Thread: Leigh R9 issues onrouter table

Have you checked the centering of the bit relative to the ebush?

Haven't seen an R9 setup but I am familiar with the ebush from the Superjigs. From memory, each step around the bush changes the effective bush diameter 0.001inch ( my superjig is an imperial one). If the bit centering is out by 0.010 inch, that is the equivalent of the entire adjustment range of the ebush.

When you say 'bit' that is that spiral cutter that you are talking about?

Yes, the router bit doing the cutting, be it a spiral or a dovetail.

Normally, you would use a centering cone mounted in the router to accurately centre the ebush relative to the router base plate then swap the cone for the router bit you intend to use. Works well provided that the router is a decent accurate one, but can be a source of disappointment if the router has slack plunge guides etc.

Also the ebush concept is dependant on the bush being installed with a particular orientation relative to the jig/work and that orientation being maintained. Check the instruction manual for details, as I forget the exact setup for the Superjigs and have no idea of the R9 requirements.

many thanks.

have tried the system on bench and the problem seems to be the same. It seems that the jig (user made) may have some problems - will recheck and see how it goes. Initial reaction to placement of pins is ok. however.

I used the jig for my jewellry box.
It did need a lot of fine tuning but I got there in the end.
I also found that some of the measurements in the manual were wrong, did you spot those?

Cheers
Tony

Thanks Tony - it seems that the measurements have been superseded by ones on the net - at the Leigh site. However there are still measurements which are out - they have not been revised.
I sorted my problems out by getting a set of verniers and checking the spiral bits that were sold to me along with the R9 - they were a mile out - moral of the story - check everything before you start using - in fact check at point of purchase (although you should not have to)!

I
I have recently bought and unsuccessfully tried to use this jig with my triton router. The adaption guide plate is so thin that it slots into the slot in the top of the treaded area on the elliptical Leigh e-bush. The result was that the pin cut was ok. When I remove the adaption plate to change the router bit for the 1/2 inch spiral bit, I did not note that the guide plate had moved into e-bush thread. I was off centre. I wrongly??? assumed that it would be self-centring

I started the router heard a rattle.

Stopped the router.

Re-centred everything tried again and as soon as the bit took a sizeable bite out of the wood the bit touched the e-bush and destroyed it.

I cannot blame Leigh for this entire fault as the e-bush could, maybe, not have been tight enough, but with the guide plate slipping into the slot of the tread I would like someone to explain to me how there can be an accurate repeatable performance from this setup. The guide bush and the e-bush create 2 elliptical arcs as you turn them and it will be hard to get an accurate repeatable performance if the last setup was good. Only the e-bush should move.

If you loosen the e-bush and turn it slightly you may fall into the same trap as I did and cause the e-bush to be off centre and bang! big surprise.

The R9 seems well made and is a good idea. The triton adaption plates seem not to be that well made.
The cost of a new Leigh e-bush is only $16.00, not expensive, but a frightening and annoying experience.
I am currently waiting for a Leigh guide (not triton) plate for my router.
I will repost an update when I get it.

Thanks Greg
I'm just about to get my R9 out of the box having
purchased it at the Brisbane Working with Woodshow
last week. Appreciate your story.

Anthony

Well I finally received and tried out the Leigh adaption plate on my triton router. There is a big difference in the quality of this plate to the quality of the Triton adaption plate. I strongly recommend that if you have a triton router and want to buy the Leigh R9, insist on the Leigh adaption plate for your router. It has very little chance of letting the guide bush drift into the router bit.

Gregg,
Did you have Petrel's problem on another thread of getting the adaptor plate flush with the table top?
How exactly does it fit into the Triton plastic insert ring? Or does it replace the plastic insert ring?

You need to clear your message inbox before I can reply to your message.
chris

Originally Posted by Chrism3

Gregg,
Did you have Petrel's problem on another thread of getting the adaptor plate flush with the table top?
How exactly does it fit into the Triton plastic insert ring? Or does it replace the plastic insert ring?

Hi Chris I have not tried the jig on the table, but I will set it up and get back to you within this week.

Greg,
I later found what I believe to be the correct combination of pieces, although I have not yet used it to cut dovetails.
https://www.woodworkforums.com/attach...triton-001.jpg

https://www.woodworkforums.com/attach...triton-002.jpg
regards
Chris

That looks neat Chris. I have not used my jig for sometime now I found cutting Dovetails on my bandsaw quicker and while not as neat they look reasonably good. I made a 15 degree wooden table jig, which I clamp to the bandsaw table and then use spacers to align the pins. I mark out the tails from the pins and cut them freehand with the bandsaw. I found this video on YouTube Dovetail joints on the bandsaw - YouTube and it is basically how I do it. The Leigh jig cuts perfect dovetails, but I like this method better.