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Originally Posted by TRWSHSHLX
Thanks a lot!
So Cody CAD every link on the robots huh... Wow.
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Actually Cody did that for some things, But in VEX we try to do that so we have our photorealistic renders like... This
We like doing final renders with every possible detail so at Aperture Robotics we design so that there isn't tensioning in things really we like it when things runs smoothly and not having to be tensioned to much... I try to teach my students on Exploding Bacon FTC the same. The robot shown only needs 2 chains tensioned out of the 8 runs of chain that there are, they did a great job engineering it and we hope to build it this summer (I think)
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How do you render the pictures of the robot in Autodesk? Like what're the specific settings? I've never tried to make presentations / render pictures of my team's robot since I only cad it for the engineering / to-see-if-stuff-fits side of it.
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Actually you won't believe me when I tell you this but the picture posted in the last post is just live rendering just enabling lighting and shadows into the model makes for what I thought to be a really pretty (for "stock" rendering) render. You also can use Inventor studio, something I haven't quite taken the time to learn myself. I normally export to Autodesk Showcase or something like that (Learning Publisher now) and I do my renders in render specific programs. Cody however says screw it and throws it into 3DS Max and makes some absolutely stunning works. (The original render image file size for the mecanum render attached is 50 mb).
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When I used PTC I selected the axles and type in the numbers for the ratio and it spins the axles automatically, however it does not show the "calculated route". So for the chain calculation program in Autodesk, does it automatically wrap around the sprocket or there's some magical thing you need to do?
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The chain calculation program in Inventor basically asks for whatever kinds of sprockets or idlers are in your "chain assembly" I guess I'll call it and what you do is select the mid-plane of the sprocket tell it the chain size and the number of teeth on the sprocket and how many sprockets and such. Here is where I have had trouble for some reason maybe I just haven't thought of a way to do it but constraining the sprockets it makes for you (speaking of which another idea just came up and ill have to try tomorrow) What happens though is it creates a chain path and a mock sprocket. Tools then show up that allow you to move the sprockets along 2 axis in relation to the plane they are already constrained to. Now what I do here is line up the mock sprockets with the FTC sprockets on the assembly and then click calculate after its all done. (Believe me Its ALOT EASIER doing it than reading it...)
If all else fails contact me on Skype, AIM or Facebook and I'll be glad to teach it to you.
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Your robot looks sweet... Can you post more pictures?
Questions about robot:
Drive type?
Drive ratio?
# of drive motors?
Which dispensers?
Magnetic?
Grab two goals (it looks it can but doesn't hurt to check: ) )
Thanks again!
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Drive train: Coaxial Crab Drive (first ever in FTC I think?)
Drive Ratio: 4:3 as shown (this was going to change)
Number of Drive Motors: 6 Drive Motors 2 more motors for intake and mechanical line up.
Which Dispensers: All, The students were working on magnet baton systems for this one.
Two goals, um actually It might have been able to do just that with a little bit of extra playing with it. I was really excited for this robot like you have no idea. I was on the verge of calling up some of my machining contacts to help build it.
The codename for this bot went by the "469 of FTC" due to one thing some students on our team wanted to try. Write the mother of all autonomous modes, This Autonomous mode would "swallow" the goal in autonomous mode carry it over the bridge line up on any of the dispensers and call it a day. I think we had numbers calculated for an absolutely perfect match with something upwards of 500 points (considering automode got one full dispenser inside the goal)
Enjoy some renders of the bot
Sorry for the long post.
Hope you find this helpful.
- Andrew