Stable and super smooth adjustable holder for your USB Microscope of UV light.

## NOTE: since every microscope or UV light has a different diameter, I included the step file of the clamping ring for 2 different diameters. You can use your favorite CAD software to adjust the inner diameter to fit your device :) 

## If you have any questions, requests or feedback, please leave me a message and I'll get back to you.

This height-adjustable holder was designed for users who need smooth, accurate, and repeatable focus positioning while working on electronics, PCB soldering, CNC projects, 3D printing, jewelry, model making, and other detailed tasks.

Unlike many simple microscope stands that wobble, bind, or drift during adjustment, this design uses dual 10 mm carbon fiber guide rods combined with a bearing-supported lead screw mechanism. The result is exceptionally smooth vertical movement with excellent rigidity and precise height control.

Key Features

✅ Ultra-Smooth Height Adjustment
The lead screw rotates in ball bearings, eliminating the rough and inconsistent feel commonly found in basic microscope stands.

✅ High Rigidity and Stability
Two 10 mm carbon fiber rods (160mm long each) guide the microscope, minimizing flex and unwanted movement while adjusting focus.

✅ Precise Positioning
Fine vertical control makes it easier to inspect small details, solder SMD components, measure parts, or capture sharp images.

✅ Reduced Vibration
The dual-rod design helps keep the microscope steady during use, resulting in a more comfortable viewing experience.

✅ Designed for 3D Printing
All components are optimized for reliable printing and straightforward assembly. 

Ideal For

• PCB soldering and electronics repair
• SMD rework and inspection
• CNC tool inspection
• 3D printer nozzle inspection
• Model making and miniatures
• Watchmaking and jewelry work
• Photography and macro imaging
• General workshop use

Why Print This Design?

If you've ever struggled with a microscope stand that feels loose, shaky, or difficult to adjust, this design offers a significant upgrade. The combination of carbon rod linear guidance and bearing-supported lead screw motion provides a level of smoothness and precision normally found in much more expensive commercial stands.

Whether you're soldering fine-pitch components, inspecting 3D prints, or examining small mechanical parts, precise height adjustment directly improves usability, focus accuracy, and overall workflow.

Print it once and give your microscope the stable platform it deserves.

Print Recommendations

• Layer Height: 0.20 mm, 0.12 or 0.16 for the lead screw and the lead screw connectors.
• Walls: 2
• Infill: 15%
• Material: PETG, ABS, ASA, or PLA+
• Material Clamping Ring: TPU preferred (PETG, ABS, ASA, or PLA+ will also work) 
• Supports: NO

Parts to buy:

You need a few of the shelf part to assemble this design. The parts can be found easily on Aliexpress for only a few bucks. 

• Two pieces Skateboard Ball Bearings 608zz mm X 22mm X 7mm [https://s.click.aliexpress.com/e/_c3fnMazn](https://s.click.aliexpress.com/e/_c3fnMazn) 
• Carbon rod 10mm outer diameter. [https://s.click.aliexpress.com/e/_c2vo9rXB](https://s.click.aliexpress.com/e/_c2vo9rXB) Cut to 2 parts of 160mm length each.
• M3 socket head bolt 20mm [https://a.aliexpress.com/_EJQBsjy](https://a.aliexpress.com/_EJQBsjy) 
• M3 flanged lock nut [https://s.click.aliexpress.com/e/_c4UycdZ7](https://s.click.aliexpress.com/e/_c4UycdZ7)