If you want to smooth the edge of mdf you just need to sand it through grits 125-400. Then it’s as smooth as the surface of the mdf.
I’ve cut quite a few mitres with the Mafell and it does need you to go slow and I usually clamp the rail. I’ve not had any problems with it but I don’t usually cut more than 400mm that way.
Good tekkers. I’ve found that getting filler into the grain seems to fill the “pores”, will give the sanding a try. It’s all a bit of a rush on tho, so fill and sand in a hurry seems to be the go to!
I did it that way for years. I don’t think it’s faster or a better finish but I understand using the other technique requires less kit. I use a rotary sander as well, I think that’s probably important but I’ve never checked.
If you want to smooth the edge of mdf you just need to sand it through grits 125-400. Then it’s as smooth as the surface of the mdf.
I’ve cut quite a few mitres with the Mafell and it does need you to go slow and I usually clamp the rail. I’ve not had any problems with it but I don’t usually cut more than 400mm that way.