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Woodturning (rec.crafts.woodturning) To discuss tools, techniques, styles, materials, shows and competitions, education and educational materials related to woodturning. All skill levels are welcome, from art turners to production turners, beginners to masters. |
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#1
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Posted to rec.crafts.woodturning
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A week or two ago I wrote in asking about buffing with the Beale
system. I purchased it as a Christmas gift to myself. Now I am wondering if anyone has buffed out a bowl that has already has a shellac finish on it? If so, did you start with the white diamond and then on to the carnuba? Also, the instructions state just apply the carnuba bar to the appropriate wheel for just a second. I did and was unable to see any carnuba deposits on the wheel. Should I try for more on the wheel? As an aside, the first bowl I buffed out (sans anything but a Watco finish after sanding to 400) produced a notably pleasant surface. Thanks for assistance. |
#2
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Posted to rec.crafts.woodturning
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Hi Kevin
I never use any paint on my bowls, shellac or other, but yes you can buff any finish, you can/should use what you need (red or white polish) and a good cured finish should be easily buffed out, if it's rough you might need to re-sand with 800 or 1000 grit and then buff, just watch out that you don't go through the finish, very easily done especially on edges. If your wheels are still new, you might need a bit more wax on them, but you need very little, get your speed high enough also, if you get to much on you can clean your wheel and remove some again with your final polishing wheel. Just try it, it's not rocket science. Have fun and take care Leo Van Der Loo On Nov 9, 4:07 pm, Kevin wrote: A week or two ago I wrote in asking about buffing with the Beale system. I purchased it as a Christmas gift to myself. Now I am wondering if anyone has buffed out a bowl that has already has a shellac finish on it? If so, did you start with the white diamond and then on to the carnuba? Also, the instructions state just apply the carnuba bar to the appropriate wheel for just a second. I did and was unable to see any carnuba deposits on the wheel. Should I try for more on the wheel? As an aside, the first bowl I buffed out (sans anything but a Watco finish after sanding to 400) produced a notably pleasant surface. Thanks for assistance. |
#3
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Posted to rec.crafts.woodturning
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Just curios here Leo,
You mentioned getting your speed high enough. I have the Jet 1235 with a low end of around 500 or so. Should the speed be more than this? On Nov 9, 8:32 pm, " wrote: Hi Kevin I never use any paint on my bowls, shellac or other, but yes you can buff any finish, you can/should use what you need (red or white polish) and a good cured finish should be easily buffed out, if it's rough you might need to re-sand with 800 or 1000 grit and then buff, just watch out that you don't go through the finish, very easily done especially on edges. If your wheels are still new, you might need a bit more wax on them, but you need very little, get your speed high enough also, if you get to much on you can clean your wheel and remove some again with your final polishing wheel. Just try it, it's not rocket science. Have fun and take care Leo Van Der Loo |
#4
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On Mon, 12 Nov 2007 07:50:29 -0800, Kevin wrote:
Just curios here Leo, You mentioned getting your speed high enough. I have the Jet 1235 with a low end of around 500 or so. Should the speed be more than this? I'm not Leo, but the Beall folks recommend a min. of 1 hp and 1,700 RPM, I think... When I was buffing on my Jet Mini, I found 1,800 the best choice.. on the Jet 1442 it's 1,900... not sure what the speed choices are on the 1235 but probably in that range.. You need one of 2 things for the friction: speed or pressure.. I prefer speed.. I do my buffing on an old washing machine motor now.. 1/2 hp and 1,750 rpm.. I find that a bit slow for small stuff like pens, but fine for bowls and such.. On Nov 9, 8:32 pm, " wrote: Hi Kevin I never use any paint on my bowls, shellac or other, but yes you can buff any finish, you can/should use what you need (red or white polish) and a good cured finish should be easily buffed out, if it's rough you might need to re-sand with 800 or 1000 grit and then buff, just watch out that you don't go through the finish, very easily done especially on edges. If your wheels are still new, you might need a bit more wax on them, but you need very little, get your speed high enough also, if you get to much on you can clean your wheel and remove some again with your final polishing wheel. Just try it, it's not rocket science. Have fun and take care Leo Van Der Loo mac Please remove splinters before emailing |
#5
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Posted to rec.crafts.woodturning
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![]() If you are using old buffs that have shrunk (worn, really), or the goblet buffs that start smaller, you want more RPMs - you are basically shooting for a more-or-less fixed surface feet per minute of the buff on the wood, which varies with diameter and RPM. It's a good job for the old Shopsmith, if you have an old Shopsmith hanging around. Beall suggests 1/3 hp or greater 1725 for the 8" buffs, and 3000 rpm for the 4" buffs. -- Cats, coffee, chocolate...vices to live by |
