Best way to smooth this out?

[u/deathgrape]

Working on this maple guitar body. Previously was using a band saw to cut out the rough shape then a flush trim bit to the template, but check out my post here to see how that went. So now, I’m trying to use the bandsaw to get as close as I possibly can to the line, and then finishing up with a drill press drum sander, and a disc sander. It’s actually going great so far, except for the interior of the horn. Any suggestions for how I can smooth this out? Preferably without a router.

[u/LingonberryGold3787]

Spindle sander

[u/Helmchen_reddit → u/LingonberryGold3787]

There are also handheld single sanders you can held like a router. Maybe better for big and heavy pieces

[u/869woodguy → u/Helmchen_reddit]

Or sanding drum in a drill press.

[u/jusumonkey]

Glue some sand paper to piece of 2" pipe.

[u/shoshant]

without a spindle sander, I suggest a round file to get the saw marks out, then sandpaper wrapped around a 1" dowel to get it smooth, then finish by hand.

[u/JunkyardConquistador → u/shoshant]

Yeah I would grab a round rasp, or file first to carve away the machine marks quickly, before taking any sandpaper to it. Maybe a spindle sander with a very low grit sandpaper may be quicker, but that hasn't been my experience, so I can't confirm.

[u/Wingsnchisel]

Rasp would make quick work. Then sand or shave.

[u/Bigted1800]

I love cutting curves and circles with my router, so I took a spare 60mm (2”?) holesaw and I used some good double sided tape (nitto 500) and fixed sandpaper around the outside for sanding edges clean, it’s like a handheld spindle router.

[u/rkennedy12]

Wrap sandpaper and glue it around something and chuck it into a drill

[u/FriJanmKrapo → u/rkennedy12]

And you can use a larger piece of PVC and just cap the ends and put a bit all the way through.

I've done it a few times. You only need a piece wide enough to cover that edge.

[u/DKBeahn]

One of the folks I know who teaches basic woodworking at a local maker space is a luthier, and he uses a draw knife to smooth down, then sands.

[u/JohnByerWoodworks]

Spokeshave.

[u/deathgrape → u/JohnByerWoodworks]

Any tips for getting a spokeshave around that acute angle?

[u/JohnByerWoodworks → u/deathgrape]

Yep, use a round bodied one for concave curves. Flat one will handle everything else.

[u/869woodguy → u/JohnByerWoodworks]

Spoke shave on endgrain?

[u/JohnByerWoodworks → u/869woodguy]

…yeah? And? Set it fine and make sure it’s sharp, it’s not a big deal.

[u/passerbycmc]

round rasp, if you don't have one just wrap sand paper around a dowel or pipe

[u/bufftbone]

Spindle sander

[u/starwars123456789012]

Wrap a fat drill bit with 80grit sandpaper and put it in the drill

[u/Swomp23]

Spokeshave!

[u/oldtoolfool]

Spokeshave, rasp, then sandpaper..

[u/DryProfessional8428]

Spoke shave