comment: >
  
  Looks like a neat solution. Do you glue the spacer on to the board?
  Upload the finished product later. Would love to see it!
context: Looks great! Can the Pi Pico run something like qmk? Or is it custom programmed? >
  
  It can run QMK or even KMK which is written in CircuitPython and can be modified by editing a text file in a virtual drive from the pi. Really nifty.
  Edit: link www.kmkfw.io >
  
  Very cool, thanks! >
  
  A little numpad for my nephew I designed and printed. It is using some keycaps from a previous build and Novelkeys BOX Jade Clickys. 
  His name is printed on the underside. He was very happy to receive this gift. >
  
  Are the switches not on a PCB? I can't seem to understand how this is done, what are the switches attached to? >
  
  I think they're slotted into a 3d printed plate and the connections are hand-soldered wires. OP has hidden the wires underneath the plate as you could see a Philips screw head at the top left corner. >
  
  I don't know what I could use it for but it's way past cute!!! >
  
  He calls it a macropad so I'm assuming gaming macros. >
  
  it's amazing! would u share a guide on how to do one like this? >
  
  Go check out Joe_Scotto on YouTube! He has multiple guides on how to build a handwired board. That is where I learned! It was a little bit daunting at first but it all makes perfect sense after you watch some videos. 
  It is definitely a fun challenge and not so difficult as it might seem! :) >
  
  Hey it's me, your other nephew. I would like the same gift, thank you. >
  
  Sorry if i am uninformed but it seemed so logical to need at least 1 pin (of the controller) per keys can someone explain why this is not the case (or why it isn’t necessary at all) >
  
  If you wire it in a matrix like this then you'd get 12 unique connections at each of the crossings to differentiate the keys. >
  
  This was exactly how I wired it up :) >
  
  I did something similar this weekend too, have wired an rp2040-zero to a 3D printed 3x3 layout keyboard.
  Yours looks much neater though. >
  
  I’ve always been fascinated with handwiring a keeb. Looks complicated though. >
  
  It's not really too bad, takes some basic circuit knowledge, soldering skills, and beyond that not much else. You don't need to do programming to make and flash a keymap for qmk. Check out some build videos in YouTube, I'm sure that anyone with a couple days worth of time and effort could learn the necessary skills. It's not necessarily simple, but it's definitely learnable. >
  
  I really want to make this. I bought keys, switches, diodes and a microcontroller to build something like this.
  It passed the solder test, but I have no idea how to take it from a bunch of loosely connected parts nd turn it into an actual keypad with a case. >
  
  I dont want it to sound like im hating on it, it looks like a cool gift but can i just ask what is the purpose of such a numpad? Is it because he has a keyboard without a numpad and he can use this one so it doesnt waste space on the desk when he doesnt use it? >
  
  Haha no worries! He has a TKL keyboard so he can use it as a normal numpad but he will mostly be using it as a macropad to have preprogrammed shortcuts and stuff. 
  Might be a little useless but it was a fun build and will probably build myself one since I am now using a 40% keyboard. 
  It is a simple way to have more buttons but take very little desk space since you can put it where it’s not in the way :) >
  
  I'm not versed in this, but how would it connect? Does it have a USB Bluetooth connector that you plug in? And the keys itself running off of a battery? >
  
  No, it plugs directly into the micro usb on the RPi Pico, no bluetooth >
  
  Good job op ! >
  
  Forgive my ignorance, but what are the advantages to excluding the " +  *  /  - ", & "Enter" keys?  Does the "option" key act as a Shift, for the mathematical operators? >
  
  This is not really a traditional numpad and more of a macropad to have useful shortcuts and stuff. So there is absolutely no advantages to exclude useful functions. 
  I just didn’t think a 12 y/o would have that much use of all the mathematical functions so I excluded them from this build. I use the “option” key as a layer switch so you can add those functions in later on if he wants them :) >
  
  I appreciate the educational and non-hotile answer. :) >
  
  This looks so nice and neat.
  Never wanted to do a number pad like this but I like the design. The option key where it is is pretty great and never thought of that spot before. Did you use stabilisers for the zero key? I haven’t figured out how to incorporate stabilisers in anything I’ve made. 
  And how did you connect the pico, hot glue? I’m still finding a way to avoid hot glue in securing them well enough.
  Can you put the stl on printable please? >
  
  Thank you!
  I didn’t use stabs for the zero key this time just because I didn’t have any laying around and didn’t have time to order any. My nephew didn’t notice anyways but might be something to fix later on. 
  The Pico is hot glued on. u/Joe_Scotto does something pretty smart for one of his boards. He uses pin-socket headers soldered on to the raspberry pi to hold it into place.
  I am currently away for holidays so I don’t have access to the files until after new years. I can for sure upload the STL and send it to you then :)