A very close call..............

Kevin Sjostrand · Post by **Kevin Sjostrand** » Sun May 12, 2013 9:24 pm

So on my 7th guitar, after six times successfully using the trim bit in my hand held router to trim back the back and top after gluing them to the rims, I had an OH OH! After the fact I see that I should have been going the other direction of travel with the router at that exact spot......careless!
I am lucky. The chip out falls within my planned binding/purfling width of .210". It could have been a huge disaster!
I will pass this on to say "be every so careful when you are doing this procedure". I was only taking about a 3/16" bite into the top edge here, but it was too much. This procedure always makes me nervous.....now I know why!!!

Kevin

tippie53 · Post by **tippie53** » Sun May 12, 2013 10:07 pm

we all had this happen from one time or another . When it happens it can be a design enhancement opportunity.

Kevin Sjostrand · Post by **Kevin Sjostrand** » Sun May 12, 2013 11:00 pm

John, in your experience, should I fill that tear out before I rout for the purfling? Any change that bit is going to grab a rough edge and tear some more?

Kevin

B. Howard · Post by **B. Howard** » Mon May 13, 2013 5:50 am

As long as there is not a crack in the spruce there should be no need to fill anything.

Ben-Had · Post by **Ben-Had** » Mon May 13, 2013 9:24 am

tippie53 wrote:we all had this happen from one time or another . When it happens it can be a design enhancement opportunity.

I did that once and it became a burst finish - gone!

Kevin Sjostrand · Post by **Kevin Sjostrand** » Mon May 13, 2013 9:43 am

No crack, it just chipped out. Just leary that the bit might grab it when cutting the purfling channel. Never had to deal with this before as I said.

Kevin

Ben-Had · Post by **Ben-Had** » Mon May 13, 2013 12:43 pm

Kevin Sjostrand wrote:No crack, it just chipped out. Just leary that the bit might grab it when cutting the purfling channel. Never had to deal with this before as I said.

Kevin

I think if you make sure your bit is super sharp and rout down hill you'll be fine.

Kevin Sjostrand · Post by **Kevin Sjostrand** » Mon May 13, 2013 1:13 pm

Thanks Tim, I'm sure you are right. I now see that I did not come down far enough from the center of the bout when I was coming down the side......not paying attention!!

Kevin

Darryl Young · Post by **Darryl Young** » Tue May 14, 2013 12:19 pm

As Ben suggested, make sure your bit isn't dull.

Kevin Sjostrand · Post by **Kevin Sjostrand** » Tue May 14, 2013 12:48 pm

New bit, only for tops and only used twice so far.

Kevin

www.KitGuitarsForum.com

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