I have a question for people using an ELEGOO Mars 3D printer

Tools, Techniques, and Reference Materials
1

Hi,

I can pull my resin vat apart again and take the fasteners to the hardware store and figure out what to buy, but I was hoping someone might have the information for me if I ask.

I am looking for what size the 3 screw sizes are under the vat that hold the FEP film in place. There are 4 larger corner screws. There are a round of medium sized screws, and then there is a round of smaller screws.

I have replaced the FEP film 3 times and the hexes in the screws are already starting to round out. Partially because of cheap hardware, and partially because of the cheap allen wrenches I am using.

I want to know the screw sizes so I can upgrade to TORX fasteners.

2

Howdy,

I don’t know the exact sizing but most big box hardware stores have thread gauge plates that you can use to determine the size and thread count of the screw. Just bring the screws you want and test them in the store. Then it’s just select the length and screw head type you want. Amazon also sells thread gauges if you wish to determine it from the comfort of home.

Good luck!

3

Yeah, I’ll probably just have to bring some hardware in to the store with me.

4

It took a few days, but Elegoo got back to me and told me what hardware to use. That is pretty sweet!

Now to see if I can get this hardware with TORX heads.

5

Great news! Any chance you’d share what they told you?

6

I guess… :upside_down_face:

The little guys that bolt the two FEP plates together are flathead M3 screws that are 5mm long.

The medium screws that fasten the FEP frame to the bottom of the vat are flathead M4 screws that are 12mm long.

And then there is a large cap head screw at each corner. those are M4 x 10mm long. I don’t think this information is correct because I think these 4 screws are larger than the medium screws listed above. I need to confim this one.

As far as thread pitch goes, they didn’t tell me. But they are standard pitch. Meaning you don’t have to buy fine threadded screws, just get the regular ones…

M3 x 0.5mm
M4 x 0.7mm

2 Likes
7

Superb! Thanks, Chad!

8

Thanks for sharing the info. Always nice when a mfg is free with information that helps us maintain their product.