Cyclone X Axis Dovetail Repair

All info relating to the Denford Cyclone lathes

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CNC Apprentice
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Posts: 77
Joined: Sat 01 Aug , 2015 9:23 am
Hardware/Software: 2001 Cyclone with toolchanger and Fanuc 21i control
Serial number - H00913.
Voltage 415V F.L.C 20A 50Hz 3Ph

1997 Triac VMCwith toolchanger and Fanuc O-M control
Serial number - 70826B.
Voltage 415V F.L.C 30A 50Hz 3Ph

Cyclone X Axis Dovetail Repair

Post by jamesgates1000 » Sat 09 Feb , 2019 13:03 pm

Just thought I would put this here in case it helps anyone...

Had some problems with the lathe especially parting off, could push and pull the turret up and down about 0.5mm. Put clock everywhere and couldnt pin point where the play was, then the dovetail fell off, must have been cracked (probably tightening the Gib didn't help)
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Milled away the bad part
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then machined an insert out of a bit of cast iron
[[[[[[.jpg (564.56 KiB) Viewed 328 times
Finished assembly...
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20190203_155629.jpg (244.99 KiB) Viewed 328 times
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Ballscrew had a 3mm bend in it so had to straighten...
[[[.jpg (244.18 KiB) Viewed 328 times
Got it pretty good and had the machine up and running to get some rush jobs out but will invest in a new one.

Anyone have a recommendation for replacement ballscrew suppliers?

CNC Apprentice
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Hardware/Software: Denford Cyclone P
EMCO PC Mill 100
Solidworks 2018
Location: Horsham, UK

Re: Cyclone X Axis Dovetail Repair

Post by SimonRafferty » Sat 02 Mar , 2019 14:58 pm

You've made a nice job of the repair.

Sadly, I don't have any Ballscrew ideas other than someone like There's are not bad quality - but you have to machine the end yourself to suit.

Seeing what you've done above, this is not going to be a problem for you!

To be fair, even the (decent quoted tolerance) ones from AliExpress are pretty good - just potentially a bit of a gamble.


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