Replacement LN Iron/Chipbreaker does not fit!

[dchenard]

Here are a couple pics of my LN CB "surgery"...

The problem:

Solution viewed from the "front" (the side you see when the blade/CB are installed in the plane):

And viewed from the "back":

Apologies for the fuzzy pictures, I need a macro lens for my camera...

I did not bother to clean/polish the CB, it's a tool after all...

HTH,

DC

 

[Tony Zaffuto]

I had the same issue with a LN chip breaker on a Bailey #4. My solution was similar to Denis Chenard. What I did was mill the slot larger to so that the yoke would work correctly, and then braze in metal to make the slot the correct size, in the correct location.

I posted this solution on another forum (can't remember which). Before performing the surgery, I did telephone LN and was told to send the chipbreaker back and they would send another (this one was supposed to have been the correct one), but I was skeptical about having similar issues with the replacement. I told the customer service rep that I was going to try to alter the chipbreaker (I actually think it was Tom LN himself). Whoever it was said if it still didn't work, to still return it and they would get me one that would!

 

[David C]

There was unfortunately a variation in the spec of chipbreakers/capirons in the past.

The critical dimension is front edge of C/B to front edge of slot, (for Y lever).

If this dimension is not correct for your plane the adjustment does not work. What's more it cannot be made to work if you wish to set the C/B edge close to blade edge.

I came across this problem when filming my Plane Tuning DVD, and it seems to be more prevalent in no 5s than other planes.

I had about ten planes in pieces, for the filming process, as each feature/operation was shot in close up, medium shot and long shot.

Suggestions.
use the old C/B. The better quality, thicker blade will make a huge improvement on its own.
Ask L-N to make a special
Move the slot by the methods suggested.

I appreciate how frustrating these problems can be!
best wishes,
David Charlesworth

 

[Racers]

Hi,
I made some new blades from 3mm ground flat stock for my planes and had to do some filing of the mouths, afterwards I realised I should have filed the back of the mouth, as it’s the bevel that catches the plane body when the frog is moved back, and then if you return to a standard blade it can be returned to its original position.
The home made blades work very well and match the performance of an old laminated crucible steel Record blade from a 4 1/2 stay set plane that I picked from a car boot sale for a tenner.