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twist knobs for back window

edsigg

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Where can i find the twist knobs to lock the back window into place?
 

frito

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Good luck with that. You are in the same boat as many of us. They no longer make them. I found them online a couple places just to have my orders canceled with messages they no longer have any.

You could try a junk yard but odds are they'll break when you try to remove them. My daughter has a 3D printer and I'm trying to get her make some. I know there would be a market if she'd just do it.
 

Navigatin1

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Question. For the people that need them, could they be made out of billet aluminum on a CNC? I would think if yes, you might be able to find a place to make them.
 

frito

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Question. For the people that need them, could they be made out of billet aluminum on a CNC? I would think if yes, you might be able to find a place to make them.
Ya know, since my daughter hasn't made them I was thinking just a couple days ago I'd rather it be made out of some sort of metal. I'm sure it could done and would outlast us. What I don't know is the $$$$$$$$$
 

20streetrod06

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does anyone have the measurements to be able to draw one up for it to be manufactured? my CNC or printer?
EDIT--- i now see that there is already a file for them on Thingiverse

as for a printer, i know some of the local libraries around me have printers and will print items for a small fee. i imagine other libraries around the country have similar set-ups.
 
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Navigatin1

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Ya know, since my daughter hasn't made them I was thinking just a couple days ago I'd rather it be made out of some sort of metal. I'm sure it could done and would outlast us. What I don't know is the $$$$$$$$$

The trick is, one would have to be intact to be digitized. Once it’s digitized, it’s off to the CNC for machining. If I had to guess, $50 to $75 for the pair.
 

BainMan

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does anyone have the measurements to be able to draw one up for it to be manufactured? my CNC or printer?
EDIT--- i now see that there is already a file for them on Thingiverse

as for a printer, i know some of the local libraries around me have printers and will print items for a small fee. i imagine other libraries around the country have similar set-ups.
Link?
 

BainMan

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Thanks!

In case others didn't know, or Frito's daughter doesn't get around to it, there are 3d printing services online like https://printathing.com/ You can paste the link that 20streetrod06 so kindly posted into the printathing.com website and it will create a quote to print/ship you the part. I don't know enough to tell you what the best infill and layer thickness would be for this part though...
 

20streetrod06

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many projects on Thingiverse have comments by the creator that say what they had success with on scale, infill, thickness, ETC. I've only had 1 thing printed from Thingiverse, but it was prefect!
 

EXT4ME

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This should be cool.

I hope the 3D project takes into account the left and right parts are different.
 

Code3Av

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So did anyone on Thingiverse make these ? How do I go about buying some ?
 

frito

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So did anyone on Thingiverse make these ? How do I go about buying some ?
My daughter made one for me but I haven't had a chance to try to install it yet. I'll try to get to it this weekend and let you know how it goes. Of note, it is a bit different than the one that came off mine. i don't know if GM had a minor redesign somewhere along the lines or what.

Edit: Now I see from going back to the thingverse link above that the creator modified it so the spring and backing plate isn't used. Guess that explains my initial challenge and why I needed to give it another go.


PXL_20210223_204507959.jpgPXL_20210223_204503313.jpg
 
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Code3Av

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Installed mine today, pretty straightforward, I took lots of pics to help you guys out if you want to attempt this. If you can screw a nozzle on a hose you have the ability to do this job alone. Here we go. one.jpgtwo.jpgthree.jpgThe first pic is whey you are here, the second pic is after I cleaned some of the goo off you can see the clip that you need to retain to install the new part. 3rd pic is the actual clip and a plate that you can discard because it won't be needed anymore
 

Code3Av

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ok. first pic is the spring behind black plate, discard, next pic is the broken nub leftover from poor engineering, discard, next pic I installed original just to "clock" where I was going to setup new part basically arrow pointing to unlock and last pic is cleaned shaft and if you look hard you can see where the clip will land about halfway
 

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Code3Av

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Insert clip, only goes in one way. Then place over shaft and push on till flush. YOU ARE DONE ! Great job ! Any questions, just ask !
 

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frito

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I installed the driver side that my daughter printed for me this afternoon. Like you said, straight forward. I however and keeping the spring and backing plate in my center console just in case. I have a sneaky suspicion this is going to result in a rattle. I think the spring was there to keep it taught and not rattle around.
 

Code3Av

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I installed the driver side that my daughter printed for me this afternoon. Like you said, straight forward. I however and keeping the spring and backing plate in my center console just in case. I have a sneaky suspicion this is going to result in a rattle. I think the spring was there to keep it taught and not rattle around.
I thought the same thing but the stem clearance is super tight and when the window is in store position it has plenty of torque on it. I looked everywhere for the weird clip that holds it on, I'll keep looking.
 

CarMech1969

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Same problem occurred on my 2002 2500 AV.
I was able to repair the twist knob with JB weld, and it has held up for a long while now.
But any amount of repeated wrenching on it will likely cause it to break again.
Looking at the pictures of the original design, I can see that this is just another item made to fail. It's quite evident.
And then, let's not offer replacement parts anywhere.
Dare I say it - "Planned obsolescence"....AGAIN?
Anyhow...
Those 3D printouts you guys have look like they will hold up well, with the reinforced section at the base where it clips onto the shaft.
Great job frito and Code3Av! (y)
 
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Code3Av

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This is really version 1, a stronger plastic will obviously last longer but I wanted to make the cheapest version first and see how well it holds up, they are literally pennies to make, next version will be stronger, I'm currently printing 4 sets, I'd like to contact the originator and offer $$ for every part made and kickdown some $$$, also 20streetrod06 and frito for finding the link, plenty of opportunity here :)

Also offer a lifetime guarantee with every set purchased, shipping included, no greed here just trying to create something for the Avalanche enthusiasts :)
 
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