The stand of the YM Next 1000 treadmill is too small and unsafe, and it also covers the display and pad buttons. So I designed this stand (specific to this model).
No supports needed, print the 3 main pieces and glue or solder them together. You also need an elastic band to apply the upper hook, for further safety against the device falling.
This is the treadmill model I purchased:

https://www.yourmove.it/products/tapis-roulant-next-1000