pic: 3280 Tape Measure Hanging Mechanism
 

Re: pic: 3280 Tape Measure Hanging Mechanism
 

Cool idea. What kind of hook are you using, and how far must the tape advance before it goes over the bar? My experience has been that tape measures collapse pretty easily.
Good Luck!

Re: pic: 3280 Tape Measure Hanging Mechanism
 

The hookis made of bent aluminum and weighs ~2 oz, the tape measure we used advertises as being able to extend 13 ft horizontally before it collapses. It can easily make it up to the bar.

Re: pic: 3280 Tape Measure Hanging Mechanism
 

Your mechanism is extremely clever. I'm jealous. Congrats on having lots of rookie ingenuity!

Re: pic: 3280 Tape Measure Hanging Mechanism
 

1712 prototyped a few different versions of tape measure-based hanging devices, but weren't able to produce one that could meet our desired results. What brand and model tape measure did you use? Can you post some pictures of your hook? Were you able to avoid any issues with the cantilevered load on the tape measure?

Re: pic: 3280 Tape Measure Hanging Mechanism
 

My experience with prototyping such devices leads me to believe that this is a FatMax Extreme tape measure from Stanley.

Great work!

Re: pic: 3280 Tape Measure Hanging Mechanism
 

I attempted a prototype with one of those, so I'm trying to see what differences they had that led to better results. That is one beast of a tape measure, though.

Re: pic: 3280 Tape Measure Hanging Mechanism
 

Did you see this thread? http://www.chiefdelphi.com/forums/sh...ad.php?t=82109

Re: pic: 3280 Tape Measure Hanging Mechanism
 

I saw that in Boston, and it was awesome. Every time you guys went up to hang everyone would turn around to see the "tape measure bot" lift itself up. The most impressive thing was that it worked very well, one of the most consistent hangers of the competition.

Re: pic: 3280 Tape Measure Hanging Mechanism
 

Yeah, that's the one.

I will see if I can find some pictures of the hook tomorrow.

Re: pic: 3280 Tape Measure Hanging Mechanism
 

The black box/housing everything is assembled in is easy to understand. My questions are:

1:Is the tape spool a custom part? If so how did you attach the tape?

2:How does the spool fit in the assembly?

Re: pic: 3280 Tape Measure Hanging Mechanism
 

Can someone please give me some more information on this concept. I would like to build a prototype.

Re: pic: 3280 Tape Measure Hanging Mechanism
 

Agreed, more information would be useful.

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Thirded.

Re: pic: 3280 Tape Measure Hanging Mechanism
 

my team has been talking about this type of mechanism since kickoff, personally I would like to know how well this works for you and if we should give more thought to this idea.

Re: pic: 3280 Tape Measure Hanging Mechanism
 

How do you drive the tape upward? do you some type of rollers?

Re: pic: 3280 Tape Measure Hanging Mechanism
 

Have you been able to find the additional pictures?

Any other details can you give us?

Thanks.

Re: pic: 3280 Tape Measure Hanging Mechanism
 

Hey guys. This team is no longer in existence. Miki Oliver was the lead mentor/coach for 3280. He is on a rookie team now in RI...but he doesn't come on CD. James Brown is probably the only person I know that I believe saw the device in action back 2010...he might still have pictures.

Re: pic: 3280 Tape Measure Hanging Mechanism
 

For the FTC Res-Q, on my home-school team, our idea was extremely similar. We used a thicker, stronger measuring tape and screwed it onto drawer sliders made of steel and it extended more than 5 feet in length. The measuring tape hanging mechanism is a great idea.

Re: pic: 3280 Tape Measure Hanging Mechanism
 

How is the hook attached to the end of the tape measure?

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The tape idea seems really good if you're looking for a compact lifting mechanism, which we are. But our team was a rookie last year so we have no idea how to go about doing this. Are there any kits or parts that you need to get for this, and if not how would you go about making one?

Re: pic: 3280 Tape Measure Hanging Mechanism
 

How did you keep the tape measure from releasing once you had pulled your robot to the height you wanted it? Was it some kind of locking mechanism or was your spool on a worm-drive or non-backdrivable gearbox.

Could you post a picture of the other side of the gearbox?

Re: pic: 3280 Tape Measure Hanging Mechanism
 

I haven't done one of these myself so I may be completely wrong, but this is what I understand between what I've read and in attempting a tape measure potentiometer last year:

Tape measure rules are flat sheets of (essentially always) steel. These sheets are rolled onto the axle inside the tape measure unit in a flat configuration where they bend quite easily, but are bent a few degrees (typically about 10 or 15) as they leave the tape measure through a curve molded into the case so as to provide stiffness against the tape buckling. Stanley Fat Max appears to be the best on the market at this function.

Tape measures are meant to be pulled, not pushed. The challenge then becomes one of driving the unrooling of the spool at the shaft end before the curvature is added, or driving the tape after it is curved without ruining that curvature (this should be easy for teams who can sculpt a wheel's profile on a lathe).

Re: pic: 3280 Tape Measure Hanging Mechanism
 

If you push fast enough, they don't seem to care.

https://www.youtube.com/watch?v=rNyMEM3njrM
http://www.youtube.com/watch?v=qJFQkBGCgaE&t=0m19s

This mechanism just ran a 1.625" rubber Banebots wheel against a tape measure. It was flat at the drive wheel, but had a long support that allowed the tape to curl back up.

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Hey guys i was wondering if you guys have a CAD file for the tape measure kit. If u do plz msg me or comment back. Thanks.

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I know we are taking on the challenge of making a tape measure climber. We hope to post video and pictures soon we are prototyping with a few tape measure a dewalt 1-1/4", Milwaukee that is nylon coated and a Stanley max steel. We're using a vex 3 motor single reduction gearbox 84/12 and tiny colons from vex.We will share our findings