Powder coated v smooth - my experience so far.  

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charles.h13
(@charles-h13)
Famed Member


As for the person saying the kings sheet is better I have one and the flatness of the coating leaves a lot to be desired. With 3x3 mbl it’s all but unusable for large prints and with the 7x7 it’s usable but first layer is nowhere near as uniform as my PEI sheet. Read other users experience and see the Kings acceptance criteria on Amazon prior to jumping on the sheet. I have both revisions from the king and feel both were a waste of money and primarily use my PEI sheet as it outperforms the kings sheet in every way except texture.

https://www.amazon.com/Thekkiinngg-Double-Sided-Textured-Powder-Coated-Version/dp/B07HQZCWDV

I read the reviews, it's rated 4.6 with 21 reviews. Coating thickness is raised by a couple. I must be luckily or oblivious, as the 24/7 job I mentioned covered the entire plate and I had nearly zero (0.15%) problems. I stopped using the prusa pei sheet for king v2 in May and that was plenty more variable. Then in November for the v3 and it was amazing, I would have no concerns buying another now. The prusa plate is a little less aggressive texture but otherwise seems the same

Just FYI - I nabbed on ebay for $4.99 plus shipping.

Posted : 04/03/2019 7:56 pm
edward.c6
(@edward-c6)
Reputable Member



As for the person saying the kings sheet is better I have one and the flatness of the coating leaves a lot to be desired. With 3x3 mbl it’s all but unusable for large prints and with the 7x7 it’s usable but first layer is nowhere near as uniform as my PEI sheet. Read other users experience and see the Kings acceptance criteria on Amazon prior to jumping on the sheet. I have both revisions from the king and feel both were a waste of money and primarily use my PEI sheet as it outperforms the kings sheet in every way except texture.

https://www.amazon.com/Thekkiinngg-Double-Sided-Textured-Powder-Coated-Version/dp/B07HQZCWDV

I read the reviews, it's rated 4.6 with 21 reviews. Coating thickness is raised by a couple. I must be luckily or oblivious, as the 24/7 job I mentioned covered the entire plate and I had nearly zero (0.15%) problems. I stopped using the prusa pei sheet for king v2 in May and that was plenty more variable. Then in November for the v3 and it was amazing, I would have no concerns buying another now. The prusa plate is a little less aggressive texture but otherwise seems the same

Just FYI - I nabbed on ebay for $4.99 plus shipping.

Was that the "damaged" one the king was auctioning? As an aside, I've not checked the V3 sheet using 7x7 mesh bed leveling as it is much worse than my V2 sheet using 3x3 mesh bed leveling but I figured since I was poo poo'ing it I should run another test. This is the results using 7x7 on stock Marlin Firmware... Definitely usable and ton's better than on 3X3 mesh bed leveling, though I'm not going to flash back to show the differences. I'm going to act like a politician and walk back on my negativity toward the ebay/amazon sheets.

Posted : 04/03/2019 8:43 pm
chris.n6
(@chris-n6)
Reputable Member


As an aside, I've not checked the V3 sheet using 7x7 mesh bed leveling as it is much worse than my V2 sheet using 3x3 mesh bed leveling but I figured since I was poo poo'ing it I should run another test. This is the results using 7x7 on stock Marlin Firmware... Definitely usable and ton's better than on 3X3 mesh bed leveling, though I'm not going to flash back to show the differences. I'm going to act like a politician and walk back on my negativity toward the ebay/amazon sheets.
ccca - 1.jpg

out of curiosity, is that pla or other? where is the stl for that? i'd like to run it on my prusa pc and tk v3 and see what it looks like. i have been printing on the prusa for a while now because I just haven't been running back to back prints that i need to take off and let cool. So I would be interested to see the diff in them, if any.

The thing i notice is TK is much shinier a surface. the prusa seems flatter to me

Posted : 04/03/2019 11:53 pm
edward.c6
(@edward-c6)
Reputable Member



out of curiosity, is that pla or other? where is the stl for that? i'd like to run it on my prusa pc and tk v3 and see what it looks like. i have been printing on the prusa for a while now because I just haven't been running back to back prints that i need to take off and let cool. So I would be interested to see the diff in them, if any.

The thing i notice is TK is much shinier a surface. the prusa seems flatter to me

That' the PLA that came with my MK3 jan of 18. I pretty much only use it for test prints at this point. Here's a link to the 5x5 stl

https://github.com/prusa3d/Prusa-Firmware/files/2716925/BedLevelTest-5x5.zip

and is from this thread... https://github.com/prusa3d/Prusa-Firmware/issues/1239#issuecomment-450537503

Posted : 05/03/2019 12:15 am
edward.c6
(@edward-c6)
Reputable Member


....So I would be interested to see the diff in them, if any.
....

I'd like to know what your results are, please follow up.

Posted : 05/03/2019 1:33 am
flioink
(@flioink)
Trusted Member

It took me a while to get why the Prusa videos feature different sheet than what I have :mrgreen:
At first I thought that they abandoned that powder coated thing even though it looks interesting as a surface.
Apparently the powder coated ones are highly sought after collectors item 😆
I fixed my bed adhesion woes with mostly using glue and rafts(for models with little surface contact).

