How to print the R4PTOR-Mk3
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The STL package of this model includes an “All-In-One” Print Profile created for Bambu Lab H2 Series 3D printers. If you don’t have a H2 Series but any other printers from Bambu Lab, simply load the profile in Bambu Studio and change the printer setting to your printer. If you are new to 3D printing and never use a “All-In-One” Print Profile before, follow this instruction: How to use Bambu Studio’s All-In-One Print Profile
If you don’t have access to any Bambu Lab 3D printers. We recommend you to download Bambu Studio and load our Profile up so you can replicate the print settings that we use for each part of the model in your own slicer. Most parts of the model can be printed with a standard 0.4mm Nozzle. However, to achieve the optimum result for parts with small details, we strongly recommend using a 0.2mm (or 0.25mm) Nozzle
Please note: The STL for each part was saved in the recommended orientation to print on FDM printers. Hence, when you load the STL in your slicer software, you don’t need to orientate them again, unless you want to try to print them in a different orientation.
Below are some tips
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There are two “All-In-One” Bambu Studio Profiles created for this model:
– R4PTOR-Mk3 [MORETHAN3D – H2D Profile] – 0.4 Nozzle
This profile contains all parts that are recommended to print with a standard 0.4mm Nozzle– R4PTOR-Mk3 [MORETHAN3D – H2D Profile] – 0.2 Nozzle
This profile contains all parts that are recommended to print with a 0.2mm (or 0.25mm) NozzleIt is strongly recommended that you use the correct Nozzle size to print the parts to achieve the optimum result. You can print all parts with a 0.4mm Nozzle if you don’t have a 0.2mm (or 0.25mm) one, but some parts won’t look as good as they should
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All magnet holes can be printed without support regardless of their positions/orientations on the model. Please don’t generate support for these holes (unless you really need to). Otherwise, you may struggle to remove support inside the holes due to restricted access.
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This model is designed in such a way to allow you to assemble and disassemble the model into piece part level, because almost every part is held together by magnets. However, if you prefer to glue everything, or some parts, together, that’s also fine – but please be aware that if you do, it may be difficult to update the model later on.
If you decide to glue all parts (or some parts) together rather than using magnets, please print and use the Locating Pins for alignment.
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There is an STL in folder ‘STEP 01’ called ‘R4PTOR-Mk3 Assembly’
If you load this file in your slicer, you’ll see the fully assembled R4PTOR-Mk3 model. This will help you understand where each and every part is fitted on the model. -
We highly recommend using “Support for PLA” for this model. This will ensure the best finish of the parts once support is removed. Not every part will need this,
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At STEP 7, to print the Nozzle, you can either:
– Generate “Tree support” in your slicer
– Use our Custom Support (however, this needs to be used in conjunction with “Support for PLA“).To use Custom Support:
STEP 1: Load all 3 parts (Nozzle, Nozzle Custom Support, and Nozzle Custom Support Interface) into your slicer.
STEP 2: Assign the Nozzle and Nozzle Custom Support to PLA
STEP 3: Assign the Nozzle Custom Support Interface to “Support for PLA“ -
This model is designed at 1:8 scale, hence, it is recommend that you print at this scale to achieve the highest quality. However, if you decide to print the model at a smaller scale, please be aware that the magnets we selected for this model will no longer fit and you will have to find smaller magnets to fit, or glue the parts together.
How to assemble this model?
So now you’ve got all your parts printed? Great! Let’s assemble the model. I’ll take you through the assembly process step by step but before that, you need to purchase some items:
STEP 1: ‘Dry’ assemble the model
At this step, all I want you to do is try to stack all the parts together to get a good understanding of where they are located. Because there are a lot of magnets you need to fit during the assembly process, doing this first step will give you an idea of how to fit the magnets in each part correctly. Please use the files in STEP 01 folder, and the photos below if required.
