Same Day Dispatch
Description
This is the full upgrade that also contains the MK4’s new X/Y precise motors (400 steps, 0.9°per step). It’s the most expensive of all three, but last time you voiced your interest in a full MK2->MK3 upgrade pretty strongly, so we decided to give you a full MK4 upgrade as well. :-)
PLEASE NOTE THAT FREE SHIPPING DOES NOT APPLY TO THIS ITEM.
If you require the printer built and tested please contact us for pricing!
If you are a school, university or other wanting to purchase in bulk or more then what is currently listed please contact us to arrange a bulk shipment as we have access to additional printers.
Before you order the upgrade, please check which PSU your printer came with and which version of the heatbed connector is installed. This is important for correct compatibility with the upgrade. Depending on the selected options, we can send you additional components to ensure compatibility with the upgrade.
Which PSU does your printer have?
- Black PSU - you are all good
- Silver PSU - you will need to add a compatible wiring harness or a black PSU (in the configuration box above)
How many screws does your heatbed have?
- 2+3 screws (power cable connected with screws) - you are all good
- 2+1 screws (power cable soldered) - replacing the bed will be necessary
This product is supplied as a kit - you must assemble it yourself!
Printed parts are NOT included! Please print them before you disassemble your MK3S/+! The filament is included in the upgrade package.
Important: The black injection-molded spool holder is not part of the upgrade package. If your printer didn't come with it (early revisions of MK3), you can purchase it here.
Here is a closer explanation of the difference between the MK3.9 and MK4 upgrade packages: the only difference is in the stepper motors. The MK4 uses higher-precision stepper motors that help eliminate VFA (Vertical Fine Artifacts) – these are tiny surface artifacts that are visible if you closely inspect a printed object. In other words, the motors in the full MK4 upgrade are the cherry on top – if you’re chasing the highest possible level of quality, they will come in handy. But the MK3.9 upgrade is very close to that.
This product includes:
- 32-bit xBuddy board (same as MK4)
- Metal xBuddy case (and cover)
- xLCD screen (same as MK4)
- Nextruder parts (including E motor)
- Cables for Nextruder, Heatbed, xLCD
- 10 mm smooth rods (Z-axis)
- X/Y/Z motors
- Expansion joints for Heatbed
- New belts for X & Y axes
- Fasteners and other accessories
- Filament for printable parts
Parts kept from your MK3S/MK3S+
- Frame and extrusions (new MK4 has just a different look)*
- PSU** (same wattage/voltage as MK4)
- Heatbed MK52 24V (thermistor and power cables will be changed) *
- X/Y rods and bearings
*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.
**Please note that silver PSU will require a cable adapter. More information will be provided later.
MK3S/+ Upgrades Comparison
| MK3.5 upgrade | MK3.9 upgrade | MK4 upgrade | |
|
Build volume |
250 x 210 x 210 mm | 9.84 x 8.3 x 8.3 in | 250 x 210 x 210 mm | 9.84 x 8.3 x 8.3 in | 250 x 210 x 220 mm | 9.84 x 8.3 x 8.6 in |
| Mainboard | Custom 32-bit xBuddy electronics with STM32 | Custom 32-bit xBuddy electronics with STM32 | Custom 32-bit xBuddy electronics with STM32 |
| Stepper Drivers | Trinamic 2130 | Trinamic 2130 | Trinamic 2130 |
| Stepper motors | Regular 1.8° X,Y stepper motors | Regular 1.8° X,Y stepper motors | Precise 0.9° X,Y stepper motors (prevents VFA) |
| MMU3 support |
Yes |
Yes |
Yes |
| Extruder electronics |
No |
Custom breakout board for connecting fans, thermistors and other parts. | Custom breakout board for connecting fans, thermistors and other parts. |
| Filament path | Aluminum heatsink, all-metal hotend | Aluminum heatsink, all-metal hotend | Aluminum heatsink, all-metal hotend |
| Drive system |
Direct drive |
Nextruder Planetary Gear System, 10:1 gearbox ratio | Nextruder Planetary Gear System, 10:1 gearbox ratio |
| First layer calibration | Manual adjust Z | Fully automatic (thanks to the Load Cell sensor) | Fully automatic (thanks to the Load Cell sensor) |
| Quick-Swap nozzle system |
No |
Yes |
Yes |
| LCD screen | 3.5″ graphic 65k color screen | 3.5″ graphic 65k color screen | 3.5″ graphic 65k color screen |
| Bed calibration |
Automatic, Mesh Bed Leveling |
Automatic, Mesh Bed Leveling (only on print area) | Automatic, Mesh Bed Leveling (only on print area) |
| One-click Printing |
Yes |
Yes |
Yes |
| Status LEDs |
Yes |
Yes |
Yes |
| Input shaper |
Yes |
Yes |
Yes |
| Filament Sensor |
Yes (IR) |
Yes (built-in Hall sensor) | Yes (built-in Hall sensor) |
| Loadcell sensor |
No |
Yes |
Yes |
| Advanced sensors |
3 thermistors + SuperPINDA, fan RPM sensors |
Filament sensor, Loadcell sensor, Power panic, 4 high-precision thermistors (genuine Semitec) + fan motors RPM monitoring | Filament sensor, Loadcell sensor, Power panic, 4 high-precision thermistors (genuine Semitec) + fan motors RPM monitoring |
|
Power panic |
Yes |
Yes |
Yes |
|
Ethernet connection |
Yes |
Yes |
Yes |
|
Wi-Fi connection |
Yes |
Yes |
Yes |
| Prusa Link | Integrated | Integrated | Integrated |
| Print medium | USB drive / LAN / internet via Prusa Connect | USB drive / LAN / internet via Prusa Connect | USB drive / LAN / internet via Prusa Connect |
|
Firmware update interface |
USB drive | USB drive | USB drive |
• Orders ship out of Townsville, QLD, Australia at 1530.
• Active on Instagram - Tag us or DM us!
• Watch what we are up to on our YouTube Channel!
• Join our Facebook Page for updates and RSFPV news.
• GST Registered.
• Gifts with every order!
• Veteran Owned and Operated
• Defence and Service discounts - Apply Here
• 3D Printing and Custom design – Inquire Here.
• Visit us at our Store and have a yarn.
• Sponsor of Townsville FPVR, Next Level FPV
and the Australian Army Drone Racing Team.
• FPV Drone service, support and repairs.
• Earn points for every $1 spent.
• Buy now and pay later with Zippay, Afterpay, Humm and Laybuy.