this post was submitted on 30 Aug 2023
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Ender 3 V2 Neo Bolt Sizes (self.3dprinting)
submitted 10 months ago by Koopa_Khan to c/3dprinting
8 comments fedilink hide all child comments
 

I recently picked up an Ender 3 V2 Neo at auction. All the pictures looks great, I was told it functioned, and I saw some pictures of it put together.

Long story short either they didn't include the bolts to mount the screen/gantry or kept them.

Does anyone know what screen bolts and gantry mounting bolts I need? Thanks in advance!

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[–] [email protected] 4 points 10 months ago* (last edited 10 months ago) (1 children)

There are lots of resources for the different Ender 3 models online, its design is open source after all.

https://docs.sainsmart.com/article/fkyuwu4jhq-ender-3-v-2-3-d-printer

https://m.media-amazon.com/images/I/B1f9eP6H3OS.pdf

Looks like both of those say you need an M5x45 screw. That is, an M5 sized screw that's 45mm long: https://www.amazon.com/iExcell-Thread-Socket-Screws-Finish/dp/B08S7FLZ1D

And they're also both saying that each screw comes with a spring washer, to keep tension on the gantry: https://www.amazon.com/uxcell-Stainless-Spring-Washers-Gasket/dp/B0152FRDFM/

But first, I would check the ends of the gantry arms to make sure the screws weren't just stuck in there for safekeeping.

EDIT: to be more specific, the BOTTOM of the gantry is held by M5x45, but the TOP of the gantry is M5x25.

[–] Koopa_Khan 2 points 10 months ago

This is a lifesaver! I didn't have the install guide either so its bookmarked now.

No bolts in the gantry ends, but the M5x45s seem easy enough to find.

[–] [email protected] 3 points 10 months ago (1 children)

Not sure what specific screws are used for that piece, but as far as I know it's mostly metric M3/M4/M5 screws of various medium lengths in the 5-20mm range, so you should be able to basically eyeball it, get a box that contains a few of reasonably close sizes and try some until they fit.

[–] Koopa_Khan 2 points 10 months ago

I'm saving that list, thank you! I'm sure that will come in handy more than once

[–] FuglyDuck 2 points 10 months ago* (last edited 10 months ago) (2 children)

I’m guessing m5x20 socket head bolts.

They should be the same across the rest of the frame, pull one off and measure the diameter of the thread if you want to know. Alternative bring it to your local hardware store and match it in the grab-bag hardware aisle

[–] [email protected] 5 points 10 months ago

Here's some fun pedantry: those are actually called cap screws, because they're not paired with a nut. A screw becomes a bolt when used with a nut.

At least that's what a pedantic instructor told me once.

[–] Koopa_Khan 1 points 10 months ago (1 children)

Thank you! That's good to know, I'm glad they made it all standard

[–] FuglyDuck 1 points 10 months ago* (last edited 10 months ago)

Iirc, my friends cr10s had t-brackets on the outside joint to help with rigidity, those would have been m5x10 or so bolting into the appropriate t-nuts