Other Chassis for KRS Regiis

KR Regiis (2022) Master Chassis

Here is a removable chassis core featuring very nice details, a Crystal Chamber with spinning plasma gate and and covers with hinges to access soundboard and removable battery.



  • Disclaimer

    GOTH-3Designs cannot be held responsible for any mistakes made by DIYers during their install. You must have a good understanding of what you’re doing, of the components used and the safety measures associated to them. Always wear protective gear when working on install (gloves, eye protection, …), GOTH-3Designs cannot be held responsible in case of accident.

  • Note #1

    Always use the smallest wires to make your install easier. There can be big differences between one wire type and another for the same AWG specs. PTFE Wires with the smallest OD are recommended such as those sold at The Saber Armory. A good wire management is also required, routing wires properly helps a lot saving space.

  • Note #2

    These instructions will not cover how to wire the soundboard, make sure to learn how to by reading the manual. We have also typical soundboards wiring available in the Padawan Tutorials. Always test your install along the way! Verifying that everything works after important steps is better than having to dismount everything because something wasn’t wired properly.

  • Note #3

    3D printed parts can have very slight accuracy variations. In some rare cases, some sanding or hole deburring can be required. Additionally, metal parts can arrive a bit bent, but are normally easy to bend back into shape. Consult the FAQ if you encounter issues with parts that cannot be solved easily.

Other Parts Details:

– 3 x 2mmx2mm NeoDymium Magnets
– 10 x 2mmx1mm NeoDymium Magnets

1- Chassis Preparation

  • Step 1 – Prepare the parts.
    Test fitment of the chassis is always important before starting, in order to check that everything fits properly together. Eventually, some parts can need some work like deburring rods holes or to be put back into straight shape is slightly bent.
    Parts weathering can also be done at that step.


    Step 2 – Prepare the rods and tubes
    Cut the rods and tubes.
    2 x 3mmOD tubes with 58mm length
    2 x 4mmOD tubes with 50mm length
    2 x 1mmOD rods with 79mm length
    2 x 1.5mmOD rods with 53mm length
    2 x 1.5mmOD rods with 13mm length
    1 x 1.5mmOD rod with 10mm length

2 – Battery Holder Install

  • Step 3 – 2020 pixels strips
    Mark on the chassis where the first pixel should be, then glue the 2 strips accordingly. It is important to test the strips are working correctly at that step. 


    Step 4 – Tubes install
    Glue the 4mmOD tubes on the chassis cover. Then pass the wires into them.

    Step 5 – Assemble the cover to the battery holder.
    Then glue the 1mmOD rods on the speaker side to secure the assembly.

    Step 6 – Install the negative battery tab, then solder the negative 22awg wire onto it.

    Step 7 – Install the kill switch.

    Step 8 – Install the speaker.
    Then carefully glue the speaker ring onto it.

    – The speaker ring needs too be chamfered in order not to glue on the speaker membrane. An update was made to the design accordingly, but earlier model might still need this.

    – Make sure to test the insertion into the hilt, and check that it slides in properly (the covertec holes might need sanding on the hilt for example)

    Important: the speaker ring is a spacer so that the chassis is secured into the hilt and connects to its upper section. It is not meant to pull the chassis out (the speaker will break).
    Do not pull the chassis from the speaker ring, instead, bump the hilt to slide the chassis out and then extract it pulling from the metal covers.

    Step 9 – Install the positive battery tab.
    Keep the wires well organized, the positive tab will take several wires (Soundboard thru kill switch, pixel main blade strip, Accent 2020 strips and NPXL Crystal pixel for example). The other wires go into the 2 channels on the sides that will host the next 4mmOD tubes.

    Step 10 – Install the battery cover.
    Glue the magnets on the chassis (2mmx2mm) and cover (2mmx1mm).
    Then lock the cover using short 1.5mmOD rods. The cover should sit flat, if not, the tabs holding the cover to the chassis could be bent and need adjustment.

3 – Crystal Chamber

  • Step 11 – Install the Crystal.
    Glue the crystal into its holder. Then glue the 2020 single pixel and wire it (insulate the back of the 2020 pixel to make sure no contact can happen with the wires behind).
    Make sure the crystal holder sits flush on the battery chassis, and test the crystal pixel.

    Step 12 – Install the Crystal Chamber cage with the rods and tubes.
    The cage door needs to be added as that steps as well.
    Glue the rods and tubes to secure everything.

    Step 13 –  Crystal door magnets.
    Check that the magnets fit fine into their slot and then glue the (4 x 2mmx2mm). 

    Step 14 –  Spinning part and motor install.
    Glue the plasma gate on the motor.

    Then first put the plasma spinning gate in the chamber and then assemble the soundboard chassis. The motor will be glued at that point once everything assemble to secure it.

4 – Soundboard Install

  • Step 15 –  Install the soundboard.
    Here is an example of Diagram for ProffieBoard:

    BladeConfig blades[] = {
    { 0,
    WS281XBladePtr<140, bladePin, Color8::GRB, PowerPINS<bladePowerPin2, bladePowerPin3> >(),
    WS281XBladePtr<1, blade2Pin, Color8::GRB, PowerPINS<bladePowerPin4> >(), WS281XBladePtr<10, blade3Pin, Color8::GRB, PowerPINS<bladePowerPin5> >(),
    WS281XBladePtr<4, blade4Pin, Color8::GRB, PowerPINS<bladePowerPin1> >(),
    SimpleBladePtr<CH1LED,NoLED, NoLED, NoLED,bladePowerPin6, -1,-1,-1>(),

    Make sure the wires are well organized on each side of the board so that no wire get in contact with the spinning gate. Update and test the install.

    A short 2020 pixel strip can be added on top of the board.

    Once everything is tested, glue the board into its slot and test again.

    Step 16 –  Install the soundboard cover.
    Glue the magnets on the cover (2mmx1mm) making sure to respect the right polarity with the battery cover. We also add a bit of frosted tape to help light diffusion.

    Install the cover and glue the 1.5mmOD rod to secure it.

    Step 17 – Install the chassis switch (can be main or aux, depending on the needs… for example, proffie can twist activate the blade so that switch can be aux). Then add and glue the last metal ring.

    Step 18 – Install the NPXl + Switches connector.
    Wire the connector then glue it in its slot (remover gel can be used to clean the excess of glue if any on the connector).
    Test again.

5 – Upper Chassis Install

  • Step 19 – Install the NPXL Connector and glue it on the chassis.

    Step 20 – Install the switches

    Step 21 – Install the NPXL + switches Connector

    Step 22 – 2 screws will need sanding in the hilt to clear the blade socket

    Step 23 – Insert the upper chassis. It gets locked using the red button (the smallest switch hole ID goes on the red button side).

    Test the buttons. The plunger length can be adjusted if needed.