Cast Aluminum Heated Bed for Ender 3 and Ender 5 3D Printers

Wow, what an absolutely stellar product. Super easy to install. Really high-quality machining, lovely cables, and the silicone heater is a game-changer.
Don't hesitate to try this out if your S1 bed crapped out like mine; this is a big step up from that. The price was super reasonable too!

Face it, modern ABL will easily manage a warped bed - within reason. My stock Creality bed varied by about 0.2mm but it still printed fine. I can level the cast bed, with a magnetic sheet, to 0.05mm! Still prints great and seems to keep the temperature stable due to it's extra mass. If bed weight is important to you, this might not be the best upgrade - it definitely weighs more than stock.

One tip: after applying the magnetic sheet, but before attaching the heater, I pressed the plate under a slab of marble with about 80 pounds of weight on it overnight. I'm not sure how much of a difference it makes, but it seems to me that it would flatten-out and variation in the magnetic sheet or adhesive.

In short, I'm really pleased with the cast bed!

The plate came with undersized holes but after emailing gulfcoast I received a reply the next day regarding it. After issues were resolved the plate came out to be easily leveled. I would definitely buy another one If I get another printer.

what can I say 1000% better then stock ender 3 v2 bed heat up times are so fast and supper flat and easy to lvl the bed also super happy what are you waiting for buy one (Just Take Your Time setting it up)

This was not the magic bullet that I thought it was going to be, while it is flatter than the bed that came stock on my ender 3 s1 it has noticeable (to the Klipper leveling assistant) dips, getting the corners leveled still leaves me off by .05 in a couple inconvenient places.

Those are not the real problem though. First, if you are putting this on the ender 3 s1 you cannot tighten the springs more than roughly half otherwise the wires on the underside get caught on the back of the frame before the y-axis trigger can be hit. the bottom of my heating pad is a little chewed up but fortunately it still works.

and as a small quibble, they really should debur the plate, I sliced my finger pretty good opening the package before finding the note telling me to debur it.

Overall if this pack had come with rigid standoffs to a height that would make it safe for the s1 (and probably any ender 3) or at least a warning I'd give another star to my score.

A side note in their favor, the dual sided PEI sheet may be the nicest I've used.