Festool Domino cutter stuck

[ajones]

Yes best to not tighten much at all,I use a spanner but apply v little pressurewhen fitting a cutter  and they do seem to tighten during use, and you do sometimes need to apply more pressure than you are comfortabe with to loosen

I do not believe applying oil would be helpfull, but always using a sharp cutter and never forcing the speed of plunge into the material should minimise
wind-up of the cutting tool on its mounting.

 

[Stone Message]

The only way I could get graphite onto my thread was from the graphite oil that I have - so the oil is not the important agent it is the graphite.

Peter

 

[RONWEN]

Yes best to not tighten much at all,I use a spanner but apply v little pressurewhen fitting a cutter  and they do seem to tighten during use, and you do sometimes need to apply more pressure than you are comfortabe with to loosen

I do not believe applying oil would be helpfull, but always using a sharp cutter and never forcing the speed of plunge into the material should minimise
wind-up of the cutting tool on its mounting.

That is another good user point -- the plunge rate using the Domino should be somewhat slower than that of a biscuit joiner (for those that use both).  The periphery of the biscuit cutter can cut/remove chips much quicker than the end-milling action of the Domino cutter.  

 

[Ken Nagrod]

When your cutter gets stuck like this, you want to be careful that you don't force the machine out of alignment in the process. Make sure that the force of the wrench is being applied up/down with respect to the pivot motion of the machine. Do not pull sideways. Notice how the wrench in the image below is horizontal and not vertical. If the wrench was vertical, your force would be pushing the mechanism sideways, and this could throw the sweep off-center. When the wrench is horizontal like this, your force will be either up or down.

I hope that makes sense. This was a tip passed on to me from David McGibbon from the service department.

[attachimg=#]

Thanks Rick and David.  Unfortunately for me, the damage is done.  For a while I've been wondering why it acted so screwy.

 

[RONWEN]

When your cutter gets stuck like this, you want to be careful that you don't force the machine out of alignment in the process. Make sure that the force of the wrench is being applied up/down with respect to the pivot motion of the machine. Do not pull sideways. Notice how the wrench in the image below is horizontal and not vertical. If the wrench was vertical, your force would be pushing the mechanism sideways, and this could throw the sweep off-center. When the wrench is horizontal like this, your force will be either up or down.

I hope that makes sense. This was a tip passed on to me from David McGibbon from the service department.

[attachimg=#]

Thanks Rick and David.  Unfortunately for me, the damage is done.  For a while I've been wondering why it acted so screwy.

Rick, Do you know the re-alignment procedure to share? 

 

[Ken Nagrod]

Ron,

Lester had previously told me that the Domino has to be sent in.  It's mounted in a special alignment jig and if you look at the screws on the bottom, they are not security screws that I've ever come across.  Probably specially made for Festool to prevent tampering or adjustment by anyone but them.

 

[Rick Christopherson]

Rick, that is a great tip that I've never paid attention to myself.  I assume this is another of the plethora of omitted user rules that are not included in the fortune cookie length type Festool instruction manual that came with my Domino.  

But does that have anything to do with a bit jam in itself?  Or is that just an aside you're bringing forward somewhat related to this thread in proper bit administration?

I sincerely remain your faithful servant and eagerly await your reply oh master.  

No, it is not related to the bit being stuck. To reduce the chance of it happening, don't over tighten the bit. If you want to remove the possibility, then you could use a really thin plastic washer between the bit and the shaft. The washer will "give" a little and reduce the chance of the threads locking so tightly.

To extract a really tight bit like this, a very slight impacting motion could free it up without stressing the machine too much. This is only a guess on my part, but if you could apply pressure to the wrench with a vibratory action, it may be sufficient. Possibly with something like pressing down using the pad of an orbital sander. That may not be sufficient in terms of an impacting motion, but it is the only thing that comes to mind.

 

[RONWEN]

Rick, that is a great tip that I've never paid attention to myself.  I assume this is another of the plethora of omitted user rules that are not included in the fortune cookie length type Festool instruction manual that came with my Domino.  

But does that have anything to do with a bit jam in itself?  Or is that just an aside you're bringing forward somewhat related to this thread in proper bit administration?

I sincerely remain your faithful servant and eagerly await your reply oh master.  

No, it is not related to the bit being stuck. To reduce the chance of it happening, don't over tighten the bit. If you want to remove the possibility, then you could use a really thin plastic washer between the bit and the shaft. The washer will "give" a little and reduce the chance of the threads locking so tightly.

To extract a really tight bit like this, a very slight impacting motion could free it up without stressing the machine too much. This is only a guess on my part, but if you could apply pressure to the wrench with a vibratory action, it may be sufficient. Possibly with something like pressing down using the pad of an orbital sander. That may not be sufficient in terms of an impacting motion, but it is the only thing that comes to mind.

I wasn't aware these over-tight cutters are such a chronic problem for some.
Rick seeded an idea -- possibly make up something similar to a deep-well socket that securely fits the 500 cutters (10mm I think  [unsure]), it could be popped onto the new TI drill and be used in the LOOSENING DIRECTION ONLY to remove the cutters.  Under NO circumstances should it ever be used to install the cutter(s).  [scared]
Just a thought.