Help! Are these sash router cutters correct?

[DigitalM]

I bought this router cutter set the other day and they've been TOTALLY doing my head in, and I think I've just realised why.

http://www.axminster.co.uk/axcaliber-be ... set-718731

What I'm concerned about is this:

• The ovolo cutter has a bearing, this is set 2mm or so back, and so it creates a small shoulder
• There is no matching shoulder shaped into the scribing cutter
• Both the other images shown in the product listing on the axminster site show that this shoulder has been cut!
• Cutting the shoulder yourself using other tools is a lot of extra work
• Why in God's name would they leave that part of the profile off the scribing cutter - what possible reason is there for this?

Here are the other product shots from the page in question. I've highlighted the shoulder in question.
In both cases the recess for the shoulder has been cut. What's annoying me is, this cutter isn't actually set up to do it!

This is why I'm boggled - my attempt:

If I've bought a rubbish set of cutters, can anyone recommend any that are better.

 

[Doug71]

The mortise hole should go in the shoulder finishing right on the edge of the shoulder where the curve starts. For this reason the bottom of the scribe cutter will form the top of the tenon so it does not need or want the step at the bottom.

Hope that makes sense, it's hard to explain, someone more helpful might post a pic. The picture you have put the red circle on is deceiving because the groove you have circled is where the tenon would be sticking out.

I know what I mean but am struggling to put it in to words!

Doug

 

[Doug71]

Just looked at your photo again, traditionally the flat shoulder would be bigger then what you have made, probably half inch wide, the same width as whatever mortise bit you are using as the mortise hole is normally full width of the flat shoulder.

Doug

 

[DigitalM]

Hi Doug

I was expecting something like this:

In this case, the face of the tenon is formed by the top cut after a shoulder was scribed.

 

[Doug71]

Afraid your scribe cutter won't do that, you would have to cut the scribe for the shoulder some other way.

Looks like Trend might do what you want.

http://www.trend-uk.com/en/UK/productli ... tters.html

Doug

 

[DigitalM]

Thanks. Pricey mind!

But that does appear to be exactly the profile, and cuts out a very dull set of steps.

Thanks Doug.

 

[DigitalM]

These look ok too, bit cheaper:

https://www.wealdentool.com/acatalog/On ... o_646.html

 

[Phil Pascoe]

https://www.wealdentool.com/cgi-bin/ss0 ... TION=Go%21
You can usually buy different bearings which will get rid of the quirk.
Wealden are extremely good cutters, their mail order is second to none and they are cheaper than Axi.
Your cutters might not be right, but they are not rubbish, they're perfectly OK.

 

[DigitalM]

Thanks Phil & Doug,

I've ordered some that are more in line with what I'm trying to do, from Wealden.

 

[DigitalM]

The new cutters have arrived from Wealden Tool Company and they look freakin' awesome!

 

[Phil Pascoe]

Told you their mail order was good.

 

[DigitalM]

Yes, nice to get all the confirmations of what's happening with your cash/order. Thanks for the recommendation Phil.

 

[DigitalM]

hey Phil.p

I've used the new Wealden Tool Company ovolo and scribe and they're awesome. I've managed to get my head around the geometry (eventually) and have a perfectly cut test piece that gives me the confidence to have a go in some better wood.

 

[Phil Pascoe]

I've not used that combination, but I've used Wealden stuff just about since they the company was formed - 1985, and I've not had a single problem in those years.