Fluffy mdf

[Steven W]

It's a basic Chinese machine. I didn't want to spend a lot of money on something that didn't suit what I was doing. The table is 300x400 and the models I cut are from a blank 300x300. The spindle is 1.5kw water cooled. One of the issues I have is getting the 6mm cutter Far enough into the Collet. The cutter that came with the machine is exactly 6mm and fits great but bits you buy in the UK are quarter inch. I struggle to get the bit far enough up the collet to screw the lock nut on. This may be causing the chatter?

[JAZZCNC]

The cutter that came with the machine is exactly 6mm and fits great but bits you buy in the UK are quarter inch. I struggle to get the bit far enough up the collet to screw the lock nut on. This may be causing the chatter?

If your spindle can take 8mm collet then buy 8mm shank tooling this helps with reducing chatter, you can get 6mm cutter with 8mm shanks. Look here. . Wealden Tool Company Limited Up Cut


To use 1/4 tooling you really need a 7mm collet. Trying to force 6.35 into 6mm will reduce collet life.

[richie00boy]

I got my 1/4 inch collet for my spoil board surfacing cutter from Arc Euro Trade.
ER Collets - Arc Euro Trade

And the collet nut from ebay seller onlineseller68.
Collet Chuck holder, Cutting tool Endmills items in YSTOOL store on eBay!

[DrNik]

silly question but you are going the right way,i mean the spindle is actually turning in the right direction to the tool

[nifty1a]

It's a basic Chinese machine. I didn't want to spend a lot of money on something that didn't suit what I was doing. The table is 300x400 and the models I cut are from a blank 300x300. The spindle is 1.5kw water cooled. One of the issues I have is getting the 6mm cutter Far enough into the Collet. The cutter that came with the machine is exactly 6mm and fits great but bits you buy in the UK are quarter inch. I struggle to get the bit far enough up the collet to screw the lock nut on. This may be causing the chatter?

You should never force a 1/4" shank into a 6mm collet or clamp down a 1/4" collet onto a 6mm shank... You'll either damage the collet, the bit won't run true, damage the spindle with the out of balance load or all the above.

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