MK3S Upgrade kit is HERE!!!!  

Re: MK3S Upgrade kit is HERE!!!!

MK3S Upgrade kit is HERE!!!!

or is it?! They just yesterday changed the leadtime from 5 weeks to 3 month?

I'm not a person that moans about long delivery times but im getting really frustrated on this one.

Re: MK3S Upgrade kit is HERE!!!!

Why do you find this strange? I ordered a few minutes after they put it online and got it a week ago...
I think that they underestimated order expactancy (again)...

Re: MK3S Upgrade kit is HERE!!!!

I ordered mine within minutes of the announcement as well and it still shows backorder. These guys underestimate a lot. It will change my purchase strategy with them.

Re: MK3S Upgrade kit is HERE!!!!

I ordered mine within minutes of the announcement as well and it still shows backorder. These guys underestimate a lot. It will change my purchase strategy with them.

It has already changed mine. I ordered an SL1 on release day for 'first units will ship in December' then thought better of it and got a refund. If I hadn't PR would have had over £1,600.00 of my money since then - and those printers never shipped. It is now the end of March and a production machine still hasn't been despatched. That would have been a six month interest free loan to them. I'm not doing that any more. I will buy something when they can supply it in future.

Re: MK3S Upgrade kit is HERE!!!!

I ordered mine within minutes of the announcement as well and it still shows backorder. These guys underestimate a lot. It will change my purchase strategy with them.

It has already changed mine. I ordered an SL1 on release day for 'first units will ship in December' then thought better of it and got a refund. If I hadn't PR would have had over £1,600.00 of my money since then - and those printers never shipped. It is now the end of March and a production machine still hasn't been despatched. That would have been a six month interest free loan to them. I'm not doing that any more. I will buy something when they can supply it in future.

Be careful not to insult the true die hard Prusa fans here. They dont like when we speak bad about their leader. I cancelled my order, and ordered from China. I bought 3 MK3s kits for the price of one here . That way, even if one or even two are bad, i have one that works when i need it. Not when the almighty Prusa gods determine when to ship it to me.

I ordered an MMU2s kit from China, i changed all the bearings with high end ones and ordered an Original prusa control board. No six month wait for me while they do what they want with my money making interest in their accounts.

Every problem has a solution. Either you wait like a sheep, or you get what you need from people whom actually get it to you on time. You may not get the Prusa "quality", but if you are a tinkerer, you can make anything work if you know what you are doing.

When enough people wise up, and stop blindly sending money to a company that refuses to grow up and expand as needed, then they will start treating their clients better.

Until then, nothing will change.

Re: MK3S Upgrade kit is HERE!!!!

My upgrade from standard i3 MK3 to i3 MK3S arrived, something like a month after I ordered, and I finally got around to beginning the modification. Guess what? All the printed parts in the upgrade itself as well as the spares I ordered were the old parts. I think the other parts are okay, but I haven't checked closely. I see two sets of magnets, and think it likely that the new electronics are what they are supposed to be, but all the plastic parts were old, not the new design.

That leaves me with a disassembled printer. I can either re-assemble it old-style so that I can print, provided I un-change the new design PTFE tube I already installed, or I can wait until the new parts arrive. I assume I'll be at the top of any list for such parts, but there will still be a delay.

And I had to take a photo before the Chat guy would agree to send me the proper parts. Most of the folks here probably exchange photos with their computers readily and frequently. I don't. Hook up the phone to the computer with a USB cable, find the photo, put it on the computer. Which really only proves I had old parts around, not that I was shipped the wrong stuff. I suppose there was some chance I had the new parts and just didn't understand, but that seems to me like a pretty long shot. But no photo, no further Chat.

I better really like the modification....

Mike

Re: MK3S Upgrade kit is HERE!!!!

Out of curiousity, when did your MMU2S upgrade arrive?

It still hasn't. I printed the pieces for the MMU2S upgrade and did it myself.

Re: MK3S Upgrade kit is HERE!!!!

I am also still waiting for delivery. Ordered on 18th of February. After contacting the support last week they said that it will still take another 2 weeks. So hopefully it will arrive in May.

Very poor planing.

RE: MK3S Upgrade kit is HERE!!!!

My MK3 to MK3S extruder kit arrived. It took an evening to make the switch. 3 weeks later: outcome and thoughts:

1. The new extruder works really well for flexible filaments. I have not had a single jam since making the change

2. Printing cheap Amazon PETG seems to work better. Fewer (no) boogers or time wasted cleaning goo off the nozzle 

3. There are no apparent other printing-related benefits. Quality is good - but it's always been good, so no change there

Observations

1. The instructions were easy to follow and there were plenty of spare parts in the kit, so I have left over pieces

2. Setting up the cooling fan was fiddly - it wants to point too high, not directly at the printer nozzle

3. The heatbed plug screw catches on the heater cable - needs trimming. This was in the instructions and so not unexpected, but it's a pain in the ass.

4. The new bed leveling calibration happens about 2cm to the left of the old location, which makes it almost off the bed. I have no idea why this happens. Home has not moved

5. The old nylon filament in the wire bundle is too short for the new setup. Not clear why.

6. Turning the fan to 100% sends the extruder into thermal runaway. Max fan is 70% and so I need to change all of the pre-set profiles to remove >70% fan settings.

Bottom line - well worth the time to upgrade and critical if you are printing flexibles.

RE: MK3S Upgrade kit is HERE!!!!

Posted by: doug.b5

6. Turning the fan to 100% sends the extruder into thermal runaway. Max fan is 70% and so I need to change all of the pre-set profiles to remove >70% fan settings.

 

I noticed when putting my upgrade kit together that the nozzle for the part cooling fan seems to direct an awful lot of the cooling air flow directly on the front of the heater block instead of ducting the air to the nozzle level. I haven't had any problems with thermal runaway, but I use a silicone sock. I've been using the silicone sock since before the mod, and I haven't tried experimenting by taking the sock off, so I can't say for sure that the sock is reducing the cooling of the heater block itself, but it seems like a good hypothesis.

RE: MK3S Upgrade kit is HERE!!!!

the mesh calibration moved so the PINDA is over the calibration points, so it moves left by the nozzle to PINDA spacing

RE: MK3S Upgrade kit is HERE!!!!

The wait gets longer every week.... 😐