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Help. Pen blanks getting discoloured

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Forum topic by chickenguru posted 11-25-2014 02:06 AM 847 views 0 times favorited 7 replies Add to Favorites Watch
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chickenguru

45 posts in 2456 days


11-25-2014 02:06 AM

Hello I’m a new to pen turning. I just bought a 30 pk fun line pen kit s from pen state and bushing. All my darker woods look great but with some light coloured woods it seems fine dust from the bushings are causing this. I sant 120,240,400. The use the beall buffing system. Even the tripoli pulls dark from brass mandrel nut and also tried just brass spacers between the blanks for sanding. Thanks for the help and suggestions


7 replies so far

View TheDane's profile

TheDane

4997 posts in 3125 days


#1 posted 11-25-2014 02:55 AM

Are you sanding the bushings when you sand the blanks?

-- Gerry -- "I don't plan to ever really grow up ... I'm just going to learn how to act in public!"

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chickenguru

45 posts in 2456 days


#2 posted 11-25-2014 04:06 AM

As little as possible but when I try to get the blank level with the bushing as I’m relatively new to turning

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TheDane

4997 posts in 3125 days


#3 posted 11-25-2014 02:33 PM

The contamination you are getting is the result of residue created by an abrasive (sandpaper, Beall system, etc.). When you are turning, the key is to get as close as possible to the bushing without hitting it with a tool. Then sand very carefully.

I wouldn’t use the Beall system while the pen blanks are mounted on the mandrel.

-- Gerry -- "I don't plan to ever really grow up ... I'm just going to learn how to act in public!"

View Kayakerjim's profile

Kayakerjim

2 posts in 741 days


#4 posted 11-25-2014 05:50 PM

I had the same problem when making pens from light colored woods. I solved it by sanding carefully. Sand only the wood, not the bushing. If you do get some bushing dust on the wood, it can be sanded away but you will need to start over on your grit schedule.

Good luck,
Jim

View Kenbu's profile

Kenbu

29 posts in 1343 days


#5 posted 11-25-2014 11:28 PM

Hi, Chick and welcome to the hobby. You may want to consider turning between centers (without bushings or mandrel) or using some nylon finishing bushings instead of the metal ones for final sanding. Also, I recommend you check out the IAP at www.penturners.org.

Ken

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woodbutcherbynight

2424 posts in 1871 days


#6 posted 11-27-2014 02:25 AM

For lighter colored woods I have replacement bushings I made of spare pen tubes and maple with polish on them. When I have cut the blank to size and am ready to sand a little I replace the metal bushings with the maple ones and sand as needed then add the finish. If you glue a few cut blank shorts together and mix in a light colored wood you will have the same issue. (This has been one reason I do not mix them.) The dust from the darker woods will make the lighter colored ones look dirty. When I have wanted a light color for fan pulls I use some Corian. It does not care about the dust as it cannot absorb it. Hope this helps and keep at it.

-- Live to tell the stories, they sound better that way.

View Wildwood's profile

Wildwood

1882 posts in 1597 days


#7 posted 11-27-2014 02:18 PM

Using a shop vac, compressed air, wiping down blank with alcohol will remove sanding dust whether from bushings or wood itself. Compressed air about the best and easiest method, but shop vac or wiping down the blank with alcohol works too!

-- Bill

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