Universal holder which I use with PCB. This is almost fully printable stand, except aluminium extrusion 2020 and rubber 14 mm stand which you need to buy. Depend on you need you can use 2020 with any available length.

Parts required in basic configuration (all are symmetric, no need to print left or right version):

01_Holder.stl (2 pcs)
02_Knob_M10.stl (2 pcs)
03_Slider.stl (2 pcs)
04_Stand.stl (2 pcs)
05_Small_Nut_M6.stl (2 pcs)
06_Knob_M6.stl (1 pcs)
07_Big_Nut_M6.stl (1 pcs)
08_Hammer_Bolt_L11.stl (2 pcs)
09_Hammer_Bolt_L15.stl (1 pcs)

Design contain additional 11_Slim_Slider.stl which I use to hold solder spool. It required 10_Sleeve.stl and 7_Big_Nut_M6.stl and metal bolt with any length you need. This extra slider required also metal bolt and hummer nut.

All part print with 0.2mm layer height, 3 perimeters and min 30% infill. Increase infill and perimeters for all elements with thread. Hummer bolt and nuts I recommend to print with 100% infill.

All parts are oriented properly. No need to print with support. Depend on bed adhesion, 1_Holder.stl may require small brim.

Small nut M6, Big Nut M6 and Hammer bolt L11 you can replace with metal hummer nut and bolt with 8mm length.

Update 1:

12_SmartHolder.stl added. Rounded groove make it stable to hold smartphone or even 10" tablet with vertical orientation. If you worry about your case or you do not want to scratch your device please use additional pad between holder and device (special tenon will keep it in place). I print it with 60% infill and 4 perimeters. No support needed.