MK4 High-Flow Extruder
I purchased the MK3+ to MK4 upgrade and then cancelled my order after watching the YouTube video
If you watch timestamp 5:05 and 32:12, you will hear Joseph Prusa discuss the new High-Flow Extruder coming soon. Joseph plans to upgrade his M3 printer farm to M4s and then upgrade these M4s with the new High-Flow Extruder. If I upgrade to the MK4 now, I will install a new extruder that comes with the kit. I will soon need to purchase the High-Flow extruder and dispose of the new one I just bought with the MK4 upgrade. What exactly is the upgrade path from the MK3S+ to the MK4 (or a new MK4 just purchased) with the High-Flow Extruder that is coming soon? How much will this cost? Extruders are not cheap.
RE: MK4 High-Flow Extruder
It's a high flow nozzle, not a new extruder.
RE: MK4 High-Flow Extruder
This.
It is most likely to be a high flow nozzle with a new firmware, not a complete new extruder assembly.
It's a high flow nozzle, not a new extruder.
--> MK4 - MK4S - MINI+ - MMU3 - Accelerometer Guide - BambuLab A1 Combo <--
RE: MK4 High-Flow Extruder
I have done the same: I initially ordered the MK3->MK4 full upgrade kit and the cancelled it to order a real MK4 kit.
Why ? Because despite the name, the FULL UPGRADE KIT it is not full... 😱
You don't get the new reinforced frame (important for vibration), the new reinforced rods (larger in diameters), and another stronger element on the basement that I do not recall what exactly was. Moreover I would have destroyed my old reliable MK3S to have an MK4 and a box full of MK3 pieces. So for a small amount more I preferred to keep my MK3S+ as it is and have also a new MK4 😊
RE: MK4 High-Flow Extruder
You do get the new 10mm rods as well as the expansion joints for the heatbed ( https://www.prusa3d.com/product/original-prusa-i3-mk3-s-to-mk4-upgrade-kit/). The only thing you don't get is the new frame. The new frame provides no functional advantage according to Prusa.
"*Frame and heatbed are not included upgrade, because replacing these parts brings no funcional advantage and would only increase the price of the upgrade. If for some reason you still want a new frame (it has hexagons on the other side), it will be available on the eshop as a spare part."