Gravity45 Frequently Asked Questions

Gravity45 is a customizable 45-key mechanical keyboard kit.

It is programmable, allowing you to choose and assemble the parts to your liking.

It is ideal for those who like small and cute gadgets and those who want to customize their keyboards freely.

It was created as a derivative of Gravity36 and is characterized by a layout with key blocks divided on the left and right.

The 36-key model has a so-called “30% layout,” which many said is a high hurdle to entry.

The 45-key model has evolved from that user feedback to a 40% layout with one additional row on each side, making it easier to use for more people.

This layout can be used as a 30% layout or as a 40% layout.

Soldering is not required.

It can be used simply by assembling it using a Phillips screwdriver or similar tool.

(A key switch must be provided separately.)

The only tool required for assembly is basically a Phillips-head precision screwdriver.

The following should be prepared as needed

Tools that are useful to have

• Electric precision screwdriver (used for assembly)
• Acrylic sheet anti-static spray
• Precision tweezers (used to attach rubber feet)

Gravity45 is multi-profile and is available with the following four types of key switches

• MX compatible mechanical switches (Cherry MX, Gateron, Kailh, etc.)
• Kailh choc v1
• Kailh choc v2
• Gateron LP 3.0

However, for low-profile key switches, “Low-profile dedicated acrylic set (2 mm thick)” is required.

Low-profile key switches can be used simultaneously with each other, but not with MX compatible switches.

All basic parts are included in the kit, but the key switch and USB cable to connect to a computer must be provided separately.

This kit is a self-made keyboard kit, and there is a large possibility of malfunction due to the buyer’s negligence during assembly.

Therefore, while we will provide minimal support, we basically recommend that you are able to assemble the system yourself.

There is no warranty against damage.

As for screws, spacers, etc., please prepare equivalent items by yourself.

This product is “made-to-order” and takes time from the time payment is completed to the time of shipment.

The following schedule is assumed.

• Press Release Submission｜End of Aug.
• Reservations start｜End of Aug.
• Deadline for pre-order｜End of Sep.
• Product orders｜End of Sept.
• Arrival of goods, inspection and packing｜Early Nov.
• Product Shipping｜Late Nov.

*This does not apply to aluminum cases, which are likely to take longer to manufacture. As for the shipping time of aluminum cases, we are aiming for early January.

Currently, only domestic shipping is available.

Please contact us prior to purchase if you wish to have your order shipped overseas.

We accept returns or exchanges within 14 days of receipt if the product is unopened and unused.

However, pre-assembled products and some custom parts are not eligible.

Please see our Return Policy for details.

Greenkeys does not sell parts in bulk.

We will post the purchase link below, so if you are short and want to purchase additional items, please order them yourself.

• Spacer Silver Color (M2-5mm both female threads)
• Spacer Gold Color (M2-5mm both female threads )｜Hirosuginet
• M2 Screw Silver Color (4mm/5mm) ｜Yuusha Kobo
• M2 screw gold color (4mm/5mm)
• Rubber feet (ø6.4mm X H1.6mm) ｜Amazon

Can be done.

You can order acrylics in the acrylic color of your choice by using Yuja Kobo’s registered data acrylic cutting service.

When ordering, please specify one of the following

• KLEC-02 Gravity-45 – 3mm
• KLEC-02 Gravity-45 – 2mm

For color samples and other information, please visit the Yuja Kobo sales website.

Keyboard Acrylic Plate｜Yuusha Kobo

The acrylic plate included in the package is made of “cast material”. Due to the nature of cast material, the thickness varies from lot to lot. Acrylic plates manufactured by Yousha Kobo are often made of “extruded material”, so the thickness variation is small.

We are very sorry, but this is a specification.

This specification is made because the processing cost would be added if a cutout is added to the acrylic to prevent the key switch from being pulled out.

The specifications are the same for both Low Pro Kit/Hi Pro Kit.

However, as for aluminum case kits with 1.6 mm thick FR4 plates, the keyswitches will not pull out.

Cannot be done.

We only accept the set with the keyboard kit.

Yes, there is.

By using “YUZU Custom Keycaps” with which this site is affiliated, you can create one-of-a-kind original keycaps using your favorite colors, icons, and fonts.

There are two key profiles to choose from: the general Cherry and the KAM profile used in the original kit.

Especially for small keyboards, it is very meaningful to use highly visible original keycaps because different users have different characters and symbols set on the back layer.

The link below is the link to Gravity45. (You can skip the address registration button)

YUZU Custom Keycaps

It is a space language.　It really is.

KAM ASTHA is a keycap designed by keycap designer Dazon.

