RE: MK4S to Prusa CORE One Conversion kit Waiting list
Ordered 04.02.2025, just shipped. Considering all the issues I'm interested to see how it turns out in my case 😛
RE: MK4S to Prusa CORE One Conversion kit Waiting list
I cancelled my conversion kit order today. I’ve been waiting since Jan 31. But it wasn’t the wait that bothered me; it was the accumulation of quality issues. Bed leveling, nozzle cleaning, door sensor, load cell sensitivity, poor filtration design, vfa’s, orthogonal misalignment, belt tension, g-code workarounds, poor mmu implementation, and on and on. The final straw being the mismatched pitch between z-axis motors.
I guess someone else will get theirs a little sooner now. Good luck with it! I’ll wait for the Core Two S, or better.
Refunded 3 days later. Not bad, considering they say it can take up to two weeks for the refund.
MK4S/MMU3
RE: MK4S to Prusa CORE One Conversion kit Waiting list
I ordered the conversion kit on the first of February and it was to to arrive today, but I wasn't in the house. It will be delivered tomorrow.
RE: MK4S to Prusa CORE One Conversion kit Waiting list
Ordered in the first few hours 31-01 and my kit has just shipped today. I have the kit, camera and filtration system. Date was half July, then moved to end of June, slipped a few days and now it's shipped.
RE: MK4S to Prusa CORE One Conversion kit Waiting list
Adopting the tone of this thread 🙂
I don't believe it! Prusa keeps delaying my shipment and diverting them. The website https://prusa3da-usa.shop has CORE One kits for $284.70, available NOW. Why is Prusa doing this, skipping their customers?
Seriously, the delays here have brought out the scammers. How can I best report this to Prusa? (XL 2-toolhead for $599? Inconceivable.)
RE: MK4S to Prusa CORE One Conversion kit Waiting list
I just checked my order again (February 9, 2025) and saw that it still hasn't been shipped. I noticed that a new order for an Mk4 -> Core One Upgrade Kit has a lead time of 5 to 6 weeks, but a Core One kit only takes 3 to 4 weeks.
I don't understand that; they have to pack a lot more for a complete kit.
There's really something wrong with PRUSA.
RE: MK4S to Prusa CORE One Conversion kit Waiting list
Dear all,
Day one order, delivered last week
This will be the last Printer Kit I ever order.
Disassembly was easy, but assembly is a pain.
If you are still waiting, order some spare parts (eg. Thermistor for the Extruder, Motors,...) especially the Thermistor cable brakes of easily 😭
RE: MK4S to Prusa CORE One Conversion kit Waiting list
Grrr, I am now even more annoyed about the slow delivery and the upfront payment, months in advance. I ordered on 2/2/25. Expected shipping date kept moving, usually later and later. The last date was by 26th June. Now the Prusa site proudly announces it has been on it's way since 26th. Only one problem from this end, DHL says that they were notified of the shipment on the 26th, but it has not yet been collected from Prusa. Prusa must think we're stupid! If the DHL website says its not in transit, then it's still at Prusa!
RE: MK4S to Prusa CORE One Conversion kit Waiting list
Relax, at least that means they're working on your order. I got the DPD tracking a few days before they received the package.
RE: MK4S to Prusa CORE One Conversion kit Waiting list
and delivered, one conversion kit today ordered 31.1 , now the fun part to blow up the mk4s and make it to Core one. so now that is on we can start a core one -S uppgrade list 😉 🤣 and start wait for that.
RE:
I just tore down my Mk4S last night. It went pretty quickly, and tonight I'll continue with the Core One assembly. It feels weird not having a printer in the meantime, but I have a few local friends who could print me something if needed. 🙂
-J
RE: MK4S to Prusa CORE One Conversion kit Waiting list
Printer was supposed to be shipped 08/07/25 - 14/07/25.
But got picked up today by the freight company. 😀
RE: MK4S to Prusa CORE One Conversion kit Waiting list
I think a lot of the order are just going up by a day on the projected level ship date every day.
--------------------
Chuck H
3D Printer Review Blog
RE: MK4S to Prusa CORE One Conversion kit Waiting list
Build time much longer and not that easy at all. (>3 days for the part 1 to next rider assembly)
Can't stress it enough, oder some fragile spare parts in advance like extruder Thermistor
BW
Sascha
RE: MK4S to Prusa CORE One Conversion kit Waiting list
Looking at the assembly manual, I don't really see the reason to why there would be any stress or force put to the thermistor cables that could make it break?
Don't really see any difference to the build of the MK4/MK4s
RE: MK4S to Prusa CORE One Conversion kit Waiting list
Not problem with assembly at all. It took me about 3 evenings in total with Mk4s disassembly but I took my time and was checking everything twice. Zero problems with starting up and belt tensions at all. No problems with printing at all. Im happy about Core One conversion.
RE: MK4S to Prusa CORE One Conversion kit Waiting list
done and done, yes better to take the time and not rush it, less risk for mistakes, first day/evening for disassembly, and assembly spread over next 2 days.(a lot of running, had parts spread out on the floor in one room and did the assembly in a other room)
and at same time I changed from 0.4 cht to 0.4 obxidian nozzle, did just run first testprint without problems, so now to decide what to do with the filterunit do not really like their placement for it
RE: MK4S to Prusa CORE One Conversion kit Waiting list
Same, I have no idea what could you possibly do to damage it.
RE: MK4S to Prusa CORE One Conversion kit Waiting list
Frustrating development
Most likely my fould, but left an right front panel (document 4 of assembly instructions) do not fit.
Worst case, baseplate was not within specifics
I am getting to old for this
BW
Sascha
RE: MK4S to Prusa CORE One Conversion kit Waiting list
They do fit. Don’t tighten the screws until all of them will be at their place that’s 1st. 2nd maybe you will have to lift whole xy gangry a little bit up on the Z bearing rods. I had this siatuation that I had to move it up like 0.1mm to make the screws fit in their places but it’s not a big deal just lose 2 screws on the brackets, move the gantry up until holes will line up and tight screws back.
Frustrating development
Most likely my fould, but left an right front panel (document 4 of assembly instructions) do not fit.
Worst case, baseplate was not within specifics
I am getting to old for this
BW
Sascha