Posted : 05/03/2019 1:51 am
charles.h13
(@charles-h13)
Famed Member



https://www.amazon.com/Thekkiinngg-Double-Sided-Textured-Powder-Coated-Version/dp/B07HQZCWDV

I read the reviews, it's rated 4.6 with 21 reviews. Coating thickness is raised by a couple. I must be luckily or oblivious, as the 24/7 job I mentioned covered the entire plate and I had nearly zero (0.15%) problems. I stopped using the prusa pei sheet for king v2 in May and that was plenty more variable. Then in November for the v3 and it was amazing, I would have no concerns buying another now. The prusa plate is a little less aggressive texture but otherwise seems the same

Just FYI - I nabbed on ebay for $4.99 plus shipping.

Was that the "damaged" one the king was auctioning? As an aside, I've not checked the V3 sheet using 7x7 mesh bed leveling as it is much worse than my V2 sheet using 3x3 mesh bed leveling but I figured since I was poo poo'ing it I should run another test. This is the results using 7x7 on stock Marlin Firmware... Definitely usable and ton's better than on 3X3 mesh bed leveling, though I'm not going to flash back to show the differences. I'm going to act like a politician and walk back on my negativity toward the ebay/amazon sheets.
ccca - 1.jpg

Damaged? That is what he said. I have yet to find the damage. I bought 2-3 of them.

Posted : 05/03/2019 4:10 am
OPK
 opk
(@opk)
Trusted Member

I can't believe that prints won't stick after cleaning the sheet with Acetone. In my case, it actually sticks too good 😉

Posted : 05/03/2019 4:23 am
chris.n6
(@chris-n6)
Reputable Member



....So I would be interested to see the diff in them, if any.
....

I'd like to know what your results are, please follow up.

after i posted this i found that the only way to zoom in is to right click and say open image in a new tab and then it will allow you dto zoom in.
this is on stock 3x3 firmware v 3.3.1 from last july. 3.4.x didn't work for me and 3.5.x i never tried because there was a heating issue. waiting for responses on 3.6 before i possibly flash it.

Posted : 06/03/2019 7:18 am
edward.c6
(@edward-c6)
Reputable Member


...
after i posted this i found that the only way to zoom in is to right click and say open image in a new tab and then it will allow you dto zoom in.
this is on stock 3x3 firmware v 3.3.1 from last july. 3.4.x didn't work for me and 3.5.x i never tried because there was a heating issue. waiting for responses on 3.6 before i possibly flash it.
....

If it ain't broke don't fix it.... In your case I'd say it ain't broke for sure. I'd be damned happy to get first layers like that.

I'm guessing that's PETG you printed with?

Posted : 06/03/2019 11:59 am
Texy
 texy
(@texy)
Reputable Member

Thing is that that's not the whole story. I can get very good first layers too, especially after moving to the 7x7 firmware. It still didn't stop corners lifting using the PC sheet.
I've had 100% success rate with the smooth sheet since I started using it, every day (and overnight) for a week straight now. I don't even need to clean it between prints - just make sure there is no excess filament bits on the bed from pre-heat oozing....

I love the texture that the PC sheet gives on the bottom layer, but I am getting constant failed prints then it just isn't worth it, for me.
Texy

Posted : 06/03/2019 12:14 pm
edward.c6
(@edward-c6)
Reputable Member


Thing is that that's not the whole story. I can get very good first layers too, especially after moving to the 7x7 firmware. It still didn't stop corners lifting using the PC sheet.
I've had 100% success rate with the smooth sheet since I started using it, every day (and overnight) for a week straight now. I don't even need to clean it between prints - just make sure there is no excess filament bits on the bed from pre-heat oozing....

I love the texture that the PC sheet gives on the bottom layer, but I am getting constant failed prints then it just isn't worth it, for me.
Texy

Yeah, 70C is the minimum temp I print with the ebay textured sheets, I usually print at 80. I may get some minor lifting in the corners with the textured sheet but nothing dramatic. Also my prints pop off the textured sheet much much easier than they do on the PEI sheet. I'm not sure about your setup but Prusa's original cooling nozzle has been poo poo'ed quite a bit for blowing cool air onto the build plate. If you're still using the R1/R2 version you may want to consider the R3+ version or one from someone else. Not sure about UK dish detergent but it sounds like others have had success with Fairy brand, I just make sure whatever I use doesn't have fragrances, skin softeners or other fru fru stuff the wife is fond of. I did use pure castile soap when the wife switched dish washing detergents on me and my parts stuck so hard to the PEI sheet I had to use a blade to get the part off. I've not used it on the Powder coated sheets because I don't use them too often due to poor first layers. Looking at others pictures I'm wondering if I have an issue with my heatbed or Y axis frame.

Posted : 06/03/2019 7:16 pm
cordilon
(@cordilon)
Eminent Member


after i posted this i found that the only way to zoom in is to right click and say open image in a new tab and then it will allow you dto zoom in.
this is on stock 3x3 firmware v 3.3.1 from last july. 3.4.x didn't work for me and 3.5.x i never tried because there was a heating issue. waiting for responses on 3.6 before i possibly flash it.

This looks practically flawless! How I envy you...
Since day one I had inconsistent first layers and wasn't able to completely figure out why. Made a post about it which I'll update soon.

Posted : 06/03/2019 7:18 pm
chris.n6
(@chris-n6)
Reputable Member


If it ain't broke don't fix it.... In your case I'd say it ain't broke for sure. I'd be damned happy to get first layers like that.

I'm guessing that's PETG you printed with?

nope white pla. in the winter i have to print at 230 or the extruder ends up plugged. so it's a little extra creamy coming out.

Posted : 06/03/2019 9:24 pm
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