#6
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On Tue, 13 Nov 2007 16:00:55 GMT, Ecnerwal
wrote: If you are using old buffs that have shrunk (worn, really), or the goblet buffs that start smaller, you want more RPMs - you are basically shooting for a more-or-less fixed surface feet per minute of the buff on the wood, which varies with diameter and RPM. It's a good job for the old Shopsmith, if you have an old Shopsmith hanging around. Beall suggests 1/3 hp or greater 1725 for the 8" buffs, and 3000 rpm for the 4" buffs. I have a Shopsmith but it's too friggin' loud at buffing speed to use more than once.. mac Please remove splinters before emailing |
#7
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Posted to rec.crafts.woodturning
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On Nov 12, 10:50 am, Kevin wrote:
Just curios here Leo, You mentioned getting your speed high enough. I have the Jet 1235 with a low end of around 500 or so. Should the speed be more than this? On Nov 9, 8:32 pm, " wrote: Hi Kevin Hi Kevin Well you got the answers already, I buff either with the workpiece in the lathe and my 6" wheels in a high speed drill (2900 rpm) or with my 10" wheels on a 1725 rpm electric motor, if I use my worn 6" wheels on the 1725 rpm motor it just doesn't work well, yes you need more speed than 500 that's for sure, but you can go too fast also, very high speed makes the wheel hard for the centrifugal force, and then you can get the finish to hot and buff/burn through a finish pretty fast Have fun and take care Leo Van Der Loo I never use any paint on my bowls, shellac or other, but yes you can buff any finish, you can/should use what you need (red or white polish) and a good cured finish should be easily buffed out, if it's rough you might need to re-sand with 800 or 1000 grit and then buff, just watch out that you don't go through the finish, very easily done especially on edges. If your wheels are still new, you might need a bit more wax on them, but you need very little, get your speed high enough also, if you get to much on you can clean your wheel and remove some again with your final polishing wheel. Just try it, it's not rocket science. Have fun and take care Leo Van Der Loo |
#8
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Posted to rec.crafts.woodturning
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Thanks a bunch for all the responses. I was unsure about the
appropriate speed. I have found that a light touch of the bowl to the buff/wheel seems to be better than pushing the bowl in to the wheel to the extent the wheel is deformed. On Nov 14, 1:09 am, " wrote: On Nov 12, 10:50 am, Kevin wrote: Just curios here Leo, You mentioned getting your speed high enough. I have the Jet 1235 with a low end of around 500 or so. Should the speed be more than this? On Nov 9, 8:32 pm, " wrote: Hi Kevin Hi Kevin Well you got the answers already, I buff either with the workpiece in the lathe and my 6" wheels in a high speed drill (2900 rpm) or with my 10" wheels on a 1725 rpm electric motor, if I use my worn 6" wheels on the 1725 rpm motor it just doesn't work well, yes you need more speed than 500 that's for sure, but you can go too fast also, very high speed makes the wheel hard for the centrifugal force, and then you can get the finish to hot and buff/burn through a finish pretty fast Have fun and take care Leo Van Der Loo I never use any paint on my bowls, shellac or other, but yes you can buff any finish, you can/should use what you need (red or white polish) and a good cured finish should be easily buffed out, if it's rough you might need to re-sand with 800 or 1000 grit and then buff, just watch out that you don't go through the finish, very easily done especially on edges. If your wheels are still new, you might need a bit more wax on them, but you need very little, get your speed high enough also, if you get to much on you can clean your wheel and remove some again with your final polishing wheel. Just try it, it's not rocket science. Have fun and take care Leo Van Der Loo |
#9
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Posted to rec.crafts.woodturning
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On Fri, 09 Nov 2007 13:07:39 -0800, Kevin wrote:
A week or two ago I wrote in asking about buffing with the Beale system. I purchased it as a Christmas gift to myself. Now I am wondering if anyone has buffed out a bowl that has already has a shellac finish on it? If so, did you start with the white diamond and then on to the carnuba? Also, the instructions state just apply the carnuba bar to the appropriate wheel for just a second. I did and was unable to see any carnuba deposits on the wheel. Should I try for more on the wheel? As an aside, the first bowl I buffed out (sans anything but a Watco finish after sanding to 400) produced a notably pleasant surface. Thanks for assistance. Kevin.. For an experiment on proper amount of wax, buff something non-critical and load up the wax wheel.... You know that you're gone "too far" when with moderate pressure, you're seeing wax lines... as on a pen when you rotate it around, you'll see a line of wax along the pen body.. That's a bad thing because it will gum up and not give you a good shine or feel.. Experiment with different amounts of was and different pressure/movement combinations and you'll love the effect.. IMHO, buffing is a new tool and should be treated as one... you try a tool, play with it on scrap, etc., until you're familiar and comfortable with it...YMWV mac Please remove splinters before emailing |
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