Dancing Chips / How (Not) To Abuse A Horizontal Mill As A Circular Saw

Don't do this at home! (Unless you hate your neighbours :-) )
Cutting a 3 mm mild steel plate with a slitting saw on my Thiel Duplex 158 in horizontal mode. The job was pretty noisy and created dancing chips due to the quick and dirty setup. I don't recommend doing it this way. Clamping a parallel underneath the plate helped (at bit).

[@oldfarthacks]

Ah the sweet music of the cutting of the slot. Thanks for the video.
And yes, a little more damping would be useful. If nothing else another clamp or two at about the middle would have helped.

[@wilhelmmmmm]

Blech dröhnt halt immer. Eventuell wäre holz darunter etwas leiser. Trotzdem schön gesägt. Gruß Wilhelm

[@TheSuntravel]

you have a severe runout on the blade. Feed and rpm is to low for me...

[@HaraldFinster]

Yes, it was a pretty old blade from an unknown source. RPM was 140/min. If I am not mistaken this results in approximately 40 m/min for a 90 mm blade. This should be okay for a HSS cutter.
I fed manually - yes, pretty slow as I didn't want to risk the teeth of the blade catching the material.
The main issue of my initial setup certainly was the lack of support in the center of the plate. As I wrote: I don't recommend doing it the way shown in the video, which is more a "how not to do it".

[@Freetheworldnow]

Horrible...
You can do it but with a stiffener and going full bore and reduce your rpm.

[@HaraldFinster]

yes, of course. I taped a piece of adhesive band on a parallel and clamped it underneath the work. This helped a lot. Clamping from the top would have been possible but I didn't have a suitable piece of flat bar at hand.