Increasing the effective length of the cutter will exert more bending action on the spindle, which now seems to be bent. This is in an even more dangerous condition and the end could just fly off with serious consequences.
Jonathan regards to your original question i would stick with 1.5Kw as your machine has some flex issues which you yourself have mentioned, going for an even more powerful motor will allow you to think you can push it further than it wants to go.
A machine is only as strong as its weakest link.
That price you found does seem to be too good to be true btw.
Regarding cutter length Trend do indeed make 8mm shank cutters in the length of 60mm + square ended but even Carbide cutters are mounted on HSS shanks.
HSS cannot bend, only break that is what makes them a safer bet than an extension made from anything other than HSS which Trend will not make that type of extension as it would be dangerous.
It may be good to see if trend have some videos of when it all goes wrong.
The British team going for a new LSR of 1000MPH the wheels will be going around 10000 RPM they have to to be made of exotic metals as they are likely to explode, centrifugal force is an extremely potent force indeed.
im all for the saftey :) however in my opinion every good engineer exercises a bit of art to get the job done
if we didnt push the limits and test the boundries we would still as a race be swinging through the trees eating bannanas
id go for the home made extension... however, at router speeds id keep my distance and one finger on the e-stop :)
I checked my router with dial indicator. It's now holding the cutter at an angle such that there's more runout the further you get from the chuck. I'm not going to try running it like that - clearly not safe.
Ok, I will do. It's still twice the power of my milling machine and I've never run out on that. As you say the router is not as rigid as the milling machine, so I can't see it being able to use more power. I may well lower the gantry to help with the rigidity issues.
http://www.amanatool.com/bits-fv/45500.html or http://www.machines4wood.com/mall/pr...sargeant/CM103
I've used them on a manual machine to cut beech and they worked well but you need a light final finishing cut due to the flex.
On the other hand, one of the big advantages of CNC is that you can stand well away from the scene of the accident
Problem with standing well away means I'm too far away from the stop button!
Those cutters look useful, but still a compromise. I'm cutting 50mm deep to clear the material around a mould.
Yes I'll sort out the Estop buttons soon. Two should be enough considering where I'll be standing...
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