I found some mudguards online, but they were smaller than the original MarshGuard and didn't fit my fork. So I wanted to make one that would fit proper MTB forks (like Fox and Rockshox) I copied the identical shape of the MarshGuard that I use on all my bikes. Unfortuanately it didn't fit on the bed of my Ender 5...so I had to reduce the size to 93% to make it fit. But even at 93% of the original one, it fits perfectly the bike.

If you have a bed larger than the Ener 5 (larger than 220x220) you can increase the size by about 7% to get the size identical to the original MarshGuard

Priting tips:

1. Make it 3-4 layers thick
2. Use PETG. PLA is stiff and will crack, while PETG is very flexible and more impact resistant too.