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Pergola #6: The best laid plans...

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Blog entry by Bermuda_Les posted 04-26-2015 09:40 PM 1103 reads 0 times favorited 6 comments Add to Favorites Watch
« Part 5: After a long delay, back on the job... Part 6 of Pergola series Part 7: Made major progress this weekend... »

I’d love to be able to say that all went well in this weekends pergola work, but sadly that’s not the case. The jig performed as expected, and dare I say was doing a grand job until all of a sudden something went horribly wrong.

The wood was just to much for the equipment. Either the 3” pattern bit (1/2”) bent or I’ve forever damaged the shaft of my $300 – $400 Bosch router, I’m hoping it’s the bit. But it suddenly started to vibrate uncontrollably, chattering and making a hell of a noise. Needless to say that put an end to cutting the notches.

I’m just going to have to put the pergola together with construction grade joist hangers and rafter ties. So much for trying to apply fine woodworking techniques to construction grade lumber. I just couldn’t pull it off.

Probably next week I’ll be putting the pergola up using construction techniques instead. It’ll go up quicker, it just won’t look as awesome as I had hoped. Oh well… some things just aren’t meant to be.

Stay tuned… :(

-- Making sawdust in Bermuda. It's a dirty job, but someone has to do it!



6 comments so far

View HerbC's profile

HerbC

1592 posts in 2326 days


#1 posted 04-26-2015 10:39 PM

Looking at the jig you made, the problem I see is that you tried to use the router to hog out all that material, which due to the design of the jig put a lot of side force on the very end of the long bit. Pattern bits are meant to cut along the side of the bit and ideally should be taking off just a thin skim cut to reach final size/shape.

You could probably have cut the notches pretty quickly with a decent handsaw. Sometimes the “old ways” are still the best ways.

Good Luck!

Be Careful!

Herb

-- Herb, Florida - Here's why I close most messages with "Be Careful!" http://lumberjocks.com/HerbC/blog/17090

View pintodeluxe's profile (online now)

pintodeluxe

4859 posts in 2280 days


#2 posted 04-27-2015 02:26 AM

It’s quite possible it only damage the collet. Chuck another bit in the unplugged router, and see what it looks like when spun by hand. If your other bits wobble too, the collet is damaged.
In the future, try jig sawing close to the line, then finish with a light router cut and your jig.

-- Willie, Washington "If You Choose Not To Decide, You Still Have Made a Choice" - Rush

View Bermuda_Les's profile

Bermuda_Les

123 posts in 696 days


#3 posted 04-27-2015 11:08 AM



Looking at the jig you made, the problem I see is that you tried to use the router to hog out all that material, which due to the design of the jig put a lot of side force on the very end of the long bit. Pattern bits are meant to cut along the side of the bit and ideally should be taking off just a thin skim cut to reach final size/shape.

You could probably have cut the notches pretty quickly with a decent handsaw. Sometimes the “old ways” are still the best ways.

Good Luck!

Be Careful!

Herb

- HerbC

Herb,

You are so right! It was way to much for job at hand. I had tried using a jig saw previously, but this treated lumber just brought that saw to its knees. But some form of saw was probably best for this task, but I’m done fussing with it now, I need to get this up, other projects await. Thanks for your input, much appreciated.

-- Making sawdust in Bermuda. It's a dirty job, but someone has to do it!

View Bermuda_Les's profile

Bermuda_Les

123 posts in 696 days


#4 posted 04-27-2015 11:11 AM



It s quite possible it only damage the collet. Chuck another bit in the unplugged router, and see what it looks like when spun by hand. If your other bits wobble too, the collet is damaged.
In the future, try jig sawing close to the line, then finish with a light router cut and your jig.

- pintodeluxe

Pintodeluxe,

I hope that’s all it is. I had a look at the collet with a bit in it, turned the router on and it looked OK, but I didn’t have another bit readily at hand. I’ll try another bit and see what it looks like. Thanks for the tip.

-- Making sawdust in Bermuda. It's a dirty job, but someone has to do it!

View ButchCassidy's profile

ButchCassidy

25 posts in 725 days


#5 posted 04-27-2015 11:17 AM

Well it was a good plan, just toooo much for the operation But patient will recover, just a different scalpel is needed. Hang in there and post pics. Good Luck

-- " If you want your PRAYERS to be answered" get off your knees and go to work

View Bermuda_Les's profile

Bermuda_Les

123 posts in 696 days


#6 posted 04-27-2015 11:23 AM



Well it was a good plan, just toooo much for the operation But patient will recover, just a different scalpel is needed. Hang in there and post pics. Good Luck

- ButchCassidy

Thanks Butch,

Until it all went wrong it was working wonderfully!!! Famous last words!! Hahaha. Well, I’ll pick up the joist hangers and hurricane ties this week, and will start erecting on the weekend. Will be sure to post pics.

-- Making sawdust in Bermuda. It's a dirty job, but someone has to do it!

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