STEP 02: Assemble the LOX Turbopump
Parts required (refer to the photos below)
- 1x LOX Turbopump Top Plate (a)
- 1x LOX Turbopump Main Body (b)
- 8x LOX Turbopump Oxygen Valve (c)
- 30x LOX Turbopump Nut (d)
- 3x Locating Pin (e)
- 29x Magnets (5mm dia x 3mm thick) (highlighted in RED)
Assembly process
- STEP 2a: Glue 3x magnets (5mm dia x 3mm thick) into their locations on the bottom of the LOX Turbopump Top Plate
- STEP 2b: Glue 18x magnets (5mm dia x 3mm thick) into their locations on the top (x3), bottom (x3), and sides (x12) of the LOX Turbopump Main Body
IMPORTANT: There are 4x magnets on the sides of the LOX Turbopump Main Body that need to be pushed all the way in (see pics below). The top of each magnet should sit 1.5mm below the top of the hole.
- STEP 2c: Glue all 30x LOX Turbopump Nuts to the main flange of the LOX Turbopump Main Body
- STEP 2d: Glue 8x magnets (5mm dia x 3mm thick) into the bottom of the Oxygen Valves (1 magnet each)
- STEP 2e: Assemble the LOX Turbopump Top Plate, Main Body, and Oxygen Valves together
- STEP 2f: Insert 3x Locating Pins into their locations on the bottom of the LOX Turbopump Assembly
STEP 3: Assemble the CH4 Turbopump
Parts required (refer to the photos below)
- 1x CH4 Turbopump Main Body (a)
- 1x CH4 Turbopump Small Plate (b)
- 1x CH4 Turbopump Top Plate (c)
- 1x Fuel Inlet Valve (d)
- 3x Locating Pin (e)
- 10x Magnets (5mm dia x 3mm thick) (highlighted in RED)
Assembly process
- STEP 3a: Glue 8x magnets (5mm dia x 3mm thick) into their locations on the bottom (x3), and side (x5) of the CH4 Turbopump Main Body
IMPORTANT: There is a cluster of 4x magnets on the side of the CH4 Turbopump Main Body that need to be pushed all the way in (see pics below). The top of each magnet should sit 1.5mm below the top of the hole.
- STEP 3b: Glue 2x magnets (5mm dia x 3mm thick) into their locations on each end of the Fuel Inlet Valve
- STEP 3c: Glue the CH4 Turbopump Small Plate, and Top Plate to the CH4 Turbopump Main Body, and then assemble the Fuel Inlet Valve
- STEP 3d: Insert 3x Locating Pins into their locations on the bottom of the CH4 Turbopump Assembly
STEP 4: Assemble the Combustion Chamber
Parts required (refer to the photos below)
- 1x Combustion Chamber (Top) (a)
- 1x Combustion Chamber (Bottom) (b)
- 6x Locating Pin (c)
- 13x Magnets (5mm dia x 3mm thick) (highlighted in RED)
Assembly process
- STEP 4a: Glue 6x magnets (5mm dia x 3mm thick) into their locations on the top (x3) and bottom (x3) of the Combustion Chamber (Top). Then insert 6x Locating pins into the remaining holes.
- STEP 4b: Glue 7x magnets (5mm dia x 3mm thick) into their locations on the top (x3), bottom (x3), and side (x1) of the Combustion Chamber (Bottom).
- STEP 4c: Install the Combustion Chamber (Top) and (Bottom) together
STEP 5: Assemble the CH4 Preburner
Parts required (refer to the photos below)
- 1x CH4 Preburner (a)
- 1x Magnets (3mm dia x 2mm thick) (highlighted in RED)
- 4x Magnets (5mm dia x 3mm thick) (highlighted in RED)
Assembly process
- STEP 5a: Glue 4x magnets (5mm dia x 3mm thick) into their locations on the top (x3) & bottom (x1) of the CH4 Preburner
- STEP 5b: Glue 1x magnets (3mm dia x 2mm thick) into its location on the side of the CH4 Preburner
STEP 6: Assemble the Hot Gas Manifold
Parts required (refer to the photos below)
- 1x Hot Gas Manifold (a)
- 12x Magnets (5mm dia x 3mm thick) (highlighted in RED)
Assembly process
- STEP 6a: Glue 6x magnets (5mm dia x 3mm thick) into their locations on the top of the Hot Gas Manifold. Ensure that these magnets are aligned with the ones at the bottom of the LOX and CH4 Turbopump Assemblies
- STEP 6b: Glue 6x magnets (5mm dia x 3mm thick) into their locations on the bottom of the Hot Gas Manifold. Ensure that these magnets are aligned with the ones at the top of the Combustion Chamber and CH4 Preburner.
