Make it extreme

tracked vehicle
https://www.youtube.com/watch?v=2EJBvW-Lh4I tracked vehicle

https://www.youtube.com/watch?v=BIvoiwozm8w differential braking tank transmission

https://www.youtube.com/watch?v=LK5ix2qSzEM car jack

pipe bender
pipe bender

xy platform
https://www.youtube.com/watch?v=IeXT1B1xklQ using angle iron and box cutter blades as separators as per Jeremy Schmidt youtube channel, by Ozturkmen

https://www.youtube.com/watch?v=MwcMXOO3a5o drillpress by Ozturkmen

links
see Lathe from Homemade lathe machine uploader.

https://www.youtube.com/watch?v=dIe_6ekgyhQ cut circle with two threaded rods.

links
Machine design

Made in Poland

navin drillpress