Chinese CNC Spindles ?

[FatgadgiParticipant @fatgadgi]

Just to finish off……. the spindle ran properly today under computer control with success.

It's plumbed in and squared up as accurately as I could.

The spindle works well and ran for a couple of hours without load to run it in without any increase in temperature at all. I cut a couple of shapes in plastic then a profile in aluminium with a 1.5mm cutter – cutting speed too slow on first attempt, but turned the wick up to 15k RPM and the finish and accuracy was spot on.

So, I'm now a very happy bunny !!

Finishing an air curtain for it now and need to seal a couple of areas for the cutting fluid and it's ready to go

Cheers – Will

[Andrew BinningParticipant @andrewbinning37010]

I have just fitted a SIEG X3 Mill with a 3Kw, 3 phase motor and VFD that runs up to 24,000 RPM. I needed 8000RPM for an aluminium (HE30) machining job with 3mm cutters. I bought the motor and drive from http://www.CNC4You.co.uk and am extremely pleased with the drive and the support from the company. I have no connections with them apart from my experience as a satisfied customer. I haven't checked the run out yet but the 3mm FC3 cutters are lasting well with coolant and compressed air to help with chip clearance. The drive motor cannot be run without cooling and CNC4YOU sell a suitable pump for this purpose, although the water barely gets warm when run for several hours ( 20 litres of water in the system ).  I intend to mount all the electronics in a separate cabinet when I have time so please forgive the temporary lash up, it is running a paying job so needs must!  I am using Mach 3 for control and intend to upgrade to a motion controller board ( also from CNC4YOU ) to use the USB port on the PC rather than the parallel port as I can then run more I/O using interface driver boards connected to the motion controller.

Good luck with your efforts.

Andrew

Doesn't look as though my link to a photo of my mill has come through so here is the link :- https://www.dropbox.com/s/iw2sh3dsggoaafb/100_2577.JPG?dl=0

 

Edited By Andrew Binning on 13/09/2014 19:08:35

[Andrew BinningParticipant @andrewbinning37010]

I know this is a very old thread but I have nearly finished the control system rebuild that I was planning when I wrote my original post on this topic. The Mill is still performing well and subsequent support from CNC4You.co.uk has been invaluable. Helpful advice given and a faulty part on the Drive Inverter was replaced for the cost of the postage!

The control system was built in an off the peg wall mounted housing which although it cost just over £100 ( sourced from RS components) was worth the expense and time saved in making a cabinet.

Although the mill was originally bought as a hobby project, a commercial job came up which required the milling of a small cube of aluminium with bored holes on three faces to close tolerances. I have subsequently produced nearly 600 of these parts and the individual machining time was about 15 minutes each. This job alone paid for the original mill investment !

[Rod AshtonParticipant @rodashton53132]

Could you post or re-post a photo of the motor spindle mounted on the X3 please.

[Andrew BinningParticipant @andrewbinning37010]

The motor spindle is available from cnc4you.co.uk. I have no connections with this company apart from having received excellent support and good products. The chuck on the spindle is an ER20.

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