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How to paint circular shape

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Forum topic by wakinews posted 11-16-2018 01:30 PM 349 views 0 times favorited 4 replies Add to Favorites Watch
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wakinews

23 posts in 380 days


11-16-2018 01:30 PM

Hello team. I need help on how to paint a mirror frame as in the 1st picture below. The second picture is my project.I thought I would cut the desired circumfrence on plywood or anything with a 1/4” router bit but the edge doesnt come out smooth and when I spray paint the circle does not come out perfect. I have many jobs that need to have a circle painted on top and i haven’t found a way to paint circles like those.


4 replies so far

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John Smith

1482 posts in 363 days


#1 posted 11-16-2018 01:53 PM

Waki – good to see you again !

I have used sticky vinyl such as frisket paper or vinyl shelf liner.
fix a trammel point on a stick and an X-Acto knife where you want it
and cut out the circle profile you need then spray paint or paint by brush.
a large compass with the metal points will also work well.
just fix the knife on one leg with rubber bands and you are off to the races.
but of course, you must know the dead center of the project first.

if you have several of the same size profile to make, you could take two
X-Acto blades and fix them in a wooden holder to hold them firm so they
won’t move. . . . . then just make one pass and the circle will be cut exactly
each and every time.

.

-- I started out with nothing in life ~ and still have most of it left.

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wakinews

23 posts in 380 days


#2 posted 11-17-2018 07:03 PM

Nice to see you too John. Thank you for the helpful advice.You are always helpful. I will give it a shot and show you how it comes out.

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John Smith

1482 posts in 363 days


#3 posted 11-17-2018 07:15 PM

keep in mind that paint loves to seep under masking type material.
so you must really get that tight seal along the edges of the material
you use for the masking process. thin, light coats at first, then more layers
will give you the nice clean circles you need.
practice on similar materials first before you use it on your show piece.
best of luck in your projects

-- I started out with nothing in life ~ and still have most of it left.

View Kelly's profile

Kelly

2128 posts in 3145 days


#4 posted 11-18-2018 06:31 AM

Burn marks will go a LONG ways to stopping paint creep.

I am uncertain what problem you are having. I made a super slow speed lathe to paint cylinders. For circles, I’d use a lazy Susan.

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