Small Electric Screwdriver.

"Don't make the project 1:1 as it may only serve as an idea, and you can purchase the same hardware. The hardware works perfectly fine.

This is my first attempt at 3D printing. I have some experience as a student with 3D Studio Autodesk, which is why I turned to Fusion 360. After a few attempts and starting from scratch, I created something that works. It's easy to work with and there are enough videos online.

The screwdriver works great, but I'm not satisfied with the result at all.

When I have more free time, I will make version 2.

1. When printing with a 3D printer, it's best to provide some larger clearances for easier assembly. Otherwise, if everything is too precise, it will require filing.
2. It's better for the screwdriver to be multi-sided rather than cylindrical for a better grip.
3. The buttons should be centered for ease of use in both ways of holding the handle.
4. Making the screwdriver in two threaded parts is not a good idea as it complicates things.
5. It's best to make it in two longitudinal parts, like I did with the main body.
6. The shaft connecting the motor and the tip can be made much smaller with a 3D printer.
7. The smaller standard for the 4mm tip is best.

The materials were purchased from the Internet.

1. Motor - DC5V 60RPM - $0.46

https://www.aliexpress.com/item/1005002786790478.html?spm=a2g0o.order_list.0.0.63981802Yryoch

• Rated voltage: DC 5V
• No-load current: 50mA
• No-load speed: 60RPM
• Suitable voltage: DC 3V-12V
• Speed: 36RPM-108RPM
• Shaft diameter: 3mm (D-shaped 2.5mm)

2. Mini Micro Limit Switch NO NC 3 Pins- $0.83

https://www.aliexpress.com/item/4000434289043.html?spm=a2g0o.productlist.main.33.1fd913f99sS6K8&algo_pvid=78cbfe1c-324e-4c83-9c06-0df487b2f090&algo_exp_id=78cbfe1c-324e-4c83-9c06-0df487b2f090-16&pdp_ext_f=%7B%22sku_id%22%3A%2210000001794244346%22%7D&pdp_npi=3%40dis%21USD%211.31%210.75%21%21%21%21%21%402102176616768799142624256d0725%2110000001794244346%21sea%21BG%21131905527&curPageLogUid=8Hr5s6Uge12x

3. D19*L25 Aluminium flexible - $0.49

https://www.aliexpress.com/item/32826916374.html?spm=a2g0o.order_list.0.0.5da618027Km1Bw

4. 2xPCS 3.7V 130mAh 401030 Rechargeable Lithium Polymer Battery - $1.98x2

https://www.aliexpress.com/item/1005004095600331.html?spm=a2g0o.order_list.order_list_main.158.7f491802fJ0KOJ

5. Multi-Cell 2S Type-C LiPo Polymer Li-Ion Charger - $1.67

https://www.aliexpress.com/item/1005004284040944.html?spm=a2g0o.order_list.order_list_main.117.7f491802fJ0KOJ

6. bearing. $0 (I have it already)

Total : $7.41

*It costed me a few beers to 3d print. My friend who owns a 3d priner printed out the parts for me, which they claim are under $5.

My inspiration:

https://www.youtube.com/watch?v=ZXD2Jqg4518&list=PLb3RPerjHjoqlx4x_Au4Av_AHAGOlWhZE&index=3

Connecting the switches so that the motor rotates in both directions.