![]() |
pic: Enigma Wheel
|
Re: pic: Enigma Wheel
Wow... It's been awhile since I've been on here... Finally something I'm semi qualified to speak about. Semi.
First off, the CAD looks very nice. And the wheel is a decent design, except for the loop on the end of the spokes. It is very likely to snap there. And the part after it contacts the wheel is just adding weight. Any chance of a different view angle? (If you have it on a picasa or photobucket, something like that?) How wide is the wheel? What's the width of the spokes? The depth? Whats the bore diameter? -Rion |
Re: pic: Enigma Wheel
Quote:
|
Re: pic: Enigma Wheel
i don't think the spokes will break, if the center bore is .5 in then those spokes are pretty thick. if you are planning to use these in a 6wd robot then i think it should be fine, as longs as there are no bumps in next years game.
|
Re: pic: Enigma Wheel
Looks like fun!
If you have an experienced mechanical mentor available, ask her to show you how to do a "Finite Element Analysis" or to simulate what types of stresses will develop when you load it. This design should show some very interesting and informing results. |
Re: pic: Enigma Wheel
Quote:
Then... create a light, snap-on decorative hubcap that fits onto that wheel and adds only trivial weight to the completed assembly. The hubcap's wow-factor is limited only by your imagination (and the audiences' ability to appreciate fine art :)). |
Re: pic: Enigma Wheel
Quote:
I'll get some other views of it. As I said my computer wasn't cooperating with me. Quote:
Quote:
Quote:
Edit: Wheel is 1.5in deep, 6in wide Spokes are .5in deep, .25in wide Any other measurements you would like? |
Re: pic: Enigma Wheel
I think it would be more reasonable, if you wanted the question marks, to make fairly large spokes and use the question mark shape as a lightening pattern.
|
Re: pic: Enigma Wheel
Quote:
|
Re: pic: Enigma Wheel
Another nitpick: You're going to need to cut out a groove for the bearings in your wheel.
|
Re: pic: Enigma Wheel
Quote:
Quote:
Are you running Inventor? I haven't been able to get a hold of Solidworks or Inventor recently so I can't remember which one has the 3 axis in the bottom that looks like that. New picture edit: I don't know if the spokes have enough contact with the wheel. I also think you may be ale to pull weight out of the hub there. |
Re: pic: Enigma Wheel
Quote:
|
Re: pic: Enigma Wheel
Quote:
|
Re: pic: Enigma Wheel
I'm with Blake on this one. There are options to make it very aesthetically pleasing using a hub cab, including annodizing the wheel and the decoration different colors. Even doing this to an AM Plaction wheel and no plate annodization could be 'pretty'.
Of course the drive train needs to be designed such that the wheels can be seen to begin with, otherwise wheel aesthetics are for naught. In 2008 & 2009 aesthetic wheel design proved futile due to bumper rules, which is another thing to keep in mind during build season. |
Re: pic: Enigma Wheel
Quote:
I'm with you guys as well. However, it seems he is doing this as an exercise in CAD, which is perfectly fine by me. Its nice to design something you are familiar with to start (like an FRC wheel of sorts). Keep up the good work, and keep trying new things. Brando |
Re: pic: Enigma Wheel
Quote:
|
Re: pic: Enigma Wheel
I am our lead programer and Electrical guy. I don't do to much with CAD for the actualy robot I just thought it would be fun to learn, which it is. Thanks for all the input. I think I will try going through some tuturials next. How exactly should I go about adding a groove to the wheel? How big should it be?
|
Re: pic: Enigma Wheel
Quote:
For a grove I typically make them about .1" in depth. I put a rectangle on a plane(top, side, of front depending on how you made the wheel) referenced to the "top" of the wheel. Leave some material on each side, and exit the sketch. Then do a revolve cut with the axis of rotation for the wheel as the rotation point. Sorry if that sound complicated. I haven't used CAD in months and it's from memory. |
Re: pic: Enigma Wheel
To get SolidWorks sponsorship please register at www.solidworks.com/sponsoreddesigncontest
There is a good analysis example in optimizing a wheel. Select Tools,Add INS,SolidWorks Simulation Select Help, SolidWorks Simulation Tutorials For design. Look at the SolidWorks Tutorials to strengthen your modeling skills Learn from others. Go to www.3DContentCentral and search on wheel, frc Keep practicing. Marie |
Re: pic: Enigma Wheel
Quote:
|
Re: pic: Enigma Wheel
We only ask that students not on a team be a mentor to a robot team - FIRST, MATE, BOT BALL, BEST, VEX, Robocon, Robocup....any team that has a national or international competition and meets US export compliance. Marie
|
| All times are GMT -5. The time now is 00:47. |
Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Copyright © Chief Delphi