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PostPosted: Mon Aug 06, 2007 1:32 am 
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Cocobolo
Cocobolo

Joined: Sat Jul 30, 2005 1:35 am
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Location: Australia
I have been meaning to put this up for while. I found the process of laying the purfling a bit tricky and wondered whether there was an alternative approach. I had been messing around with a homemade vacuum and thought that I might be able to form the rosette grouping of purfling veneers in the round.

The process entailed wrapping the veneers, polycarbonazte sheet, vinyl vacuum sheet around a pipe and applying the vacuum for about an hour. The formed rosette purfling was then sliced using the fret slotting saw to produce 0.080"/2mm slices.



regards

Tim


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PostPosted: Tue Aug 07, 2007 1:32 am 
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Cocobolo
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Location: Australia
I had an opportunity to take a couple of close up images. I will put up a few images of my vacuum form tomorrow





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PostPosted: Tue Aug 07, 2007 1:46 am 
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Brazilian Rosewood
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Joined: Wed Feb 01, 2006 3:25 am
Posts: 3788
Location: Russellville, Arkansas
Tim that worked very nicely.

Look forward to the pics of the vac form.

I'm stuck on individual lines from Martin.

This is intriguing however.

Thanks for sharing.

Question: How did you saw them? TIA

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PostPosted: Tue Aug 07, 2007 1:47 am 
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Brazilian Rosewood
Brazilian Rosewood

Joined: Sat Jan 08, 2005 1:26 am
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Location: United States
Tim, what do you slice them with? I've had some bad luck using a bandsaw on cylindrical stuff like that.


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PostPosted: Tue Aug 07, 2007 1:58 am 
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Contributing Member
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Joined: Mon Mar 19, 2007 7:05 am
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Location: United States
First name: Waddy
Last Name: Thomson
City: Charlotte
State: NC
Focus: Build
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[QUOTE=Pwoolson]Tim, what do you slice them with? I've had some bad luck using a bandsaw on cylindrical stuff like that. [/QUOTE]

I believe he said he uses a fret slotting saw blade.

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PostPosted: Tue Aug 07, 2007 2:02 am 
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Cocobolo
Cocobolo

Joined: Sat Jul 30, 2005 1:35 am
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Location: Australia
Thanks Waddy.

That is correct however I should qualify it by saying that I tape up the lamination end to complete the circle and then place them in a cradle just above the fret slotting table saw blade and revolve the form to slice the rosette laminations. I will make sure I post a few pictures tomorrow.

Tim


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