STEP 7: Assemble the Nozzle
Parts required (refer to the photos below)
- 1x Nozzle (a)
- 1x LOX Turbopump from STEP 2 (b)
- 1x CH4 Turbopump from STEP 3 (c)
- 1x Combustion Chamber from STEP 4 (d)
- 1x CH4 Preburner from STEP 5 (e)
- 1x Hot Gas Manifold from STEP 6 (f)
- 3x Locating Pin (g)
- 1x Magnets (3mm dia x 2mm thick) (highlighted in RED)
- 4x Magnets (5mm dia x 3mm thick) (highlighted in RED)
Assembly process
- STEP 7a: Glue 4x magnets (5mm dia x 3mm thick), and 1x magnet (3mm dia x 2mm thick) into their locations on the top of the Nozzle. Then insert 3x Locating pins into the remaining holes.
- STEP 7b: Assemble all the main assemblies from STEP 2 to STEP 7
Hint: Use the “Arrow” markings on the parts for alignment. All the “Arrows” should be pointing in one direction – which is the Front of the model
STEP 8: Assemble the Tapoff Film Cooling Pipes
Parts required (refer to the photos below)
- 1x Tapoff Film Cooling Pipe (RH) (a)
- 1x Tapoff Film Cooling Pipe (LH) (b)
- 1x Sub-assembly from STEP 7
Assembly process
- STEP 8a: Install the Tapoff Film Cooling Pipes to the Sub-assembly from STEP 7
Please note: It isn’t required to glue the Tapoff Film Cooling Pipes into either the Combustion Chamber, or the Hot Gas Manifold.
STEP 9: Assemble the Fuel Feed Pipe
Parts required (refer to the photos below)
- 1x Fuel Feed Pipe_1 (a)
- 1x Fuel Feed Pipe_2 (b)
- 1x Fuel Feed Pipe_3 (c)
- 1x Sub-assembly from STEP 8
- 7x Magnet (5mm dia x 3mm thick) (highlighted in RED)
Assembly process
- STEP 9a: Glue 2x magnets (5mm dia x 3mm thick) into their locations on the Fuel Feed Pipe_1
- STEP 9b: Glue 3x magnets (5mm dia x 3mm thick) into their locations on the Fuel Feed Pipe_2
- STEP 9c: Glue 2x magnets (5mm dia x 3mm thick) into their locations on the Fuel Feed Pipe_3
- STEP 9d: Assemble the Fuel Feed Pipe to the Sub-assembly from STEP 8
STEP 10: Assemble the Valve Assembly (Front)
Parts required (refer to the photos below)
- 1x Valve Assembly Detail 1 (Front) (a)
- 1x Valve Assembly Detail 2 (Front) (b)
- 1x Valve Assembly Detail 3 (Front) (c)
- 1x Valve Assembly Detail 4 (Front) (d)
- 1x Valve Assembly Detail 5 (Front) (e)
- 1x Valve Assembly Detail 6 (Front) (f)
- 2x Valve Assembly Detail 7 (Front) (g)
- 1x Valve Assembly Detail 8 (Front) (h)
- 1x Valve Assembly Detail 9 (Front) (i)
- 1x Valve Assembly Detail 10 (Front) (j)
- 1x Valve Assembly Detail 11 (Front) (k)
- 1x Sub-assembly from STEP 9 (l)
- 2x Locating Pin (m)
- 1x Magnet (3mm dia x 2mm thick) (highlighted in RED)
- 5x Magnet (5mm dia x 3mm thick) (highlighted in RED)
Assembly process
- STEP 10a: Glue 1x magnet (5mm dia x 3mm thick) into its location on the bottom of Detail 5. Ensure the magnet is pushed all the way in – the top of the magnet should sit 1.5mm below the top of the hole
- STEP 10b: Glue 2x magnets (5mm dia x 3mm thick) into their locations at the bottom of Detail 8. Please note that these magnets slightly protrude out of the holes (about 1.5mm)
