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Extra strong T-connector for Shoulder Rig

by MarcusWolschon, published

Extra strong T-connector for Shoulder Rig by MarcusWolschon Apr 16, 2011

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Summary

I found that the forces on the handles of the rig can be quiet strong due to the leverage.
e.g. when accidentally hitting a door.

This T-connector is changed to be much thicker and stronger.

blog post:

http://marcuswolschon.blogspot.com/2011/04/en-extra-strong-t-connector-for.html

photo album:

https://picasaweb.google.com/Marcus.Wolschon/20110325Bis201105ShulterRigBauen?feat=directlink

discussion:

http://forums.reprap.org/read.php?88,75536

project notes in my wiki:

http://sourceforge.net/userapps/mediawiki/marcuswolschon/index.php?title=Projects/Camera/ShoulderRig

Instructions

The through-hole side goes on the handle, the clamped side on the horizontal bar that connects the handles with the rig.

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looks fine to me.

Try printing it. The flaws become apparent.

I hate to break this to you but that white thing you see on the photos,

it's printed and actually in use.

Printed without any issues on the first try.

Repman with a heated bed. Last calibration of my skeinforge-settings was half a year ago and the heated bed is not regulated at all. Just straight 230V, reaches about 130-160
°C.
Extruder is pretty clogged with ABS dust from continuous use and grinding.
Still, even that rusty thing printed it fine.

So, you found issues? Let's work them!
I would prefer to use clamps on both sides but you can't bend ABS along the normal of the layers.
It will delaminate and break.
That's
why I had to use this crude through-hole method on one end.
It's the biggest design issue and I have no solution.
Any suggestions?
Let's stop spamming and actually get something done.
What change do you propose?
What happened when you tried to print it? On what kind of machine and material?

The design is still flawed.

Well, it is certainly not perfect with the through-hole bolt but works better

then the last iteration. Both iterations work in the real world and I'm using them.

As far as better designs go, I'm all ears and have asked in the forum for
ideas on how to do that a few times.
What do you suggest to make a better one?
Sadly I have heard few if any suggestions from you, just bickering.
What do you think is it's largest issue to be addressed?
I suggested a hinge
mechanism but so far it's first design iteration was too weak and suffered the same delamination issues as the double-clamp design with my materials due to the large lever forces.
(How do you say that in english? leverage forces? leveraged forces?)

I thought you had high standards? So far they seem pretty low.

Yea...very constructive.

You admit is is not perfect yet you don't give it a "work in progress" status? How about finishing and testing your designs instead of offering flawed, incomplete designs that could destroy thousands of dollars of camera equipment.

Who said it was flawed or incomplete?

It works, it's printable, complete, has the source-files, is documented and does the job.

I pointed out ways to design a better one.
Now it's your turn to actually do something constructive for a change.

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