Re: Linear slide with DIY rail

Hi Mark,

Thanks for your inputs. Yeah linear slide shouldn't be too expensive
because people can think of many solutions and make them by
themselves. Box section beam is a good idea, but if we use it we
will have make blocks ourselves too.

Regards,

Horace.

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Mark Vaughan" <mark@...>
wrote:

>
> Some big machines don't need high accuracy.
>
> We make some machines where a mm error wouldn't bother us. We use

50mm thick

> wall steel box section, mount it on a frame with bolts welded on

the corners

> so it can be shimmed, BUT it is mounted with its cross section at

45 degrees

> to the frame bed. We then use 90 degree V rollers on our gantry,

which is

> 20mm thick about 20cm square with four V rollers. It is very cheap

and works

> very well, the rollers do need to grip tight so there are some

losses due to

> drag. If there is an error out of true we just adjust the bolts

and shims.

> The main frame is bolted to the building on installation to get

the rest of

> it's rigidity.
>
>
>
> May not be suitable for you but worth a thought
>
>
>
> Regs Mark
>
>
>
> _____
>
> From: CAD_CAM_EDM_DRO@yahoogroups.com
> [mailto:CAD_CAM_EDM_DRO@yahoogroups.com] On Behalf Of Horace,

T.L.Ho

> Sent: 03 December 2006 12:57
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Subject: [CAD_CAM_EDM_DRO] Linear slide with DIY rail
>
>
>
> Hi all,
>
> I found it hard to buy (second hand) linear slide with enough rail
> length sutitable for our project. My idea is to keep the blocks

and

> machine my own rail. Has anybody done this before ? Any inputs

will be

> thanked.
>
> Regards,
>
> Horace.
>
>
>
>
>
> [Non-text portions of this message have been removed]
>