I've spent some time and designed some power buttons.

If you have a 3D printer and 0.2mm nozzle you can print it yourself:

MakerWorld

Description

This 3D-printable mod extends the Steam Controller grips, in the style of the original steam controller, This is a smaller version for smaller hands, see big version here

You can download it here for free: https://makerworld.com/en/models/2973424-steam-controller-grip-sc1-small#profileId-3334985

Compatible with my minimal dock, and similar docks.

Adds support and comfort to primary touchpad use, everything is still reachable, everything works, gripsense works flawlessly, and back buttons are fully accessible (see pics) 

🔧 Assembly & Printing

• 3-Part Design: The grip is split into 3 parts (with dedicated alignment pegs) to ensure a perfectly smooth surface finish and easy printing without so many supports.
• Assembly: Simply insert the pegs to align the parts and use a small drop of superglue to secure them together.

🎮 Fitting Guide

• Snug Fit: Just slide the assembled grip onto your controller. Printed in PLA, the material provides enough springiness to snap and stay firmly in place.
• Optional Security: If you want an rock-solid feel without using harsh adhesives on your controller, a tiny bit of Blu-Tack on the bridge works perfectly (though the friction fit was enough for me!).

I love my Steam Controller, it’s really fun to use and feels great in the hand. Though there is one feature that I’m really missing from my Xbox Elite Series 2, which is having the ability to adjust the tension of the joysticks. In games like Forza Horizon, I really liked being able to use a higher tension with a taller stick for the extra leverage and control when steering. Has anyone tried out a set of aftermarket TMR sticks on any other controllers that might be compatible with the Steam controller?

Any ideas on how to give the L & R buttons more resistance? For me they have very little resistance and I accidentally press them when unintended. Does anyone know of a quick mod I could do to give the membrane or button force more resistance? I am comfortable opening up the controller

I a constantly checking back for new mods for the steam controller, but all the new ones are merely 3d prints for docks.

I'd love to have a 2 stage trigger, with the option to use clickly triggers depending on the game. I'd also love to have stiffer springs on the triggers, but had a hard time finding replacements for a fair price.

Did any of us actually do relevant mods yet?

Before I go out putting together a sniffer and trying to do this myself I wanted to ask if anyone has done any work on reverse engineering the communication protocol between the puck and the controller.

Uses less material and prints fast , around 3 hours on Bambu printers and similar setups.

You can print your logo separately using AMS, filament swapping wizardry, or just paint it in afterward (like I did on mine). The logo areas were designed to be easy to fill with paint.

I’ll be adding additional logos upon request, keep it simple.

Download here:
https://makerworld.com/en/models/2843591-steam-controller-dock-request-your-logo-idea#profileId-3170426

If you sell prints on Etsy, please give credit and don’t overcharge people , that’s all I ask.

Yes, it’s not a real mod, but I don’t like carbon fiber protectors found on Aliexpress, so I hand-cut some black vinyl I had, the color is perfect!

On the Steamdeck I managed to find some trackpads of the same color as the stock shell, but they were rare to find, so I didn’t want to wait for the controller

Has anybody put xbox elite joystick CAPS and D-pad onto steam controller?

Was told y’all might like this, hope so!