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1850 Horn Build pics
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Insomnia View Drop Down
Old Croc
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    Posted: 04 November 2008 at 6:16pm
 Jig placed on side- follow round with router
 jig removed 6mm rebate where panels slot
If anyone would like some help with making jigs or rebating get in touch


Edited by Insomnia - 19 December 2008 at 3:38am
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CHAMPION View Drop Down
Old Croc
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Can you sell the Template jigs
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mrchay View Drop Down
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Points: 565 		Post Options Post Options   Thanks (0) Thanks(0)   Quote mrchay Quote  Post ReplyReply Direct Link To This Post Posted: 05 November 2008 at 9:47am
This is definately the way to go... I guess the trick is to make the jig very accurately.
Looks like you would get a considerable extra amount of strength of the cab - rebated glued joints incredibly more strong than just edges glued..

Any tips on making a good jig?

Plus the thought does occus that once you have a good jig made, you could turn out top notch cabs as quickly as you could get your mitred panels cut...
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Saul View Drop Down
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Points: 5912 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Saul Quote  Post ReplyReply Direct Link To This Post Posted: 05 November 2008 at 11:10am
thats not really true considering that when woodglue dries its considerably stronger than the wood itself. Rebating is time consuming - a much quicker and just as effective option is to biscuit the joints. 
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Wrighty View Drop Down
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Rebating with a jig is definitely the way to go. If I'd had time, I'd've done mine like that. Plenty of screws and polyurethane wood glue did the trick though.
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eltron View Drop Down
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Points: 399 		Post Options Post Options   Thanks (0) Thanks(0)   Quote eltron Quote  Post ReplyReply Direct Link To This Post Posted: 05 November 2008 at 11:42am
Originally posted by Saul Saul wrote:

thats not really true considering that when woodglue dries its considerably stronger than the wood itself. Rebating is time consuming - a much quicker and just as effective option is to biscuit the joints. 


Well, woodglue does get stronger than wood itself, but by rebating let's say 6mm you will almost double the gluing surface, which (you guessed it!) makes the cab stronger.
Biscuiting is just as effective, but by rebating with a jig you get the panel locations all laid out at once.


Edited by eltron - 05 November 2008 at 11:43am
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mrchay View Drop Down
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The reason this looks like such a good plan is because the rebating should actually be very easy.

The jig panel could be created using a larger cutout, say 22mm.
Then a 22mm guide bush would be used with a 18mm cutting bit to create perfect side panel after perfect side panel. Using a guide bush would ensure that the jig would last a long time and remain true.

Apart from the mechanical strength advantage (6mm rebate, glue+screws will be stronger than glue+screws, as well as biscuits glue and screws), the point is that once the sides are cut perfectly, the other panels just slot in - no trouble to line things up at all.
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Insomnia View Drop Down
Old Croc
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Points: 1721 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Insomnia Quote  Post ReplyReply Direct Link To This Post Posted: 05 November 2008 at 2:45pm
hi guys
 
This is the jig i used its made from 9mm birch
 
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darkmatter View Drop Down
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Points: 2419 		Post Options Post Options   Thanks (0) Thanks(0)   Quote darkmatter Quote  Post ReplyReply Direct Link To This Post Posted: 06 November 2008 at 12:46am
Originally posted by Saul Saul wrote:

thats not really true considering that when woodglue dries its considerably stronger than the wood itself. Rebating is time consuming - a much quicker and just as effective option is to biscuit the joints. 


but rebates can make assembly easier and can help guarantee accuracy and consistency
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djstefanos View Drop Down
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youre also adding more "glue contact" surface area, making it stronger.
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Points: 1036 		Post Options Post Options   Thanks (0) Thanks(0)   Quote tommysb Quote  Post ReplyReply Direct Link To This Post Posted: 06 November 2008 at 10:49am
Great post, thanks steve. Are you still winding up your cab building operations?

For those templates - how to you get the width of the cut? Multiple passes with a narrower bit? How accurate must you be when cutting the panels to go into rebated slots - I'd imagine if you don't get them completely perpendicular to the sides, putting on the final side of the cabinet the rebates might not line up.

Or does the use of rebates ensure that it all stays 100% square?
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Saul View Drop Down
Old Croc
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Points: 5912 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Saul Quote  Post ReplyReply Direct Link To This Post Posted: 06 November 2008 at 10:50am
ok so maybe it slightly increases glueing area but assembly? nah.... thats the whole point of biscuits. 
bit of a stupid debate really. 
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