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Made Crown Molding Out Of Plaster Of Paris

 
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Old 10-26-2012, 10:19 PM   #1
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Made Crown Molding Out Of Plaster Of Paris


i had to extend crown molding another foot , on 2 walls
it was 30 years old , and we couldn`t find it .
client asked if i could do it with plaster .
i bought plaster of paris instead.

man , it worked great!
it was a 5 inch crown .
the plaster of paris sets up pretty quick , and it was easy to build out.
and once it starts to set , you can make it perfectly smooth.

cleint kept saying " wow! you are such a craftsman !"
i really didn`t think it made me all that.
it did come out perfect .but it was actually pretty easy.

i`m sure others have done this , right?
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Old 10-26-2012, 10:23 PM   #2
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Re: Made Crown Molding Out Of Plaster Of Paris


Quote:
Originally Posted by Spike7
i had to extend crown molding another foot , on 2 walls
it was 30 years old , and we couldn`t find it .
client asked if i could do it with plaster .
i bought plaster of paris instead.

man , it worked great!
it was a 5 inch crown .
the plaster of paris sets up pretty quick , and it was easy to build out.
and once it starts to set , you can make it perfectly smooth.

cleint kept saying " wow! you are such a craftsman !"
i really didn`t think it made me all that.
it did come out perfect .but it was actually pretty easy.

i`m sure others have done this , right?
Without pictures it didn't happen. :-)

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Old 10-26-2012, 10:31 PM   #3
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Re: Made Crown Molding Out Of Plaster Of Paris


I'm sure Resta has many stories.
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Old 10-26-2012, 10:32 PM   #4
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Re: Made Crown Molding Out Of Plaster Of Paris


Yeah no pics?
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Old 10-26-2012, 10:34 PM   #5
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Re: Made Crown Molding Out Of Plaster Of Paris


The real trick is to take a drywall knife and cut/grind the crown profile negative on it... then there is your molding knife...
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Old 10-26-2012, 10:35 PM   #6
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Re: Made Crown Molding Out Of Plaster Of Paris


The amazing Basswood has a great how too on hometalk.com
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Old 10-27-2012, 09:03 AM   #7
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Re: Made Crown Molding Out Of Plaster Of Paris


I second the need for pics. I'm always in awe of people who manage to do this. I've never had the opportunity to try.
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Old 10-27-2012, 09:36 AM   #8
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Re: Made Crown Molding Out Of Plaster Of Paris


Here is the slide show:

http://s436.photobucket.com/albums/q...view=slideshow

Here is the Hometalk Post with a link to the FineHomebuilding article:

http://www.hometalk.com/briancampbel...-crown-molding

Oh and you can visit my shiny new FB page and "like it" if you like it:

http://www.facebook.com/basswoodartisancarpentry

Cheers, Bass
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Old 10-27-2012, 10:02 AM   #9
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Re: Made Crown Molding Out Of Plaster Of Paris


I do mention on the Hometalk post that these techniques are useful for repairing or replacing damaged or missing moldings, like the OP did.

Can be cheaper than a custom millwork order... for paint grade, of course.

You can also cast parts by making a mold (kits sold at crafts stores)... or run the molding on a bench like Resta does and install it rather than running it in place like I did.
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Old 10-27-2012, 11:42 AM   #10
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Re: Made Crown Molding Out Of Plaster Of Paris


Quote:
Originally Posted by basswood View Post
Here is the slide show:

http://s436.photobucket.com/albums/q...view=slideshow

Here is the Hometalk Post with a link to the FineHomebuilding article:

http://www.hometalk.com/briancampbel...-crown-molding

Oh and you can visit my shiny new FB page and "like it" if you like it:

http://www.facebook.com/basswoodartisancarpentry

Cheers, Bass
Nice work! Looks awesome.
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Old 10-27-2012, 05:48 PM   #11
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Re: Made Crown Molding Out Of Plaster Of Paris


Bass,

I've never seen the whole process before. I'm sincerely impressed. Also, I liked your facebook page. Bravo sir.
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Old 10-27-2012, 07:38 PM   #12
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Re: Made Crown Molding Out Of Plaster Of Paris


By the way, Instead of using plaster of paris, you can use 90 minute Durabond EasySand. It gives you more working time and maybe easier sanding.

You can also make two knives, one for scratch coat--which, like it sounds can be a rough knife. That knife lays down the first coat back behind the finish coat by an 1/8" or so. Then the finish knife for the last two or so coats.
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Old 10-27-2012, 07:53 PM   #13
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Re: Made Crown Molding Out Of Plaster Of Paris


Pictures,......


B,
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Old 10-27-2012, 09:08 PM   #14
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Re: Made Crown Molding Out Of Plaster Of Paris


Quote:
Originally Posted by CrpntrFrk View Post
I'm sure Resta has many stories.
What stories? .... When it happens from day to day, everyday it becomes boring ...
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Old 10-28-2012, 12:40 AM   #15
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Re: Made Crown Molding Out Of Plaster Of Paris


Quote:
Originally Posted by PrestigeR&D View Post
Pictures,......


B,
what am i doing wrong ????

i can`t down load pics!!!
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Old 10-28-2012, 12:44 AM   #16
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Re: Made Crown Molding Out Of Plaster Of Paris


all my pics are under " jpg"
so how do i change them over to "http"?
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Old 10-28-2012, 12:48 AM   #17
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Re: Made Crown Molding Out Of Plaster Of Paris


[IMG]imag0713,jpg
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Old 10-28-2012, 12:49 AM   #18
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Re: Made Crown Molding Out Of Plaster Of Paris


Quote:
Originally Posted by Spike7 View Post
[IMG]imag0713,jpg
thats all that happens when i try
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Old 10-28-2012, 07:01 AM   #19
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Re: Made Crown Molding Out Of Plaster Of Paris


Spike,
You need to downsize the picture to somewhere around 200 kb or somewhere around there when uploading to CT as an image. CT software will adjust the picture as long as it is the range. I use Microsoft photo editor and select compress picture ,select save as DATA, and it saves the picture as a compressed file within the expectable limitations for CT. At this point you can upload the pictures to CT by selecting the files on your computer that have been compressed.

The other option is to link your picture as an Image, (which will be a much higher resolution with no limitations on size , just depending on your settings when you took the picture and uploaded it to a photo sharing site).
When you link it , as an example on photobucket: select the picture you uploaded to photobucket and on the image itself there is a menu under every picture, you pointer will turn into a hand when you browse over the selections. You want to select "copy image" for that specific picture and then when come back to CT and paste it in your post.....it will show up between image brackets: [IMA] NK10057.jpg[IMA] . Just a note- pictures may be cropped depending on what veiwers are using on the forum, iPad,I phone...etc.etc....computers running windows will not be cropped....

Very simple.....once you get the hang of it,,,,,


B,

Last edited by PrestigeR&D; 10-28-2012 at 07:05 AM.
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Old 10-28-2012, 07:15 AM   #20
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Re: Made Crown Molding Out Of Plaster Of Paris


here is a great video that really turned me on. this is making a negative molding to then cast in a concrete countertop. lots of work! i really like how easy this looks on the bench vs in place but i've never done either.

http://www.youtube.com/watch?v=z0f0sAlI3Wo

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