Removing the bumps/waves from an arc cut

That’s what I want an oscillating spindle sander for. It’s perfect for the inside of curves.

A disk sander does the job on outside curves.

-- Gary, East TX -- The longest journey begins with a single step.

Inside = spindle sander

Outside = disc or belt sander

-- -John "Do I have to keep typing a smiley? Just assume it's a joke." www.flickr.com/photos/gizmodyne

Gizmo’s got it. . . and like Gary, I’m wanting an oscilating spindle sander. Sanding drums in a DP only get you so far. That’s what I currently go to, however.

-- Jeff, South Carolina

Yep, got the OSS. works fine on inside curves.

-- Thos. Angle, Owyhee Design, Oregon

Yes an OSS can do wonders, but it also can create more bumps because of its small size (unless you have a huge one). A piece of masonite (or other semi-flexible wood), say eight inches long and one inch wide, with sandpaper glued on on one side and two small handles glued on the other side will make a flexible sanding strip. David Marks uses this techninque all the time. Neil Lamens uses a strip of Wiggle Wood inside a sanding belt to smooth large curves.

Steve

-- Stevethepeeve -- I'm no rocket surgeon

The other way is to make a template from MDF or similar material. Smooth with sanding strip or rasp or whatever (the mdf should shape easily). Then attach template to the other pieces and use a flush trim router bit to match the profile.

-- -John "Do I have to keep typing a smiley? Just assume it's a joke." www.flickr.com/photos/gizmodyne

gizmodyne hit it on the head for a cheaper way to clean it up quickly. Although if the jobs gets you an OSS go for it.

-- Hope Never fails

I’d probably go with the template and flush trim router.

-- Maplewood, MN

Router would have been my suggestion. Good luck and take some pics to post.

Have a great day,

-- Bob Lance, DE

Thanks all, now I see why that Ridgid spindle sander was so popular as a Christmas gift!
I’ve got some credit and gift cards at HD, this might be on the list…

-- Tim D. - Woodstock, GA

And… thanks again. I purchased a flush cut bit on my lunch break today… hopefully that will do the trick. I’d still like the spindle sander so I’ll add that to my ever-growing list.

-- Tim D. - Woodstock, GA

like steve i use a metal or plastic ruler with sandpaper on it . it mostly depends on the lenth of the arch . im going to start one this week thats 7 ft. wide ill probably cut a piece of maple 1/8 thick 1 in wide glue sandpaper on it

If the arc happened to be part of a circle I would have started with a tramel and eased the bit through the work about a 1/4” at a time.

If the arc was other than a circle then a template and router is the best way to go as mentioned above.

Cheers
Bob

-- A mind, like a home, is furnished by its owner