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-   -   Tubing for ball intake (http://www.chiefdelphi.com/forums/showthread.php?t=154376)

RoboChair 30-01-2017 13:20

Re: Tubing for ball intake
 
Quote:

Originally Posted by Mike Marandola (Post 1638076)
Is it just me or are people talking about 3 different things? The structural tube for a roller, gripping material to put on the roller, and urethane belting.

No, there is definitely 3 different conversations in this thread.

Skyehawk 30-01-2017 13:21

Re: Tubing for ball intake
 
Quote:

Originally Posted by Mike Marandola (Post 1638076)
Is it just me or are people talking about 3 different things? The structural tube for a roller, gripping material to put on the roller, and urethane belting.

Yup, there are 3 different answers for an ambiguous question here...

Skyehawk 30-01-2017 13:47

Re: Tubing for ball intake
 
Quote:

Originally Posted by RoboChair (Post 1638149)
McMaster Carr specifically we use https://www.mcmaster.com/#5234k91/=1650h8o for our 1.25" OD rollers this year. Yes that is a 0.25" interference.

You cannot pull it on at all. You will need to use compressed air and someone with a reasonably strong arm.
...

If you do not fully understand I can make a youtube video tutorial on Wednesday.

A tutorial would be awesome! Have you tried soapy water/ Murphy's Soap? I know this may not be an ideal solution due to residual soap left after application, but it may just work...

Also I just ordered the components to try this out for myself... should be interesting.

EricLeifermann 30-01-2017 13:51

Re: Tubing for ball intake
 
Quote:

Originally Posted by RoboChair (Post 1638149)
McMaster Carr specifically we use https://www.mcmaster.com/#5234k91/=1650h8o for our 1.25" OD rollers this year. Yes that is a 0.25" interference.

You cannot pull it on at all. You will need to use compressed air and someone with a reasonably strong arm. Zip-tie/safety-wire one end of the tubing to an air nozzle so that you get a good seal. Next you must plug off your aluminum roller so that air can't flow through it. one person controls air flow, the other holds the tube and tubing and does the hard part. turn on the air and begin pushing the latex on to the aluminum, DO NOT FOR ANY REASON clamp your hand down on the aluminum tube underneath the latex(your hand should never be that far up anyway) or you will get a 100psi balloon animal with a desire to pop. Alternate the airflow on and off to let you move your grip lower on the latex.

If you do not fully understand I can make a youtube video tutorial on Wednesday.

We've found that if you put the air on the end you are trying to pull on to the roller you don't need to plug anything.

Can't tell you which way is faster, it may very well be that yours is...

RoboChair 30-01-2017 13:57

Re: Tubing for ball intake
 
Quote:

Originally Posted by Skyehawk (Post 1638170)
A tutorial would be awesome! Have you tried soapy water/ Murphy's Soap? I know this may not be an ideal solution due to residual soap left after application, but it may just work...

Also I just ordered the components to try this out for myself... should be interesting.

I feel soap would actually be counter productive, it would make it easier to slide off quickly if you mess up the order. But seeing as the latex is literally floating on air there isn't much that the soap would do.

I will post a reminder in our team slack to put the video together during our next meeting on Wed.

Skyehawk 30-01-2017 14:04

Re: Tubing for ball intake
 
Quote:

Originally Posted by RoboChair (Post 1638182)
I feel soap would actually be counter productive, it would make it easier to slide off quickly if you mess up the order. But seeing as the latex is literally floating on air there isn't much that the soap would do.

I will post a reminder in our team slack to put the video together during our next meeting on Wed.

I was more referring to a non-compressed air approach, however, 250 thou is a lot to overcome for an interferance fit, even with an 'easily' yielding material. Probably not possible.

How do you adjust the ends of the rollers? i.e. move the last inch of the latex up to your mark on the Al tubing?

RoboChair 30-01-2017 14:08

Re: Tubing for ball intake
 
Quote:

Originally Posted by Skyehawk (Post 1638189)
I was more referring to a non-compressed air approach, however, 250 thou is a lot to overcome for an interferance fit, even with an 'easily' yielding material. Probably not possible.

How do you adjust the ends of the rollers? i.e. move the last inch of the latex up to your mark on the Al tubing?

Razor blade. If I want a 24" roller, I NEED a piece at least 28" long and cut to the 24" mark when I float the end to the right position. I will also demonstrate how we make segmented rollers with multiple pieces on one length of roller.

clydefrog88 30-01-2017 16:32

Re: Tubing for ball intake
 
Quote:

Originally Posted by RoboChair (Post 1638149)
McMaster Carr specifically we use https://www.mcmaster.com/#5234k91/=1650h8o for our 1.25" OD rollers this year. Yes that is a 0.25" interference.

You cannot pull it on at all. You will need to use compressed air and someone with a reasonably strong arm. Zip-tie/safety-wire one end of the tubing to an air nozzle so that you get a good seal. Next you must plug off your aluminum roller so that air can't flow through it. one person controls air flow, the other holds the tube and tubing and does the hard part. turn on the air and begin pushing the latex on to the aluminum, DO NOT FOR ANY REASON clamp your hand down on the aluminum tube underneath the latex(your hand should never be that far up anyway) or you will get a 100psi balloon animal with a desire to pop. Alternate the airflow on and off to let you move your grip lower on the latex.

If you do not fully understand I can make a youtube video tutorial on Wednesday.

Thanks! The devil is in the details, and I love to hear them.

1493kd 31-01-2017 07:49

Re: Tubing for ball intake
 
Quote:

Originally Posted by RoboChair (Post 1638182)
I will post a reminder in our team slack to put the video together during our next meeting on Wed.

We would appreciate that video very much as we are putting our intake together this week with the same set up for the first time.

chapman1 31-01-2017 12:34

Re: Tubing for ball intake
 
Quote:

Originally Posted by RoboChair (Post 1638182)
I feel soap would actually be counter productive, it would make it easier to slide off quickly if you mess up the order. But seeing as the latex is literally floating on air there isn't much that the soap would do.

I will post a reminder in our team slack to put the video together during our next meeting on Wed.

Another possibility for the "slide it on without air" option is to use hairspray. This is a common method used when installing motorcycle hand grips. Slippery when wet, sticky when dry.

The "sticky when dry" caveat, however, should not be ignored. A 20" wide roller has only the two ends of the rubber tubing to facilitate evaporation. Four sections, each 5" wide, however, might allow for fairly rapid evaporation of the hairspray...

RoboChair 31-01-2017 12:42

Re: Tubing for ball intake
 
I might as well do a round belt welding video at the same time. What other intake and conveyor stuff would you like me to add to the to-do list?

Skyehawk 02-02-2017 11:33

Re: Tubing for ball intake
 
Quote:

Originally Posted by RoboChair (Post 1638652)
I might as well do a round belt welding video at the same time. What other intake and conveyor stuff would you like me to add to the to-do list?

How to make poly round belts have identical tensions so they don't 'wander' on the rollers.

CalTran 02-02-2017 12:44

Re: Tubing for ball intake
 
Quote:

Originally Posted by RoboChair (Post 1638652)
I might as well do a round belt welding video at the same time. What other intake and conveyor stuff would you like me to add to the to-do list?

If it's not too late, probably also replacing polycord tubing and belting - I've seen both designing for accessibility and forming the bands on the roller


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