Elu dovetailing jig - bushing diameter please? - Router Forums
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post #1 of 24 (permalink) Old 12-08-2017, 01:28 PM Thread Starter
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Default Elu dovetailing jig - bushing diameter please?

Hi everyone,

I bought this used jig today. The vendor said it is an Elu but I am aware that it is pretty generic and sold under many names. The original bushing is no longer with it, but the vendor did give me a dovetail cutter which he thinks is the correct one.
Can anyone please confirm the OD of the correct bushing please? The fingers seem to be 11.2 mm (~0.4") apart.

The pic is from the instruction book, I've taken the jig apart to clean it up a bit.

Many thanks - JC
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post #2 of 24 (permalink) Old 12-08-2017, 03:04 PM
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Not for sure about that jig, but it looks a lot like my leigh and porter cable which both use a 7/16 guide bushing.
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post #3 of 24 (permalink) Old 12-08-2017, 04:14 PM Thread Starter
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Quote:
Originally Posted by fire65 View Post
Not for sure about that jig, but it looks a lot like my leigh and porter cable which both use a 7/16 guide bushing.
Fire65 - thank you so much for taking the trouble to reply. May I ask you some more detail please? are the fingers and spaces the same size on your jigs? They seem to be the same on mine, but on youtube I see similar jigs with different sizes. Does the 7/16" bushing fit exactly in the spaces, or is it a loose fit, ie you rout in one side and then out the other? It looks like the 7/16" corresponds with the measurements I took, which is giving me great hope! I have a set of Bosch guides, therefore probably metric, but I know a machinist who will easily make a collar if I need one. I have a little Elu router as well, its bushings attach with two screws, so I might get lucky, and a Milescraft inlay kit which has a few different plastic guide bushes.
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post #4 of 24 (permalink) Old 12-09-2017, 11:13 AM
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The Porter Cable, which looks exactly like the Elu, has 1/2" gaps in the fingers, the Leigh is adjustable. I am not familiar with the Elu router, if the Bosch guides fit the router base I see no reason why they would not work.
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post #5 of 24 (permalink) Old 12-09-2017, 01:15 PM Thread Starter
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Default Making progress slowly...

Quote:
Originally Posted by fire65 View Post
The Porter Cable, which looks exactly like the Elu, has 1/2" gaps in the fingers, the Leigh is adjustable. I am not familiar with the Elu router, if the Bosch guides fit the router base I see no reason why they would not work.
Thanks again. I've re-assembled the jig and I'm checking what bushes I have. The spacings on mine are 3/8" or just over 10 mm, so even though there is in fact a 7/16" bush in the Bosch kit, it aint going to work. Only the smallest bush in the kit is fitting in between the jig's fingers, and the dovetail cutter barely clears it. Bosch bushings are a unique bayonet fit, not the standard screw-in type, they won't fit the Elu. It's too cold out in my shed to do any more this evening (-6C) so I'll get back to it tomorrow - next step is to mill some wood and commence experiments.

(I know the red-orange colour combination is terrible, but it's better than rust )

JC
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Last edited by JCJCJC; 12-09-2017 at 01:58 PM. Reason: accuracy ;-)
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post #6 of 24 (permalink) Old 12-09-2017, 03:59 PM
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Do you know the jig model number??

On a whim, I did a Google search for the Elu 40040 dovetail jig and found these UK parts suppliers:

https://www.partshopdirect.co.uk/elu...e-parts-s4486/
https://www.mtmc.co.uk/Product.aspx?ProductID=95239&L=1
Elu AccessoriesSpare Parts, Elu Accessories, Attachments and Unpowered Spare Parts on Power Tool Centre
Buy Spare Parts for Elu E40040 DOVETAIL JIG - E40040 Type 1 - Powertool Spares

This site links ELU with the DeWalt dovetail jigs:
https://www.toolsandpartsdirect.co.u...ig-spare-parts

If they do not have the part, they made be able to refer to a parts dealer who might??

Also found a similar Elu jig 400-47 on UK-eBay.
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post #7 of 24 (permalink) Old 12-10-2017, 04:24 AM Thread Starter
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Quote:
Originally Posted by Ray Newman View Post
Do you know the jig model number??

