EDIT: Nevermind

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BobbyJoe
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EDIT: Nevermind

Post by BobbyJoe »

EDIT: NVM I UNDERSTAND NOW THANKS!
Last edited by BobbyJoe on March 30th, 2019, 9:49 am, edited 2 times in total.
Rustin/Wright/Solon/Reg/PA/Nat Div B: '15-17, Div C: '18-
Disease D-
'15: 6/-/-/-/-/-/
'16: -/10/-/-/-/-
Air T-
'15: 2/-/-/-/-/-
Experimental D-
'16: 5/-/-/-/-/-
Mission P-
'16: 1/12/-/1/-/-
'17: 1/5/3/1/2/12
Crime B-
'16: 3/8/-/-/-/-
'17: 1/7/7/3/8/24
Wind P-
'17: 5/3/2/1/1/13
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Re: Accuracy and breaking on the way back? Breaking on the way forward?

Post by MTV<=>Operator »

BobbyJoe wrote:Hey Guys, I just wanted to see your thoughts on the above question because we are currently struggling with like all of that. We have the forward set to 8 m and backwards starting then but that is our only source of somewhat consistency. Once it starts going back we have no control of angle or stopping it. How are you guys making it? Pics in pm would also be greatly appreciated as we need tons of help. Also, what material are you making your vehicle out of? Thanks for all the help :!:

EDIT: I guess the more important question in this post is how do you make it break while going backwards (in case not all of the above questions can be answered).
Braking:
- In order to get the vehicle to stop at a particular point, most people use a wingnut braking system.
- https://www.youtube.com/watch?v=XoimpPdbVPE <<This video explains how to set up the system for this years rules
- You can buy a pre-assembled wingnut system here >> https://www.docfizzix.com/products/part ... 60df.shtml

Steering:
- I don't know exactly how to put together a caliper system, but this may give you some insight on steering >> https://www.docfizzix.com/topics/constr ... ring.shtml
- In caliper steering, one side of the steering axle has to be movable. The movable part is attached to the caliper in order to use the caliper to measure axle offset distance.

Material:
- My team used an entirely 3D printed chassis with some carbon fiber supports to prevent it from flexing
- You can build from carbon fiber, but this is pretty costly and is unsafe if not worked with properly
- You can also 3D print a chassis (at least 2 perimeters and 25% infill) or laser cut one from acrylic
- Pieces of wood can be used as well, though I wouldn't recommend balsa because of how easily it breaks

This video https://www.youtube.com/watch?v=oFZH9dry1ZU can be helpful in general as it provides information about all of these components.
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BobbyJoe
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Re: Accuracy and breaking on the way back? Breaking on the way forward?

Post by BobbyJoe »

EDIT: Understood!
Rustin/Wright/Solon/Reg/PA/Nat Div B: '15-17, Div C: '18-
Disease D-
'15: 6/-/-/-/-/-/
'16: -/10/-/-/-/-
Air T-
'15: 2/-/-/-/-/-
Experimental D-
'16: 5/-/-/-/-/-
Mission P-
'16: 1/12/-/1/-/-
'17: 1/5/3/1/2/12
Crime B-
'16: 3/8/-/-/-/-
'17: 1/7/7/3/8/24
Wind P-
'17: 5/3/2/1/1/13
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