hello, i made some extenders for the original pedals of the begode t4, they are suposed to fit snug on your pedal, but it might be more or less tight depending on the printer
i recomend using at least 3/4walls and a high infill, and to use either petg or abs, and i recomend print it upside down, with the part in contact with your feet looking at the bed
if you want you can add a skateboard sandpaper sticker for more grip