Greetings from Nottinghamshire

**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.

**mattnedgus** · 30-06-2016

Originally Posted by Clive S

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.

I was happy dealing with Chai but it's always nice to see what others have to offer (and I wasn't sure if Chai was still going) - did I have one of the links right for BST?

**Clive S** · 30-06-2016

Originally Posted by mattnedgus

I was happy dealing with Chai but it's always nice to see what others have to offer (and I wasn't sure if Chai was still going) - did I have one of the links right for BST?

Yes the link is http://www.aliexpress.com/store/314742 he has a gmail account on there and Fred always answer his emails I would contact him via email for a quote.

I believe Chai is still in business.

**mattnedgus** · 01-07-2016

Originally Posted by Clive S

Yes the link is http://www.aliexpress.com/store/314742 he has a gmail account on there and Fred always answer his emails I would contact him via email for a quote.

I believe Chai is still in business.

Cheers Clive, much appreciated! I received an email back from Chai regarding bellows (they don't do) so he's still on the go which is good to know!