I am working on a series of 2 unit x 3 unit Gridfinity tool trays, to fit into my Dewalt T-Stak series tool box, as well as elsewhere. I have added a 12mm magnet hole to the center of every square for an optional countersunk screw magnet.

This one is a rack for all of the permanent markers I use, that tend to float around the workspace otherwise.
You will need the following:
1x 2x3 Pen Rack Floor
2x 2x3 Marker Rack plates
4x 29mm spacers
4x 10mm spacers
4x M3x50 bolts

GF2x3 Marker Rack

2x3-35MarkerRack.3mf

I am working on a series of 2 unit x 3 unit Gridfinity tool trays, to fit into my Dewalt T-Stak series tool box, as well as elsewhere. I have added a 12mm magnet hole to the center of every square for an optional countersunk screw magnet.

This one is a rack for all of the usual drafting and sketching tools I use. There is an optional pencil cup for pencils to rest on the ferrule or wood, instead of the lead. 
You will need the following:
1x 2x3 Pen Rack Floor
2x 2x3 Drafting Rack plates
4x 29mm spacers
4x 10mm spacers
4x M3x50 bolts
Optional Pencil Cups as needed. 

GF2x3 Drafting Rack

I am working on a series of 2 unit x 3 unit Gridfinity tool trays, to fit into my Dewalt T-Stak series tool box, as well as elsewhere. I have added a 12mm magnet hole to the center of every square for an optional countersunk screw magnet.

This GF2x3 fits all of my usual go-to scribble sticks and measuring sticks (aka pencils, pens and rulers). There is an additional pencil cup that you can pop in to protect mechanical pencils. It lets the pencil rest on the metal ferrule, not on the lead. 

2x3-DraftingRack.3mf

Gridfinity Drill Caddy, Fits 3/8" down to 1/16" drill bits, 3 Hex step drills, a hex chamfer bit, a center punch, a hole marker, and a set of hex hole punches. This was 99% of everything I was reaching for when drilling holes on my various hobby stuff. 
It's based on a Gridfinity 2 unit x 2 unit base, with the addition of a 12mm screw on counter sunk magnet in each unit (my preference. All of the tool holes are meant to be loose fitting, so you don't have to wrestle them in or out. Most of the tools can be bought on Amazon, or on Harbor Freight Tools

GF2x2DrillCaddy.3mf

I am working on a series of 2 unit x 3 unit Gridfinity tool trays, to fit into my Dewalt T-Stak series tool box, as well as elsewhere. I have added a 12mm magnet hole to the center of every square for an optional countersunk screw magnet. 

This one fits the Wera Kraftform 817 R extending screwdriver handle (PN 05051482001), and a handful of your most used bits and bit inserts. 

GF2x3WeraHexTray.3mf

I am working on a series of 2 unit x 3 unit Gridfinity tool trays, to fit into my Dewalt T-Stak series tool box, as well as elsewhere. I have added a 12mm magnet hole to the center of every square for an optional countersunk screw magnet. 

I wanted an adjustable Z Limit with a threaded adjuster, so came up with this system. Reuses the original switch and it's harness, NO HOLES DRILLED, and mounts to existing bolt holes and T-Slot railing. It's not super convenient to get to,  but it's not horrible, and once it's locked in place, it's not going to need much access anyway. 
Additional Parts Needed:
1. 30-35mm M5 bolt, must be fully threaded
2. M5 nut x2
3. M5x15 bolts x 2
4. M5 T-slot nuts
5. M4x15 bolts x 2

The adjust block has a 4.9mm hole where the adjuster bolt goes in, that's intentionally tight fitting. Work it back and forth a few times if you want to loosen it up, or run a tap thru it first. I use a jam nut on top to make 110% sure it stays put. There is a jam nut under the switch pad for the same reason. The pad helps keep the factory limit switch arm from scraping or snagging. Mine had enough crunchy noises for me to investigate and decided the metal lever on the metal bolt was NOT a good idea. 

The Switch Mount bolts on using the 2 existing bolt holes for the left side cover (as facing the doors). It fits over the existing bracket, just need 2 longer bolts. 

Creality Sermoon D1 threaded adjustable Z Limit System

SermoonD1ZLimitBracket.3mf

Simple and compact little tool kit that sits inside of a Creality Sermoon D1, and uses all of the included tools, plus space for a glue stick and extra nozzles. The bottom has a 1x3 Gridfinity pattern on it. I have a small metal plate that came with a cell phone mag holder, stuck to the printer to help hold the tool kit in place. 

Sermoon D1 Tool Kit

yes the sarcasm is now dripping off the page, sorry bout the mess. 
I suggest using Vase Mode for the top part. I used PLA, 0.6 nozzle, and otherwise stock settings on my Creality Sermoon D1, using PrusaSlicer. Seems to be fairly strong. The base is designed to fit onto a open hole of about 1.75" that we use for a CAT40 tool rack. Let me know if you need something modified. Would be glad to modify it for you. I designed it in Fusion360. I added the "crunched" up top with a pair of side cutters to add some randomness. The 3D model is smooth topped. 

(broken drill) Tip Jar

TipJarCAT40.5.3mf

I wanted a way for the Manta lid to hinge 180* and lay flat as well as be able to lock shut. This is what I came up with. 

iFixIt Manta Hinge and Clasp

MantaHingeLower.3mf

This is a tray I doodled for holding all of the usual tools for working on my 2020 based Hobby CNC systems, Laser etcher, 3D printer, etc. It's based on a 2x4 Gridfinity foot print. I added 10mm magnet holes for variety ( I had a bunch). Socket holes on the left fit most 1/4" square drive sockets and Hex bits. Parts tray in the center. Then L wrenches and hex driver holes on the right, as well as a spot for a mini adjustable wrench, and pair of nippers. All holes are intended to fit the tools loosely. I don't like having to wrestle the tray for a tool while I'm holding something in place. 

Assorted Tool Tray, Gridfinity 2x4 base

P42AssortedToolTray.stl

This is a playing card holder I designed. I have a hard time holding cards for any length of time, and have tried other card holders. This one is a bit bigger, and offsets the back row higher up so you can see them easier. It's designed to fit around a standard dinner plate too. 

P42 Colosseum Card Holder.stl

one of my older designs:

This is a foot for my Ender 3, it slides into the T Slots, and you pop a foam golf ball into it. The foam golf balls seem to hold up well. I've had mine riding on these same 4 balls for over a year now. This also raises the whole machine up a little and makes it stay in place really well. 

Ender340mmQuadrailFoot.stl

this is a left side drawer for a Ender 3 and should fit most similar clones with 4040 T slot rails. There is a 3mm hole for a set screw if you want it to not move around as easy.

Let me know if you want a modified version of it, I would be glad to tinker with it. The T slot bars should clear the middle cross bar bolts on most versions.

I also designed it with simple printing in mind. The drawer should print fairly easy on it's bottom. The housing is intended to print on it's back, only needing supports under the end of the T rails (ugly ends up hidden).

Ender 3 Lefty drawer

E3V2LeftyDrawerOuter60D.stl

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