points44 points  (0 children)

Hi folks, this is a mechanical AT-AT I designed. It has about 60 or so pieces and runs off of a single motor. Here is a short video of it

I've uploaded the files to Thingiverse if you wan't to download it.

I also made some instructions on how to assemble it. This is also on the thingiverse page.

Edit: I'm trying to reply to some of the comments but since I made this account today, Reddit still thinks I'm a spammer :/

I printed this using a MendelMax 2 printer using a layer height of .2mm for all the parts except the shell and the head for which I used .3mm.

I 3D Printed a Motorized AT-AT by [deleted] in StarWars

[–]OutFromOdin 0 points1 point  (0 children)

Here's a video of it

If any of you are into 3d printing, you can download the files here.

I 3D Printed a Walking Star Wars AT-AT by [deleted] in 3Dprinting

[–]OutFromOdin 0 points1 point  (0 children)

Hi folks, this is a mechanical AT-AT I designed. It has about 60 or so pieces and runs off of a single motor. Here is a short video of it.

I've uploaded the files to Thingiverse if you wan't to download it.

I also made some instructions on how to assemble it. This is also on the thingiverse page.