- STEP 10c: Glue 1x magnet (5mm dia x 3mm thick) into its location at the end of Detail 10. Please note that this magnet slightly protrudes out of the hole (about 1.5mm)
- STEP 10d: Glue 1x magnet (5mm dia x 3mm thick), and 1x magnet (3mm dia x 2mm thick) into their locations at the ends of Detail 11. Please note that the 5x3mm magnet slightly protrudes out of the hole (about 1.5mm)
- STEP 10e to STEP 10l: Glue Details 1 to 9 together in the correct order (see pics below). DO NOT glue Detail 10 & 11 to this sub-assembly
- STEP 10m to STEP 10o: Install the Valve Assembly (Front) to the sub-assembly from STEP 9
STEP 11: Assemble the Valve Assembly (Back)
Parts required (refer to the photos below)
- 1x Valve Assembly Detail 1 (Back) (a)
- 1x Valve Assembly Detail 2 (Back) (b)
- 1x Valve Assembly Detail 3 (Back) (c)
- 1x Valve Assembly Detail 4 (Back) (d)
- 1x Valve Assembly Detail 5 (Back) (e)
- 1x Valve Assembly Detail 6 (Back) (f)
- 2x Valve Assembly Detail 7 (Back) (g)
- 1x Valve Assembly Detail 8 (Back) (h)
- 1x Valve Assembly Detail 9 (Back) (i)
- 1x Valve Assembly Detail 10 (Back) (j)
- 1x Sub-assembly from STEP 10 (k)
- 2x Locating Pin (l)
- 1x Magnet (3mm dia x 2mm thick) (highlighted in RED)
- 7x Magnet (5mm dia x 3mm thick) (highlighted in RED)
Assembly process
- STEP 11a: Glue 2x magnet (5mm dia x 3mm thick) into their locations on the side of Detail 1. Please note that these magnets slightly protrude out of the holes (about 1.5mm)
- STEP 11b: Glue 2x magnet (5mm dia x 3mm thick) into their locations on the side of Detail 2. Please note that these magnets slightly protrude out of the holes (about 1.5mm)
- STEP 11c: Glue 1x magnet (5mm dia x 3mm thick) into its location on the bottom of Detail 5. Ensure the magnet is pushed all the way in – the top of the magnet should sit 1.5mm below the top of the hole
- STEP 11d: Glue 1x magnet (5mm dia x 3mm thick) into its location at the end of Detail 9. Please note that this magnet slightly protrudes out of the hole (about 1.5mm)
- STEP 11e: Glue 1x magnet (5mm dia x 3mm thick), and 1x magnet (3mm dia x 2mm thick) into their locations at the ends of Detail 10. Please note that the 5x3mm magnet slightly protrudes out of the hole (about 1.5mm)
- STEP 11f to STEP 11l: Glue Details 1 to 8 together in the correct order (see pics below). DO NOT glue Detail 9 & 10 to this sub-assembly
- STEP 11m to STEP 11p: Install the Valve Assembly (Back) to the sub-assembly from STEP 10
STEP 12: Assemble the Main Fuel Pipe
Parts required (refer to the photos below)
- 1x Main Fuel Pipe (a)
- 1x Sub-assembly from STEP 11 (b)
- 2x Magnet (5mm dia x 3mm thick) (highlighted in RED)
Assembly process
- STEP 12a: Glue 2x magnet (5mm dia x 3mm thick) into their locations on the ends of the Main Fuel Pipe.
- STEP 12b: Install the Main Fuel Pipe to the sub-assembly from STEP 11
And that’s it! Congratulations, you have completed your 1:8 R4PTOR-Mk3 model!
