How to print the R4PTOR-Mk3 (Shielded)

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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

There are two “All-In-One” Bambu Studio Profiles created for this model:
– R4PTOR-Mk3-Shielded [MORETHAN3D – H2D Profile] – 0.4 Nozzle
This profile contains all parts that are recommended to print with a standard 0.4mm Nozzle

– R4PTOR-Mk3-Shielded [MORETHAN3D – H2D Profile] – 0.2 Nozzle
This profile contains all parts that are recommended to print with a 0.2mm (or 0.25mm) Nozzle

It 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
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.
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.
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,
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:

5mm dia x 3mm thick N42 Neodymium magnets (LINK) | Qty: 40-off
3mm dia x 2mm thick N42 Neodymium (LINK) | Qty: 2-off
Super glue (LINK) | Qty: 1 bottle

STEP 1: Prepare the original R4PTOR-Mk3 model for upgrade

Remove the following parts from the original R4PTOR-Mk3 model:

LOX Turbopump Assembly
CH4 Turbopump Assembly
Valve Assembly (Front)
Valve Assembly (Back)

Leave the LOX Turbopump Top Plate aside as this part will be reused in the R4PTOR-Mk3 Shielded

STEP 1

STEP 02: Assemble the LOX Turbopump Assembly (Shielded)

Parts required (refer to the photos below)

1x LOX Turbopump Top Plate from STEP 01 (a)
1x LOX Turbopump Main Body (Shielded) (b)
8x LOX Turbopump Oxygen Valve (Shielded) (c)
1x Valve Assembly Detail 1 (Front_Shielded) (d)
1x Valve Assembly Detail 2 (Front_Shielded) (e)
3x Locating Pin (f)
1x Magnets (3mm dia x 2mm thick) (highlighted in RED)
29x Magnets (5mm dia x 3mm thick) (highlighted in RED)

Assembly process

STEP 2a: Glue 18x magnets (5mm dia x 3mm thick) into their locations on the top (x3), bottom (x5), and sides (x10) of the LOX Turbopump Main Body (Shielded)

IMPORTANT: Similar to the LOX Turbopump Main Body from the base model, there are 2x magnets on the sides of the LOX Turbopump Main Body (Shielded) 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 2b: Glue 8x magnets (5mm dia x 3mm thick) into the bottom of the Oxygen Valves (Shielded) (1 magnet each)
STEP 2c: Glue 1x magnet (5mm dia x 3mm thick) into its location at the end of Valve Assembly Detail 1 (Front_Shielded). Please note that this magnet slightly protrudes out of the hole (about 1.5mm)
STEP 2d: Glue 2x magnet (5mm dia x 3mm thick), and 1x magnet (3mm dia x 2mm thick) into their locations on the top and bottom of Valve Assembly Detail 2 (Front_Shielded)
STEP 2e: Assemble the LOX Turbopump Top Plate, Main Body, Oxygen Valves, Valve Assembly Details 1 & 2 together
STEP 2f: Insert 3x Locating Pins into their locations on the bottom of the LOX Turbopump Assembly (Shielded)

STEP 2a

STEP 3: Assemble the CH4 Turbopump Assembly (Shielded)

Parts required (refer to the photos below)

1x CH4 Turbopump Main Body (Shielded) (a)
1x CH4 Turbopump Small Plate (b)
1x CH4 Turbopump Top Plate (Shielded) (c)
1x Fuel Inlet Valve (Shielded) (d)
1x Valve Assembly Detail 1 (Back_Shielded) (e)
1x Valve Assembly Detail 2 (Back_Shielded) (f)
3x Locating Pin (g)
1x Magnets (3mm dia x 2mm thick) (highlighted in RED)
11x Magnets (5mm dia x 3mm thick) (highlighted in RED)

Assembly process

STEP 3a: Glue 6x magnets (5mm dia x 3mm thick) into their locations on the bottom (x5), and side (x1) of the CH4 Turbopump Main Body (Shielded)
STEP 3b: Glue 2x magnets (5mm dia x 3mm thick) into their locations on each end of the Fuel Inlet Valve (Shielded)
STEP 3c: Glue 1x magnet (5mm dia x 3mm thick) into its location at the end of Valve Assembly Detail 1 (Back_Shielded). Please note that this magnet slightly protrudes out of the hole (about 1.5mm)
STEP 3d: Glue 2x magnet (5mm dia x 3mm thick), and 1x magnet (3mm dia x 2mm thick) into their locations on the top and bottom of Valve Assembly Detail 2 (Back_Shielded)
STEP 3e: Glue the CH4 Turbopump Small Plate, and Top Plate (Shielded) to the CH4 Turbopump Main Body (Shielded), and then assemble the Fuel Inlet Valve (Shielded), Valve Assembly (Back) Detail 1 & 2
STEP 3f: Insert 3x Locating Pins into their locations on the bottom of the CH4 Turbopump Assembly (Shielded)

STEP 4: Assemble the R4PTOR-Mk3 (Shielded)

Parts required (refer to the photos below)

1x Original R4PTOR-Mk3 model from STEP 1 (a)
1x LOX Turbopump Assembly (Shielded) from STEP 2 (b)
1x CH4 Turbopump Assembly (Shielded) from STEP 3 (c)

Assembly process

STEP 4a: Install the LOX Turbopump Assembly (Shielded) from STEP 2 to the original R4PTOR-Mk3 model
STEP 4b: Install the CH4 Turbopump Assembly (Shielded) from STEP 3 to the original R4PTOR-Mk3 model

And that’s it! Congratulations, you have completed your 1:8 R4PTOR-Mk3 (Shielded) model!