In this issue, we will explain how to install OTTO DIY V2 to SANWA JLF-TP-8YT series. I would like to describe the method of installation.

OTTO DIY V2 set contents

It is packed in this way. First, I will explain each part.

2 types of main guides

  1. FD (square)
    FD guides have rounded areas around the corners to make diagonal inputs easier to understand while allowing the top of the actuator to sit comfortably.
  2. BFY(Semi-circular)
    The BFY guide is for those who prefer octagonal guides. This is an excellent alternative than the octagonal guide,  The rounded shape around the corners creates a smooth, semi-circular input feel while recognizing oblique input.

Modular Body

This is the part used to mount the pivot core, with a gold M3 nut embedded.
Enables mounting of Sanwa Denshi TP-MA PCB or HORI Microswitch PCB.

Pivot & Pivot Core

  1. Silicon Grommets
    Reproduces input with easy-to-understand neutral like a corian lever.

    The 60 tension is stiffer and more similar to the Corian lever.

  2. Pivot Core
    Connects to modular body.
    This is interchangeable with V5 and V1 Teflon cores.

  3. Core Cover
    Covered over the top of the pivot core, theIt is used to connect the flat iron plate JLF-P-1.
    This part is for V2 only. V5 and V1 are not included.

  4. Spring
    NormalComes with softer than spring JLF-SP.
    V2 is a silicone grommet that increases the stiffness of the input, so if you feel it is too stiff, you can use this one.

Actuators & Screws

  1. 12mm, 12.5mm, 13mm oversized actuators
    Actuators are used to actuate each microswitch plunger. 12.5mm and 13mm actuators are designed to shorten the distance between the actuator and the plunger to speed actuation.
  2. 2mm hexagonal gold thread
    This screw replaces the existing screw used for mounting the Sanwa Denshi P-1 plate or the HoriHayabusa plate. A 2mm hexagonal wrench is required to install the screws.

The following is how to identify the actuator.

There is a hole on the inside, so please check there.

How to install OTTO DIY V2 on Sanwa JLF-TP-8YT series

Prepare JLF-TP-8YT series joystick.

Remove the shaft cover and dust washer.

Start working from the back side.

Main GuideGT-8FRemove the main guide GT-8F.

Remove the switch substrate TP-MA.

Remove the E-ring JLF-E.
To remove the E-ring, refer to the video below. A dedicated tool is best, but you can also use a small flat-blade screwdriver to remove it.

Remove the actuator JLF-P-5.

Remove the spring JLF-SP.

Remove spring stopper JLF-P-6.

Remove the base washer JLF-MW.

Remove the main shaft JL-S9F.

Remove the flat steel plate JLF-P-1. The bolt part is glued on during removal, so it is recommended to warm it up with a heat gun or hair dryer before removal.
Be careful not to lick the screws if you try to remove it as it is.

JLF-TP-8YT series After disassembly

The parts disassembled up to this point are the parts used in OTTO DIY V2 on the left, and the parts not used on the right.
Assemble OTTO DIY V2.

Assemble the OTTO DIY V2 grommet core.
Select a tension of 60 for firmness or 40 for softness.

With the OTTO DIY V2 Replacement Silicone Insert 2 Kit (sold separately)
50 or 70 can also be selected.
You can also choose The replacement special grommet core is further fitted with silicone so
recommended if you want to make neutrality even easier to understand.

The grommet core is assembled with the pivot core as shown in the photo.

Fit the pivot core into the modular body.

Fit the pivot core, cover the core with the core cover from the receiver, and prepare the modular body and screws.

Fit the flat iron plate JLF-P-1.

Fasten the gold screws with a 2 mm hex.

Prepare spring stopper JLF-P-6.


Install spring stopper JLF-P-6.

Prepare the springs supplied with JLF-SP or V2, and select 12mm, 12.5mm, or 13mm size actuators.
The choice of the actuator has a great influence on the operating feel.
The larger the size, the quicker and peppier the operation.
If you want to feel the silicone grommet core, use the soft V2 included spring, and if you value the rebound strength, use the JLF-SP.

Once the actuator is determined, stop the E-ring JLF-E.

Prepare switch substrate TP-MA, FD (square) guide and BYD (semi-circular) guide.

Set the switch substrate TP-MA.

Set the preferred one of FD (square) guide or BYD (semicircle) guide.
The sample image is BYD (semi-circular) guide.

 Install the shaft cover and dust washer.

It's completed. Good job!
Change the settings to suit your preference and the title you play.