On a whim, I did a Google search for the Elu 40040 dovetail jig and found these UK parts suppliers:

https://www.partshopdirect.co.uk/elu...e-parts-s4486/
https://www.mtmc.co.uk/Product.aspx?ProductID=95239&L=1
Elu AccessoriesSpare Parts, Elu Accessories, Attachments and Unpowered Spare Parts on Power Tool Centre
Buy Spare Parts for Elu E40040 DOVETAIL JIG - E40040 Type 1 - Powertool Spares

This site links ELU with the DeWalt dovetail jigs:
https://www.toolsandpartsdirect.co.u...ig-spare-parts

If they do not have the part, they made be able to refer to a parts dealer who might??

Also found a similar Elu jig 400-47 on UK-eBay.
Hi Ray - I appreciate your time researching all the above - thank you. The model number is Elu 096 20 21 00 like this one:
https://www.worthpoint.com/worthoped...bnib-973875797


It seems to be older than I was led to believe - maybe 20+ years old, and it seems it was marketed primarily as an accessory for the Elu 096 router, rather than as an open-market dovetailing jig. Fortunately, I have an Elu 096 that I rebuilt completely a while back. Nowhere have I been able to find the OD of the bushing that came with the jig - I'll just have to experiment and arrive at it by the scenic route. I have easy access to machinists who can easily make one on a lathe, once I get the dimensions finalised one way or the other. Somebody here is bound to have this jig somewhere, the Elu 096 was popular and is still popular, very nice little router.

JC
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post #8 of 24 (permalink) Old 12-10-2017, 06:51 AM
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John, I could never afford a MOF96 40 years ago, but still have some documentation from a wealthier fellow woodworker. The guide bush is given as 11mm - differed from all other Elu guide bushes, which went up in even mm from 10 up.
The kit came with the attachment you show, the guide bush, the dovetail bit, and a cutter depth gauge.
The bit had to protrude exactly 15mm from the base plate. The cutter depth gauge was really just a bent piece of stiff sheet metal, formed into a U-shape, with a bolt and nut going through the base of the U, and a wing nut to secure the bolt, once properly adjusted. This allowed rapid repeat setup, but the first time still needed test cuts.
The dovetail bit used by Elu was also particular: 8mm shank , 14,3mm largest diameter, 13,5mm cutting height, 15 degree angle.
Having said that, I seem to remember trying out my old Hitachi on the attachment (fitted the same guide bush), with a different dovetail bit. Worked fine, just a bit fiddlier in getting the setup right.
The cutting movement was straight in and out - no in one side, out the other was required. which is not to say that it could not be done with a 10mm guide bushing, using the motion you describe.
BTW, there was a thread on the MOF96 here a while back - one of the contributors posted a wealth of info about Elu.
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post #9 of 24 (permalink) Old 12-10-2017, 07:15 AM
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John, I could never afford a MOF96 40 years ago, but still have some documentation from a wealthier fellow woodworker. The guide bush is given as 11mm - differed from all other Elu guide bushes, which went up in even mm from 10 up.
The kit came with the attachment you show, the guide bush, the dovetail bit, and a cutter depth gauge.
The bit had to protrude exactly 15mm from the base plate. The cutter depth gauge was really just a bent piece of stiff sheet metal, formed into a U-shape, with a bolt and nut going through the base of the U, and a wing nut to secure the bolt, once properly adjusted. This allowed rapid repeat setup, but the first time still needed test cuts.
The dovetail bit used by Elu was also particular: 8mm shank , 14,3mm largest diameter, 13,5mm cutting height, 15 degree angle.
Having said that, I seem to remember trying out my old Hitachi on the attachment (fitted the same guide bush), with a different dovetail bit. Worked fine, just a bit fiddlier in getting the setup right.
The cutting movement was straight in and out - no in one side, out the other was required. which is not to say that it could not be done with a 10mm guide bushing, using the motion you describe.
BTW, there was a thread on the MOF96 here a while back - one of the contributors posted a wealth of info about Elu.
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post #10 of 24 (permalink) Old 12-10-2017, 07:19 AM
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Interesting, looking at the document again, 40+ years ago,Elu had instructions for a simple jig to make finger or box joints, which seem to have had a resurgence in recent years. Nihil sub sole novum. did not take note at the time.
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