Prusa Upgrade Kit - MK3S+ to MK3.9
or 4 payments of $260.00 with
Info
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Your order will be shipped by the most economical option, with online tracking. Delivery is usually 2-7 business days.
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- Free pick-up from '781 High St, Reservoir VIC 3073', between 9am and 6pm, Mon-Fri
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Prusa MK3S+ to MK3.9 Upgrade Kit
The MK3.9 upgrade is almost everything from the MK4 excluding the XYZ motors. The Nextruder motor is included in this kit.
Please note that this product is supplied as a kit, which means that assembly is required. The kit includes all the necessary components, except the printed parts (however the filament required is provided), to assemble the product yourself. With the provided instructions and guidance, you can enjoy the process of building your own printer and gain a deeper understanding of its inner workings. Get ready for a hands-on experience and the satisfaction of completing the assembly to bring your printer to life.
Take a look at the manual before you buy to see the assembly process.
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.
Which PSU does your printer have?
- Black PSU - you are all good
- Silver PSU - contact us to customise this kit
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 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
- Expansion joints for Heatbed
- New belts for X & Y axes
- Fasteners and other accessories
- New rods and bearings for Z axis
- 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/Z motors
- X/Y rods and bearings
MK3S/+ Upgrades Comparison
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 220 mm | 9.84 x 8.3 x 8.6 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 |
(51190)
| SKU | 51190 |
| Brand | Prusa |
| Shipping Weight | 4.4000kg |
| Shipping Width | 0.250m |
| Shipping Height | 0.170m |
| Shipping Length | 0.440m |
| Shipping Cubic | 0.018700000m3 |
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