stripped screw advice (Bambu P1S)

[C Mytko]

Hi all - 

I thought someone might have some good advice for me. As you know there are two camps -- you either let kids do maintenance / repairs on 3D printers, or you don't. I think the agency and ownership is valuable.... and, sometimes they do things like not tell me when they are having trouble removing a screw. 

Our Bambu 3D printer was humming along nicely, until it wasn't. Some fairly 3D competent kids went to troubleshoot, and stripped the screws as shown. Any tips? I've tried a rubber band. I've used screw extractors on wood, but never on a screw this small, nor on a machine this expensive. 

All ideas and tips appreciated. 

[hele...@isomers.com]

I've used pliers to slowly turn and remove screw. Good luck!

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[Sarah Murphy]

Not sure it would work on a really small screw, but drilling out the screw is a technique my partner uses on his motorbike.

[Jaymes Dec]

This works well if the screws are not too tight: https://www.thisoldhouse.com/woodworking/21015710/easy-way-to-extract-a-stripped-screw

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[Michael Tempel]

You could try cutting a new slot in the head of the screw. This can be done with a hacksaw, but from your photo, it looks like there isn't much room to get a blade into position. An alternative is a rotary cutting like a dremel.

[Tim Cooper]

In Canada, we would jam the largest robertson screwdriver (square head) we could fit in there and nudge them out slowly but firmly. This works well on hex screws like that. You could probably get a set from Amazon or Amazon.ca. This is assuming you have replacement screws.

Best,

Tim Cooper

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[Marcus L. Twyford]

Harbor Freight sells some fairly inexpensive screw extractors...or try a Torx but as the edges may grab better.

[Jennifer Sabados]

Hello all,

I have a handful of student projects that need some help with electronic elements including some programming. I know basic schematics, but it's a whole new world out there with companies like Sparkfun. I would love to hope on a zoom with someone that might have the patience to walk me through next steps for my middle school students and get me pointed in the right direction to learning more in depth applications for the future.  

My apologies ahead of itme for my ignorance and thank you in advance for your time.

Jenny

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[C Mytko]

Good morning! And to those of us who are K-12 teachers in the US, congratulations on making it to winter break!

Anyway, it looks like our Bambu P1S screw is stripped again. I love this printer, my only frustration is that these two soft screws are the gatekeeper to all repairs within! The last time this happened, we tried jamming in a larger screwdriver, using a rubber band, and even some fancy screw extracting pliers from Japan. What finally worked was that someone with a smaller cutting wheel than I came and cut a slit so that we could remove it with a flathead screwdriver.

I don’t have access to that person or tool anymore, any ideas on what that may have been? Do I just get a tiny cutting wheel for the Dremel?

Additionally, does anyone have any insight for me to prevent this in the future? I know Bambu sells extra screws for the A1 mini, but I’m not even sure what the screws in the front of the P1S. I can keep working on improving the sloppy work of my middle school maintenance crew, but in the meantime, is it possible to just get the same screws made of a stronger material?

Christine

[Michael Tempel]

 a cutting wheel for the Dremel is perfect.

[Tim Cooper]

I live in Canada, birthplace of the Robinson screw type. It is a square head (like hex but two less sides). It is really good at jamming into a striped hex. You can get them a t most hardware stores and amazon, Get an assortment and jam in the biggest one that fits. Once they are out you can figure out the replacements.

Best,
Tim Cooper

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