Check out https://www.pcbway.com/ for quality 3D printing, CNC milling or PCB prototyping!
In this first part of my DIY unipolar 3D printer build we're going to start building the gantry made from baltic birch plywood and MDF! Very importantly we're also discussing how to deal with bent materials in order to minimize impact on print accuracy of the finished 3D printer.

Here are some affiliate links to the parts I got for this printer:
5pcs A4988 stepper motor drivers: https://s.click.aliexpress.com/e/_Apv00b
Cheapy hotend kit: https://s.click.aliexpress.com/e/_A217Gn
Arduino mega 2560: https://s.click.aliexpress.com/e/_AnxG2B
Geeetech PLA filament: https://s.click.aliexpress.com/e/_DBW...
4010 turbine fan: https://s.click.aliexpress.com/e/_AnUid9
100k NTC temperature sensor for heated bed: https://s.click.aliexpress.com/e/_A9cOwJ
10m nylon coated fishing line: https://s.click.aliexpress.com/e/_9HKabt
Keep in mind I got a few of these items during sale, so the total might well be above $50 now (especially with inflation)

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