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Unread 11-01-2015, 19:54
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Disk brakes
My team is planning on using a disk brake on our elevator system. We have standardized on 1/2 in hex stock for any type of shaft. The problem is that i can not find any disk brakes that use 1/2 in hex. How have other teams used disk brakes in the past?
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Unread 11-01-2015, 20:00
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Re: Disk brakes
We used a disc brake last year on our shooter.

No you won't find them in hex profiles.

We made our own aluminum disc last year that doubled as the spool for our cable/winch assembly. You can make your own disc and bolt it to a versa hub.
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Unread 11-01-2015, 20:11
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Re: Disk brakes
An aluminum plate sprocket on a Versa-hub would do for a rotor in a pinch.
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Unread 11-01-2015, 20:41
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Re: Disk brakes
Quote:
Originally Posted by electroken View Post
An aluminum plate sprocket on a Versa-hub would do for a rotor in a pinch.

That is actually a great idea. They fit the profile perfectly.
They sure would be better than what we can cnc plasma.
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Unread 11-01-2015, 20:45
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Re: Disk brakes
I know that 948 had an arm with brakes on it. This was a while ago though, maybe 2005. I think they did something based on bicycle brakes.
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Unread 11-01-2015, 22:14
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Re: Disk brakes
Quote:
Originally Posted by SoftwareBug2.0 View Post
I know that 948 had an arm with brakes on it. This was a while ago though, maybe 2005. I think they did something based on bicycle brakes.
That is what we are planning to do. Use a disk brake caliper from a bike and now a plate sprocket to keep our elevator stationary.
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Unread 11-01-2015, 22:46
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Re: Disk brakes
Here are a couple of views of how we used a disk brake for our 2011 winch controlling the should joint of the our scoring arm. We used brake cable and short stroke pneumatic to actuate it. It is all mounted on an AndyMark toughbox.
Attached Thumbnails
Click image for larger version Name: DiscBrakeA.jpg Views: 244 Size: 66.6 KB ID: 17814  Click image for larger version Name: DiscBrakeB.jpg Views: 220 Size: 89.6 KB ID: 17815  
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Unread 11-01-2015, 21:18
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Re: Disk brakes
Quote:
Originally Posted by electroken View Post
An aluminum plate sprocket on a Versa-hub would do for a rotor in a pinch.
We did this on our shooter last year and it worked great, just don't paint the sprocket without masking the rotor area.
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Unread 11-01-2015, 20:17
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Re: Disk brakes
Quote:
Originally Posted by Munchskull View Post
The problem is that i can not find any disk brakes that use 1/2 in hex.
Funny, I have been having a hard time finding bike wheels with 1/2" hex too...

The sprocket idea has to be the most cots friendly solution.
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