The theme is the universe, and the virtual language of the universe, ASTHA, is engraved on it.

We also have a keycap set just for space language, if you would like to consider this as well.

It’s a “key that can be anything.”

Small keyboards have very different keymaps for different users.

The most varied of these are the modifier keys, such as shift and command.

Therefore, there is a circumstance in which we dare to include “universal keys” that do not have specific characters engraved on them, so that there will be no problem no matter which key is placed where.

Use ” Remap” to change the keymap.

Access Remap using your browser (Chrome recommended) with Gravity45 connected via USB.

Click on “Customize Keyboard.”

Click “+KEYBOARD”.

To allow HID devices to connect, select Gravity45 and click “Connect”.

For each key, drag and drop to the area where you want to change the key at the bottom, or edit the key directly.

When finished, press the “Write” button in the upper right corner to complete the writing.

Can be done.

For “Simultaneous Presses,” enter the Keycode you want to press at the same time from the settings screen for each key, and check the Modifiers keys you want to press together.

When you want to perform a simultaneous “copy” press in Windows with one action, set as follows.

MOD-TAP is a mechanism that changes the behavior of keys according to the time it is pressed.

One key can have two functions: a long press will function as Shift, a single press will type “.”, and so on.

To set, simply select the respective key from “HOLD/TAP” in each key setting.

This can be achieved by using the macro function.

It can be set from the “Macro” pencil mark at the bottom of the FUNCTION tab.

To be honest, I can’t even keep track of it lol.

Everything is based on the QMK system, so if you are interested, here is a list of key codes.

Basic Keycode｜QMK Firmware

This is because the mode is set to “English(US)”.

The usual combinations are available when you select Japanese.

The factory default keymap follows the Windows-based JIS 40% layout.

Change according to your preference.

If you would like to use Japanese layout, please change the following part of Remap to “Japanese”, and then setup and use it according to the use of OS described below.

You’ll just have to get used to it lol.

First, before learning the keymap, it is difficult to type on a split keyboard without learning touch typing starting from the home position with the default 65% layout.

Kawamura

This is the main sequence for Gravity 36 and 45.

It is better to start with the basics.

On top of that, if you can’t remember the keymap…

In my case, I was typing normally, and each time I typed a character I couldn’t type (symbols placed on the back layer), I looked at the cheat sheet I had printed.

With trial and error and repetition, you can learn surprisingly quickly.

When learning numbers, it is quite easy to remember them with a set of fingers.

• Left pinky 1
• Left hand ring finger – 2
• Left hand middle finger – 3
• Left index finger – 4/5
• Right index finger – 6/7
• Right hand middle finger – 8
• Right hand ring finger – 9
• Right hand pinky – 0

There is no particular specification for USB cables.

Both Type-C to Type-C and Type-C to Type-A are confirmed to work.

In the unlikely event that input is not possible, try connecting with a Type-C to Type-A cable.

Note, however, that the keyboard side of the USB cable must be “I-shaped (straight)” or else it will not stick.

Presets are available and can be easily changed by following the steps below.

Select “Save/Restore a keymap” from the right side of Remap’s keymap change screen.

Select the keymap profile you wish to set

Press the “flash” button to reflect keymap changes.

Kawamura

Remember to press the “Write” button to reflect the changes in the keymap!

Since the Remap display is basically a Windows display, the “BASIC” tab does not have them.

Instead, the following is addressed.

• Option→Alt
• Command→Win

Please follow the procedure below.

The same applies if you wish to switch to a Japanese-language layout.

手順を表示する▷▷

あわせて読みたい

OSごとの入力様式の特徴と英語配列と日本語配列の切り替え方【Windows /Mac】 英語配列のキーボードを接続しても印字されている通りに出力されないんだけど… おそらく、Windowsを使っている方が初めて英語配列のキーボードを使った際に起こることで…

Click Settings→Keyboard→Change Keyboard Type

Launch the Keyboard Setup Assistant and click “Continue

Press the button in the appropriate position twice → Switch to the following screen

Select ANSI and “reboot”.

However, this method is not perfect.

Basically, when you connect your own keyboard to a Mac, it is recognized as ANSI (English alignment).

Therefore, if you want to use it as a Japanese layout on macOS without fail, use ” Karabiner-Elements “.

If you apply this patch, it is forced to be recognized as JIS.

Please follow the steps below.

For more information, please also see this content.

