Caliper Steering

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windu34
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Re: Caliper Steering

Postby windu34 » November 28th, 2018, 5:27 pm

karanbe123 wrote:
windu34 wrote:
MadCow2357 wrote:First of all, welcome back :) ! I thought you weren't active on the forums anymore... I think I speak for all of us when I say your presence is much needed and appreciated!
Anyways, would the advantage of using a plastic dial caliper be the easiness of drilling it? My partner got a stainless steel one, and so we're not even gonna bother drilling. Wondering if a nice plastic one could be the solution to our problems...

The advantage is in the weight, although drilling followed by nut/bolt and epoxy sounds much better than just epoxy.

I think nut or bolt should be enough although it depends on the initial infrastructure. Accuracy is more important in terms of score, but speed is going to become increasingly important as the year goes on so sometimes weight should also be taken into account.

Depends on what you think "enough" is. If youre trying to get <2cm accuracy, I would advise adding a layer of epoxy because the smallest shifts that seem microscopic can have compounding effects and mess you up by a couple of cm's. Of course if this is not a concern to you, then you're right, epoxy isnt all that necessary
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Re: Caliper Steering

Postby Kai0721 » January 1st, 2019, 9:09 am

I’m assuming digital calipers are not allowed because it is an electric component other than those listed in the rules. Am I correct?
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Re: Caliper Steering

Postby MadCow2357 » January 1st, 2019, 9:27 am

Kai0721 wrote:I’m assuming digital calipers are not allowed because it is an electric component other than those listed in the rules. Am I correct?

Yes.
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Re: Caliper Steering

Postby RishithR » January 1st, 2019, 4:05 pm

builder83 wrote:Let me know how it goes. I ended up going with a bolt adjustment that was easier imo and accurate. I messed around with a metal caliper but thought it was too heavy. Didn't want to try a plastic one but it might work. I am pretty much to the same problem I had last year with a little skid at 11 plus meters when the car has too much momentum. The curves are cool but I am sticking to a 40cm gap playing it safe for regionals I think. Will have to get some time in a gym to calibrate everything still. Might get crazier than that. I am guessing 20 cm gap will be used at states? Just guessing.



How do you use a plastic caliper to steer the car?

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Re: Caliper Steering

Postby MadCow2357 » January 1st, 2019, 5:32 pm

pigeon wrote:
builder83 wrote:Let me know how it goes. I ended up going with a bolt adjustment that was easier imo and accurate. I messed around with a metal caliper but thought it was too heavy. Didn't want to try a plastic one but it might work. I am pretty much to the same problem I had last year with a little skid at 11 plus meters when the car has too much momentum. The curves are cool but I am sticking to a 40cm gap playing it safe for regionals I think. Will have to get some time in a gym to calibrate everything still. Might get crazier than that. I am guessing 20 cm gap will be used at states? Just guessing.



How do you use a plastic caliper to steer the car?

Same as a metal caliper.
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Re: Caliper Steering

Postby Hopelessnewbie » January 3rd, 2019, 3:18 pm

How do I apply a caliper to the EV? Are bearing blocks absolutely necessary, because mine uses a standard wheel and axle format...

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Re: Caliper Steering

Postby MadCow2357 » January 3rd, 2019, 5:16 pm

Hopelessnewbie wrote:How do I apply a caliper to the EV? Are bearing blocks absolutely necessary, because mine uses a standard wheel and axle format...

Okkkaayyyyy double post (though it was probably accidental i understand ;) ) and you basically asked the same question in the other forum :roll: ... agh anyways

Since calipers vary in size, there are no universal mounting pieces that can be used. You kinda just have to wing it and make stuff yourself, though I heard mirror mounting brackets will sometimes suffice. Use screws and hex nuts, and try machining brackets out of aluminum.

And for the bearings question I already answered you in the topic you created.
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Re: Caliper Steering

Postby goscioly » January 3rd, 2019, 8:49 pm

I like to see how a Caliper Steering actually works, does the kit from https://wardsci.com/store/catalog/produ ... 470309-700 have caliper steering? I got most of what need to be built, but caliper steering is something I am not able to get a handle on, I did look at the https://www.youtube.com/watch?v=pKC8MYR ... e=youtu.be and the forum thread on Steering. Any other pointers?

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Re: Caliper Steering

Postby builder83 » January 4th, 2019, 6:51 am

goscioly wrote:I like to see how a Caliper Steering actually works, does the kit from https://wardsci.com/store/catalog/produ ... 470309-700 have caliper steering? I got most of what need to be built, but caliper steering is something I am not able to get a handle on, I did look at the https://www.youtube.com/watch?v=pKC8MYR ... e=youtu.be and the forum thread on Steering. Any other pointers?


Really doubt the kit comes with caliper steering. I have never seen a kit buggy be competitive either but... it's all about what you do with it I suppose. Lot of guys here use caliper steering so I'll let them chime in on that. Personally I use a bolt adjustment for front axle steering and it works rather easy and I feel lighter and as accurate. Good luck!

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Re: Caliper Steering

Postby retired1 » January 4th, 2019, 7:37 am

You might want to consider using a 4-40 bolt and nut for your adjustment as you can get more precision that with a 32 or 24 thread bolt or all thread.

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Re: Caliper Steering

Postby builder83 » January 5th, 2019, 6:23 am

retired1 wrote:You might want to consider using a 4-40 bolt and nut for your adjustment as you can get more precision that with a 32 or 24 thread bolt or all thread.

Great point! I made that mistake first but I did get a fine thread now. Not sure about the exact number. I have to crank 2 full revolutions of tightening a side down to adjust from a 'smoother' 12 meter turn down to a 'sharper' 9 meter turn.

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Re: Caliper Steering

Postby Hopelessnewbie » January 10th, 2019, 6:36 am

When it comes to calipers, how do they work? If I find a way to mount it, how exactly am I setting it up? I already checked out Nestor Tchkencho's video, but I am not using bearings for regionals because they haven't come yet and just drilled holes in my chassis for the axles.

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Re: Caliper Steering

Postby PM2017 » January 10th, 2019, 11:28 am

Hopelessnewbie wrote:When it comes to calipers, how do they work? If I find a way to mount it, how exactly am I setting it up? I already checked out Nestor Tchkencho's video, but I am not using bearings for regionals because they haven't come yet and just drilled holes in my chassis for the axles.

I think your first priority should be to somehow reduce friction. If you can run to a nearby home depot or lowes you should try to get bushings for your vehicle, if bearings are not possible.
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Re: Caliper Steering

Postby MoMoney$$$;)0) » January 21st, 2019, 12:55 pm

For the current event how do you figure out the send in angle of the buggy, and what the angle of the axle should be. Our team is very confused. Please Help!

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Re: Caliper Steering

Postby MadCow2357 » January 21st, 2019, 2:01 pm

MoMoney$$$;)0) wrote:For the current event how do you figure out the send in angle of the buggy, and what the angle of the axle should be. Our team is very confused. Please Help!

Well if you have adjustable steering, you just gotta test it a lot with different configurations. To my knowledge, there is not really a set equation to find the angle you want, and it would depend on the buggy as well.
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