MX Switch Break-In Machine+ (ktechs x keekeen) [GB NOW till end of June]

Update: 29th May 2023
GB is open till 30th June 2359

Hello GH, this is TR from ktechs.

Would like to introduce you to a break-in machine that we have been working on with keekeen (@keyhub.kb) who previously is known for contributing his open-sourced break-in machine design on github.

We focused on bringing the best quality, durability, speed, and new unique features that are not seen in the market yet (listed below). Please leave us feedback on the IC form if you are interested. Appreciate!

IC Form
Discord

About the Switch Break-In Machine +
- Injection moulded and casted ABS parts with good durability and finishing
- Custom Silicone Inserts for “organic” off-centred key presses
- Supports both centred and off-centred key presses up to 100 switches at once
- Long-pole switches friendly. Supports switches with travel distance from 3 - 4mm
- Fast operation: 700 - 800 actuations / min. 1 million actuations in 20 - 30 hrs

Specifications
- Dimensions: 14.9 x 14.9 x 20.5cm
- Weight: 1.3kg
- Max number of switches per run: 100 switches
- Compatibility: MX style switches with travel distance of 3, 3.25, 3.5, 3.75, 4mm
- Actuation mode: Support Centred / Off-Centred actuation
- Operating speed: 700 - 800 actuations/min
- Materials:
Housings, Pushers, Switch Plates, Cam: Injection Moulded and Casted ABS
Silicone Insert: Injection Moulded 40A Duro Silicone
- Colours:
Housings, Pushers, Switch Plates: Smooth Matte Black Finish
Silicone insert: Blue

More about the processes
We are using a mixture of Vaccum Casting as well as Injection Molding.

This essentially helps to increase the efficiency of the product as well as the strength aspect with more detailed tooling.

From our testing with this process vs 3dp, we find that the 3d printed model is unable to bear the strength of the motor and will hence crack/malfunction therefore injection molding is the much stronger option on top of its benefits.

This comes with no doubt a higher cost but much better quality to boot.

All fabricated parts will also be sanded and smoothened to remove uneven surfaces. They will then be coated with a layer of primer before a matte black spray paint is applied.

From personal experience, I wrap my machine with bubble wrap during operation to increase the heat exponentially. There is a small amount of paint that comes loose into my hand when i hold the switch plates. This is nothing to worry about and can be easily washed off.

Some pictures for the fabrication process:


Media
Please check linked Imgur post for more detailed images and videos

Group Buy Information
- Pricing: 250 SGD [est 190USD]
- Timeline: GB will start on 26th May and run till 30th June 2023 with estimated fulfillment in Q3 2023

VENDORS
SEA/International: ktechs
NA: Dangkeebs
MY: Mecha Malaysia
TH: Aiglatson Studios
France/EU: Delta Key
AU:SoupKeys

Additional Information/Update Logs:
Update 1: For the switch plates, we will be adding numbering to each side of the product. This helps you to keep track of the positions etc
> Unfortunately, we won't be implementing the numbering feature due to increase of mould price as the addition of numbering will move from 2D to 3D CNC process.

Update 2: We have made some small adjustments to improve the actuation of the switches
> Increased +15mm housing height to significantly reduce flex during operation
> Optimised offset of pusher to improve full switch actuation

Update 3: Instead of going for hotglue on the top of the motor, we're changing this to heatshrink wraps
> Exposed motor supply pins will be insulated with high temperature resistance heat shrink

Update 4: Exploring and aiming to provide at least 3 types of plugs: UK, US, EU to ensure that you can connect your machine
> UK, US, EU, AU


Socials
ktechs
@keyhub.kb (keekeen)


Shipping / Timeline
Shipping ETA: Q3 2023

Additional photos/videos:

Actuations:
https://youtube.com/shorts/Pqd6EseM8wg?feature=share

Machine speed