あわせて読みたい

OSごとの入力様式の特徴と英語配列と日本語配列の切り替え方【Windows /Mac】 英語配列のキーボードを接続しても印字されている通りに出力されないんだけど… おそらく、Windowsを使っている方が初めて英語配列のキーボードを使った際に起こることで…

Press the switch on the left side of the RP2040-zero on the surface → Press the switch on the right side without releasing it → Release both switches while holding them down

This procedure can be reset.

After the reset, the device will be in a “blank state without even firmware”.

To write firmware, drag and drop firmware created by yourself or by takashicompany onto the “RP_RPI” drive.

green_keys_gravity_45_via_takashicompany.uf2

They are distributed at the following locations

green_keys_gravity_45_via_takashicompany.uf2

Since conductivity testing of the circuit board is performed on all products at the time of shipment, unless the board is damaged during transportation, it is most likely due to user factors.

First, check the following, and then try to see if the relevant key responds in Remap’s test matrix mode.

• Is the keyswitch firmly engaged? ｜When the key switch is inserted, one of the terminal legs may be bent and the key switch may not energize. Pull out the key switch and check the terminal. If the terminal is bent, straighten it with tweezers or radio pliers and reinsert it.
• Are there any defects in the key switches themselves? ｜There is a possibility that a certain percentage of the keyswitches are “defective” and do not respond. If the keyswitch is fitted to another part of the keypad and it responds, the keyswitch itself may be defective in the initial stage. Please replace it with an available key switch.
• Is the USB cable plugged in?｜No signal will be input to the PC unless the USB cable is plugged in.
• Is the socket floating? ｜In some cases, the socket soldered to the board may come off when the keyswitch is forcibly fitted into the socket. In such cases, the socket loses contact with the board and cannot be input. If the socket is simply disconnected from the board, it can be fixed by soldering, but if the entire copper foil of the board circuit is disconnected, it may be difficult to repair.

Acrylic plates are prone to dust adhesion due to their characteristics.

Applying an anti-static spray ( such asPolycare orHishikote A ) before assembly will prevent adhesion to some extent.

Acrylic plates are very vulnerable to scratches, which can occur during the manufacturing process and when removing the protective sheet.

All detached or damaged sheets are removed during inspection, but there is a limit to inspecting for cracks and other defects because they cannot be seen under the peeled paper.

Please note that we are not responsible for minute scratches or cracks.

A soft cloth dampened in hot water of about 60°C (140°F) may be applied to the area in question to float the glue and then wiped off.

It can be removed well with eyeglass wipes, Kyon chamois, or microfiber cloths.

We do not recommend tissues, etc., as the fibers adhere to them due to static electricity.

Similarly, kimwipes are prone to fiber adhesion.

There is a method of applying a liquid glass coating agent.

Normal acrylic scratches at a hardness of about 2H, but this method increases the strength to about 9H.

I am trying this.

Gravity45 does not use any sound-absorbing materials to emphasize its looks.

Therefore, some keyswitches may be noisy when keystrokes are struck.

We suggest the following measures

• Use quiet switches｜The recommended solution is to use quiet keyswitches. Most of the recent silent switches are pre-lubricated and almost noiseless. Although there are personal differences in weight preference, Kailh DeepSea Silent Islet is suitable for everyone.
• Stretching the key switch pad behind the switch plate｜Applying a silent key switch pad to the back of an acrylic key switch plate is one method. However, the transparency of the acrylic may be lost.

Although this is a rare case, if you are using Windows and your keyboard is recognized as an English keyboard, some of the functions of the Japanese IME may not work.

In fact, I was able to reproduce it in my environment.

However, this situation is limited and is reproduced when using system applications such as folder renaming.

In that case, you can switch without problems by pressing “Alt+`(tilde)”.

Alternatively, use the mouse to control the IME, or select another window and press Control + Space to return.

This is not due to the keyboard, but to the OS behavior.

The following are used for rubber feet.

Please select your preference for height.

Wakei Sangyo Soft Cushion Round shape with adhesive, transparent, diameter 6.4mm, door scratch prevention, impact prevention CN-020 16pcs.

Also, please use the following for screws and spacers.

• Spacer Silver Color (M2-5mm both female threads)
• Spacer Gold Color (M2-5mm both female threads )｜Hirosuginet
• M2 Screw Silver Color (4mm/5mm) ｜Yuusha Kobo
• M2 screw gold color (4mm/5mm)

Re-manufacturing of aluminum cases is not contemplated at this time.

There is a “minimum order quantity” for ordering aluminum cases, and it is difficult to provide aluminum cases at the current price without exceeding the minimum order quantity.

Therefore, it is difficult to place an order without a cohesive need.

Please understand that we are not responsible for any loss or damage to your property.

None at this time.

Please purchase aluminum cases during the pre-order period.