Applied Automation and Engineering handle Isel rolled ballscrews as do http://cvtech.com.au/ Isel are the cheapest ballscrews I could find in Australia.
Cheers
Splint
Hi,
I am converting a HM-30 (RF-30 Clone) to cnc, the stock screws have too much backlash and I am looking to go to ball screws, can anyone recommend a supplier in Australia or am I better off to order from the US?
I need to ask a few questions so a company that does CNC would be a great help.
thanks
Lee McLaren
Tasmania, Australia
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Applied Automation and Engineering handle Isel rolled ballscrews as do http://cvtech.com.au/ Isel are the cheapest ballscrews I could find in Australia.
Cheers
Splint
Thanks Splint
Applied Automation and Engineering has the 25mm version so off to do some measuring..
regards
Lee McLaren
Universal bearings at Wetherill Park (Sydney) I've fornd has well priced bearings and ball screws http://www.universalbearings.com.au/ Neil Tibbles is a good, helpful contact
Glenn
www.metalbashatorium.com
In Jus Voco Spurius
http://www.metalbashatorium.com
I got 16mmx5mm pitch ballscrews for my project from www.appliedauto.com.au in Melbourne. Cheapest I was able to find - equivalent THK was 3-4 times the price.
What sort of money Gimbal
Iv'e been looking at HomeshopCNC prices which seem real good till you change
the dollars and add freight
Greolt
2 x 460mm travel $155 odd eachOriginally Posted by Greolt
1 x 360mm travel $148 odd each
ballnuts $115 each
This included machining to ISEL catalog standard.
Figure $270 per axis
This was June 2005 so YMMV - at the time this was well worthwhile to me as second hand ebay 20mmx5mm pitch screws were worth about this when freight was included.
Hi Guys,
I would recommend contacting Action Bearings.
(http://www.actionbearings.com.au/)
A mate of mine just converted his mill to rolled ball screws with 2 nuts on each axis and I'm positive that the total cost was below $500.
This was for 3 pieces of thread and 6 ball nuts.
It was the Kensington branch that was contacted and the sales rep was Brett.
If you purchase from them maybe you could mention that Jayson from Horsham recommended them.
I don't get anything out of this however I have pestered them quite a bit and they haven’t got any of my money... yet. A few purchasers might make up for it a bit.
I will definitely be purchasing from here once my finances allow.
Regards,
Jayson
(Horsham, Victoria)
I would be interested in following your progress with this project as I am interested in converting my HM-35 to CNC. Will you be makng this a project on the web pages here?Originally Posted by lmclaren
Guy's
I can back splint up on his recommendation for the ISEL gear from Applied Auto, I use the 16mm screws all the time and you can adjust the backlash right out of the nuts with their neat little side clamp system
"A Helicopter Hovers Above The Ground, Kind Of Like A Brick Doesn't"
Greetings From Down Under
Dave Drain
Akela Australia Pty. Ltd.
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)
I've been doing some hunting around too, funnily enough I got quoted $200/metre for the screws from an aussie supplier, but "280" for the nut. He couldn't have meant $2.80 lol, that surprises me.
Wow, how the time does fly.....10+ years and you still get a reply......I wonder if the Chinese were selling back in 2006.
BTW....any cheap rolled ballscrew can be made good if you run 2 ball nuts on them.....this is not to be confused with a double ball nut.
Ian.
I'd be interested also, but as with all my Linear bearings OS seems the only way to go, maybe BST Motion on Aliexpress or even a used one from the states or elsewhere. might be worth the gamble.
wouldn't 2 nuts provide some error averaging along the screws axis? especially if they had some preload....
Hi.........first you have to understand what a double ball nut is.......it's two nuts screwed together with a spacer between them .......the amount of "screwing together" you have against the spacer determines the amount of preload you want to offset heavy loading.
A single nut can be preloaded by having oversize balls that force them into tight contact with the screw, but eventually the balls wear and or the screw too and so you have backlash in some parts of the screw mainly the centre where you do most of your work.
If you have two single ball nuts placed flange to flange and a resilient spacer between them you can have a backlash free screw all along the screw even if it's a cheap rolled screw that has seen better days......the resilient spacer allows you to have a tight backlash free nut for the worn sections and the unworn sections too without binding.
Reballing a worn nut for a worn screw with bigger balls will only make it over-tight on the unworn sections at the ends where you don't use it much.
Ian.