Replacement bed

whopping pochard

There’s this on AliExpress which may or may not be flat enough to meet your needs:
https://a.aliexpress.com/_mtlWH1Z

If not, you might find a local machine shop who could surface it for you, although I’m not sure how much meat there is left above the magnets.

Otherwise, you can also order tooling plate aluminum cut to size form Midwest Metals if you’re in the US. https://www.midweststeelsupply.com/store/castaluminumplateatp5 Then it’s just a matter of putting some holes in the right spot and slapping a heater on there. Most recommend Keenovo for that, you can order in 24V or mains AC.

Good luck!

theruttmeister

Additional vote for Silicone encapsulated heater pads, with pressure sensitive adhesive.
Plus MIC6 aluminium plate (should come already more than flat enough).

From McMaster, 12x12x1/4" is $53.20 with a flatness tolerance of 0.015".
You could then get it ground or milled as flat as you are willing to pay for, but I've never had an issue with the tolerance off-the-shelf.

Its the same thing as the ATP5 from Midwest, who are quite a bit cheaper.

If you look around locally for ATP5 or MIC6, you should be able to find it anywhere, its ground that flat by the aluminium mill so it available globally.

mrehorstdmd

Buy the heater without adhesive, and glue it to the plate using high temperature silicone. The pressure sensitive adhesive will let go after about 2 years of use, and scorch the heater wherever it starts letting go of the plate.

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theruttmeister

@mrehorstdmd

That looks a lot more serious than the adhesive failing...

Plus silicone doesn't stick very well to alumimum.

No matter what, people should always have a mechanical attachment given the normal orientation.
High temp foam under the heater to keep it pressed up and in contact.

Hundreds of machines, at least, with silicone heaters with PSA, never had a heater or its adhesive fail. But they were all mounted on top of a high temp foam. Which also greatly decreases heat loss.

Veti

@RyanP

if you tell us where you are located maybe people that live in the same country can give you some advice.

you could also give https://de.aliexpress.com/item/33041249544.html a try. if its not flat you get to keep the pei sheet for the other bed.

if you live in europe there is a shop that sells a fine milled aluminium plate with pei applied
https://clever3d.de/epages/7a4290fc-7c7f-46cc-9b99-eadef22228e2.sf/en_US/?ObjectPath=/Shops/7a4290fc-7c7f-46cc-9b99-eadef22228e2/Products/c3d-DDP-PEI-natur

RyanP

@Veti Sorry guys. Ive solved my bed issue. It had to do with fan induction as my BL Touch is sitting in front of it and screwing with its readings.

Phaedrux

@RyanP Interesting. I wonder how prevalent that is with the BLtouch issues people have. Something to look out for.

RyanP

@Phaedrux

Well, I certainly have a love hate relationship with my BL Touches. Basically, as much as I HATE it, the dive speed for probing has to be SLOOOOOW. If I use any more than than F60 in my M558 command, I get weird results. So I have it set to F60, but my even agonize going down to F30 to see what the bed compensation results will be.

That all being said, a warped bed is a warped bed. The less you have to compensate the better.

Phaedrux

@RyanP You can do a double probing to speed up the first probe and then slow down for accuracy.

M558 F600 A1 ; probe onec fast
G30
M558 F60 A10 ; probe for accuracy
G30

RyanP

@Phaedrux

You always teach me something.