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#1
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[FTC]: CAD Library Inventor
Hello,
I was wondering if anyone in FTC would be interested in a CAD library formatted for Inventor 2012 organized into folders based on the parts features. I recently published my Library for VEX on the VEX forum and I am willing to make one for FTC as well. If you are interested in my VEX CAD Library download it here: http://ge.tt/6sYQlWK?c Keep in mind this is the first version so there are lots of areas for improvement! So would anyone be interested if I published my library for the FTC kit of parts as well? - Andrew |
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#2
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Re: [FTC]: CAD Library Inventor
That'd be awesome!
I'm also in VRC and I personally think Autodesk is more user-friendly than Pro/E and it'd be great to have a CAD library for Autodesk! The good thing about Tetrix parts is the holes are not square so it's easier to constraint but Pro/E sometimes... Yeah ![]() Thanks in advanced! |
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#3
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Re: [FTC]: CAD Library Inventor
I think this would be helpful as well, thanks for offering!
Now, if only I still had my copy of Inventor... ![]() |
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#4
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Re: [FTC]: CAD Library Inventor
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Yeah VEX is hard to CAD for that reason as I have mostly the FTC Kit organized and ready except for maybe coloration. However VEX has a little more work in it I will post Updates to both CAD libraries when I have added something. Give me a few days to take out some of the modified parts and Ill get the LIbrary up for FTC! Quote:
You are talking to the right guy for finding Inventor . Actually no its pretty easy to get Autodesk software if you are a student anywhere, they have this nice thing called "The Autodesk Education Community".All you have to do is visit this website: http://students.autodesk.com/?nd=first_home and create an account and download Autodesk Inventor Professional 2012 and any other program that is on the list! Its THAT Easy!!! ![]() If you have any more questions feel free to ask - Andrew |
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#5
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Re: [FTC]: CAD Library Inventor
How're you going to color the parts? Since all the parts are chrome...
On a different topic, do you actually cad the chains when you cad the robot? I didn't try to do that but I'm always curious how. I didn't recall any teams from World's that used PTC had actual chains on their models... The only models that I had saw with chains on it for VEX / FTC are the ones that were cad by cody (smartkid)... Oh and how do you make the gear on the motor mounted on the motor shaft mesh with the other gears? Last edited by TRWSHSHLX : 17-05-2011 at 15:38. |
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#6
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Re: [FTC]: CAD Library Inventor
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Since FTC actually uses chain that is used in the industry there is a calculation tool in Inventor that does the chain routing for you given you have the right placements and calculations it will make a virtual run of the chain normally a blue representation like in this picture ![]() This is my teams planned FTC bot this year. We never built it but I can answer questions about that as well P.S. I taught a student how to CAD with this robot, He is graduating this year and I'm pretty proud of him. I only wish we got to see this robot perform as we had a different version built for states and were hoping to build this for Worlds if we got in, However we did not.In relation to making gears mesh I just rotate the motor until its at pretty much the right spot for the model, If it doesn't work I would redesign. - Andrew |
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#7
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Re: [FTC]: CAD Library Inventor
Thanks a lot!
So Cody CAD every link on the robots huh... Wow. 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. 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? 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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#8
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Re: [FTC]: CAD Library Inventor
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![]() 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) Quote:
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If all else fails contact me on Skype, AIM or Facebook and I'll be glad to teach it to you. Quote:
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 ![]() ![]() To give you a view of what the robot looks like without the moveable goal. ![]() ![]() Sorry for the long post. Hope you find this helpful. - Andrew Last edited by Andrew Remmers : 18-05-2011 at 01:39. |
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#9
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Re: [FTC]: CAD Library Inventor
I've seen the picture of the mecanum on VEX forum before and I thought it was real... IT LOOKS REAL...
If there wasn't the label in the picture I'd still think it's real... And about the robot, I knew that it's a crab drive when I first saw it but I didn't really believe it... And as far as I know / can remember, it's the first crab drive in FTC. I think the advantages of the crab drive are limited in this year's game because of all the obstacles. I'll try the chain tool sometime in the near future. What size chain does FTC have again? #25? Thanks for the pictures! They look awesome and explains a lot! And as for autonomous, what happened mostly at World's this year in elimination rounds was both alliances scored all preloads and had a defensive route so that if the other team attempted something your team had planned then it will be stopped. Did your team have any plans to avoid obstacles? Can't wait till you release the KOP for FTC in Autodesk!!! And last question for now, what are the specs of the computer that you're running all the programs (Autodesk Inventor, Showcase, etc.)? Thanks! |
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#10
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Re: [FTC]: CAD Library Inventor
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Specs. 2.66 Ghz Intel Core 2 Duo Processor 8 GB of RAM (recently upgraded from 4 GB had no problems with 4GB just had the opportunity to upgrade to 8GB for free )Both discrete and dedicated graphics cards Nvidia 8600 and 8800 I think? Forget that one and a 7200 RPM 320 gb hard drive |
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#11
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Re: [FTC]: CAD Library Inventor
Nice! VEX college has 60 seconds of autonomous and sounds like he can do some serious damage... Especially in the college challenge when the alliance can work together. I think getting all the balls & barrels to the isolation zone to score would be the key (since there's NO gate that can be lifted...) and it's nearly impossibly to defend against during autonomous.
A combination of Gyro & Accelerometer should be able to do what you described with some serious coding (especially for the accelerometer) if implemented correctly (Heading using Gyro, X & Y displacement using accelerometer). Do you know whether the programmer utilized the protoboard? If so, what kind of sensors did he use? Thanks again! |
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#12
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Re: [FTC]: CAD Library Inventor
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Aperture is going a different way I'm sure you have see our Hand Of God discussion. Well thats the isolation bot the other bot we still dont quite know what to do, since the odds of actually getting that entire center stack of game objects are very slim considering the robot that would have to do that would be fairly complex, so we are taking a different approach that does close to the same thing but in a different way, however you will have to wait and see for that one - Andrew |
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#13
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Re: [FTC]: CAD Library Inventor
I feel bad for whoever is going to be carrying the robot on and off the field...
How do you constraint nuts and bolts in Autodesk? Thanks. |
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#14
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Re: [FTC]: CAD Library Inventor
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If its FTC I use a simple insert constraint (Furthest one to the left on the constrain tool bar) its pretty easy If you have any problems go ahead and ask away P.S. I did some real rendering of our FTC bot today... These are the results... ![]() ![]() -Andrew |
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#15
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Re: [FTC]: CAD Library Inventor
Interesting looking collector!
I'm having issues constraining the nuts and bolts with VEX parts. They're all centered through the axis (I added axis in their sketch on all the parts but after that I found out SuperSonic 24# posted their CAD library and they did the same thing... Yay for dedication...) and they're mated on both sides of the metal but it doesn't work. What's the offset for tangent constrain? And what tangent to what?But for some reason it works when there's no metal in between... Are the parallelograms on the side for lining up to dispensers? Thanks! |
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