Team 4183 Bit Buckets prototype hook [Archive]

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kuraikou

07-01-2015, 22:51

Mike Marandola

07-01-2015, 22:57

This is a pretty neat idea and I don't even need to zoom in to see the details!

http://i.imgur.com/hh0IQWD.png

MysterE

07-01-2015, 23:27

This looks nice. Great job!

asid61

08-01-2015, 01:19

Nice hook. It looks like it can only lift one tote at a time though. Have you tried putting a hook on either side?

GUI

08-01-2015, 01:25

The hook can hold several totes, but it was intended for one at a time. We have not played with using multiple hooks per tote yet, but that is the approach we're most likely to take.

asid61

08-01-2015, 02:26

Okay. The tote in the video looked very crooked.

JesseK

08-01-2015, 07:50

The hook can hold several totes, but it was intended for one at a time. We have not played with using multiple hooks per tote yet, but that is the approach we're most likely to take.

One of the Ri3D robots noted that picking up multiple totes with a single hook would eventually cause damage to the bottom tote. Start at 0:45 - https://www.youtube.com/watch?v=wa6wvzM2naA

inquiryteacher

08-01-2015, 07:57

Today our team came up with an interesting idea for a way to pick up/ store totes and so here is our first prototype of this idea.

Video:
https://m.youtube.com/watch?feature=youtu.be&v=n7Nhm6VCoJ8

Pictures:
http://www.bitbuckets.org/wp-content/uploads/2015/01/IMG_20150107_1843451.jpg
http://www.bitbuckets.org/wp-content/uploads/2015/01/IMG_20150107_1844291.jpg

Nice Hook Design....

Now .... can you design it so that it can sit on top of 5 just like it, all connected by chain / rope / wire, that can be indexed up as you pick up 5 totes? Gravity will unload you and bring the clips back to the bottom for another run...

z_beeblebrox

08-01-2015, 08:42

Now .... can you design it so that it can sit on top of 5 just like it, all connected by chain / rope / wire, that can be indexed up as you pick up 5 totes? Gravity will unload you and bring the clips back to the bottom for another run...

That's our plan for today.

GilaMonsterAlex

08-01-2015, 09:33

Very cool design!!

Skyehawk

08-01-2015, 21:55

This was something that we considered, but ultimately ruled out because of strength concerns of the totes, and lining up was an issue.

Amar Shah

10-01-2015, 01:59

Took this idea and ran with it. It's not a standalone hook, rather additional stuff will be mounted on the front. Hoping to build it tomorrow.

http://i.imgur.com/ya8PVhd.jpg

asid61

10-01-2015, 02:23

Took this idea and ran with it. It's not a standalone hook, rather additional stuff will be mounted on the front. Hoping to build it tomorrow.

Are you going to add mounting holes on the flats?
How are you going to cut the wood into that shape? Are there slots I can't see?
Neat design. I like the modularity.

inquiryteacher

10-01-2015, 07:13

Took this idea and ran with it. It's not a standalone hook, rather additional stuff will be mounted on the front. Hoping to build it tomorrow.

http://i.imgur.com/ya8PVhd.jpg

Very Nice Rendering.

Have you considered making the triangular part on the back of the clip a little larger, perhaps twice the size? If you add holes along the bottom backside of the clip ( with a bit larger triangle... ) you could adjust the angle of the front face of the clip by simply moving a the bottom connecting pins to new locations.

Just in case you new assembly's added to the front of the clip need angle tweaking.

I have to learn to cad better. Good luck.

Amar Shah

10-01-2015, 11:19

Are you going to add mounting holes on the flats?
How are you going to cut the wood into that shape? Are there slots I can't see?
Neat design. I like the modularity.
The mounting holes are going to be hand drilled, this is just for prototyping. The wood is laser cut, just like 4183's design. The darker surfaces are the laser cut edges, and you can see that there are a few pieces inside intended to keep everything square.

Very Nice Rendering.

Have you considered making the triangular part on the back of the clip a little larger, perhaps twice the size? If you add holes along the bottom backside of the clip ( with a bit larger triangle... ) you could adjust the angle of the front face of the clip by simply moving a the bottom connecting pins to new locations.

Just in case you new assembly's added to the front of the clip need angle tweaking.

I have to learn to cad better. Good luck.
I probably could have done that, but I made this model in a couple of hours to fit around the wood we already have, and I have to laser cut this right now before our next meeting. I'll keep that in mind for the next iteration.

moeyo1000

13-01-2015, 16:46

z_beeblebrox

13-01-2015, 17:16

My god, if you guys can make a multi-hook system that would be awesome, because i was proposing a very similar idea, but we opted out for a simpler design than mine, so it would be awesome to see another team make my dream design come true!

We're working on it!

http://i.imgur.com/ZK059B0l.png (http://imgur.com/ZK059B0)

To see more of what we've been doing, check out our engineering journal here (https://docs.google.com/document/d/1yJcPm_AowhCHcU7ar9Ro6c0JX3nmPp5_fvaBUQZFbKY/edit?usp=sharing).

Amar Shah

13-01-2015, 17:46

That is a really ingenious design. However, I'm trying to figure out if is possible to set down totes over an existing stack. Will the hooks swing up and over the handles when moving downwards?

GUI

24-01-2015, 04:12

We've been working on this concept a bit.
http://youtu.be/UoA_eIrpr-Y

mrnoble

24-01-2015, 10:10

We chose to go with something similar. Very exciting to see how effectively you have implemented it!

MrForbes

24-01-2015, 10:11

I'm gonna have to make a trip up to Tucson tomorrow, to see that in person!

(and watch the movie again)