All credit goes to Omnifixo, their design is flawless, this is just adapted for 3D printing. If you have the money, I highly recommend to go and support them as their soldering station is made of metal and is much sturdier
 

⚠ A V2 is WIP to be sturdier. Experimental files are now available for downloading

Warning:

This project is still in heavy development, if you have issues, please contact me (tolerances are quite tight so make sure you dial your settings). If you have suggestions or commits I'm happy to take a look.

Description

Inspired by Omnifixo, Soldero is a fully 3D printable soldering station designed to make soldering easier and more comfortable. It allows you to easily adjust the position of parts you're working on. This makes it ideal for a variety of soldering projects, from small electronics to larger components.

Required Parts (N = Number of Soldero Tools)

• 13mm Steel Ball bearing [×n] (can be found on Geomag magnetic toys)
    
• M3 Screw 15-25mm long [×n]
• Steel Spring Ø5.5mm and at least 18mm long [×n]
• Ø20mm diameter ring magnet (has a hole about Ø5mm in it) [×n]
• Upper Jaw [×n]
• Lower Jaw [×n]
• Stem [×n]
• Steel Sheet [×1]
• Platform [×1]

Required Tools

• Hot glue gun
• Allen key to tighten screw
• (Optional, but recommended) PTFE Lube or Grease. WD40 should work as well
• (Optional) Super Glue
• (Optional) M3 tap

Recommended Print Settings (tolerances are quite tight so make sure you dial your settings)

• Printer: FDM works but if you have a resin printer use that
• Layer Height: At least 0.16, but the lower you go the better
• Infill: 100% for better strength
• Orientation: The Top Jaw is printed flat, the Bottom Jaw is printed upright (as seen in assembly) and the stem is printed with the cavity facing upwards.
• Support: The Bottom Jaw requires a support on the overhang, make sure to dial your settings so it doesn't leave residue
• Brim and Raft: I recommend using a brim as the parts are quite small. A raft is highly recommended for the Stem so it doesn't tip over during printing.

Assembly

1. Hot glue the ball-bearing in the cavity on the stem. Make sure to use a generous amount of glue so it doesn't fall out.
   
2. Tap the hole on the top of the stem using an M3 tap or by repeatedly screwing the screw in and out until it digs it's own threads.
   
3. (Optional, but highly recommended to reduce wear) Lubricate the Stem and the sides of the Lower Jaw.
   
4. Slide the Lower Jaw through the Top Jaw as shown in the picture. Be careful as they can damage easily during this process.
   
5. Cut the spring to length if not already (18mm) and slide it from the side while simultaneously sliding the Stem from the hole on the bottom of the Lower Jaw.
   
6. Finish the assembly by fastening it with an M3 screw coming from the top of Upper Jaw into the threads of the Lower Jaw
   
7. If you have issues with a weak grip (happens due to a strong spring creating a tiny gap) - use a little bit of hot glue in that gap to close it and add adherence. 
8. To assemble the platform you need to cut a piece of steel sheet to fit the size of inside the platform (about 80x130mm if you wish to print it at 100% size)