Hi! I designed this book stand. 

Check the model here:  [https://a360.co/42CVy0a](https://a360.co/42CVy0a)

BOM: 

4 x Socket Head Screw M3 x 0.5 mm Thread, 20 mm Long
2 x Socket Head Screw M3 x 0.5 mm Thread, 16 mm Long

12 x  Socket Head Screw, M4 x 0.7 mm Thread, 16 mm Long
4 x Socket Head Screw, M5 x 0.8 mm Thread, 20 mm Long
4 x Hex Head Screw, M10 x 1.5 mm Thread, 40 mm Long
1 x Hex Head Screw, M10 x 1.5 mm Thread, 100 mm Long

6 x Nylon-Insert Locknut, M3 x 0.5mm
12 x Hex Nut, M4 x 0.7 mm Thread
4 x Hex Nut, M5 x 0.8 mm Thread
4 x Nylon-Insert Locknut, M10 x 1.5 mm Thread
1 x Hex Nut, M10 x 1.5 mm Thread

In some parts, there are some pauses to insert the M10 locknuts and the M10 bolt. 

You can insert some silicone rubber pads  20 mm x 2-3 mm at the bottom of the base. 
Round Rubber Pads: 
[https://a.co/d/0cp6yru](https://a.co/d/0cp6yru)

Check out this video to see how to assemble it: