Greetings from Nottinghamshire

**Stressedwoodman** · 07-06-2016

Got a response back from cnc4you, they are an equilivant rail. The million dollar question is are they going to be as good as hiwin ones? Experience anyone?

**Clive S** · 07-06-2016

Originally Posted by Stressedwoodman

Got a response back from cnc4you, they are an equilivant rail. The million dollar question is are they going to be as good as hiwin ones? Experience anyone?

I think they will be more than good enough for a hobby build I would doubt that you could tell the difference.

**JAZZCNC** · 07-06-2016

Originally Posted by Stressedwoodman

Got a response back from cnc4you, they are an equilivant rail. The million dollar question is are they going to be as good as hiwin ones? Experience anyone?

Have you tried Fred at BST because I doubt you'll buy them cheaper in UK or even get close on price and they are genuine Hi-win.

**Stressedwoodman** · 13-06-2016

Got a quote back from Fred. I have also got a quote from "transmission CNC" for the same which significantly less - anyone used them, seem to be a medium preload fit which I am not sure if that's an issue or not.

**mekanik** · 13-06-2016

Hi
Could you post a link for transmission CNC
I have been looking for Hiwin rails and do not find Fred to be the cheapest supplier. are the rails from transmission CNC etched Hiwin.
Mike

**Stressedwoodman** · 13-06-2016

Here is the link
http://www.aliexpress.com/item/HIWIN...999.263.UMYDXN

**Stressedwoodman** · 15-06-2016

No one got an opinion whether medium preload is too much or not for a medium sized CNC router.? I am finding difficult to predict what sort or resistance this would be from the data sheets. I don't want to end up needing bigger motors just to move things.

**Lee Roberts** · 16-06-2016

Originally Posted by Stressedwoodman

No one got an opinion whether medium preload is too much or not for a medium sized CNC router.? I am finding difficult to predict what sort or resistance this would be from the data sheets. I don't want to end up needing bigger motors just to move things.

Medium preload should be fine...

Higher stiffness at the expense of life span and force required...negligible for home build :).

Stiffness values http://www.automation4less.com/pdfs/hiwinaglg.pdf

.Me

**mattnedgus** · 29-06-2016

Originally Posted by JAZZCNC

Have you tried Fred at BST because I doubt you'll buy them cheaper in UK or even get close on price and they are genuine Hi-win.

I saw BST mentioned somewhere in a post earlier too, while browsing for Bellows and Wipers (neither of which I installed when I finished the machine!) - is it BST Automation on Aliexpress you refer to? I think a couple of years ago I read Chai from Linear Motion Bearings was good so I sourced from him. Where do people tend to source these days (I might need another ballscrew if I can't get the wooddust out of this one!) and what's the quality like?

EDIT: Oh or these? BST Linear

**Clive S** · 29-06-2016

Originally Posted by mattnedgus

I saw BST mentioned somewhere in a post earlier too, while browsing for Bellows and Wipers (neither of which I installed when I finished the machine!) - is it BST Automation on Aliexpress you refer to? I think a couple of years ago I read Chai from Linear Motion Bearings was good so I sourced from him. Where do people tend to source these days (I might need another ballscrew if I can't get the wooddust out of this one!) and what's the quality like?

EDIT: Oh or these? BST Linear

Chai is a good guy but BST seems to be the place to go to now. I have purchased from both and been happy though.