Re: glueing teflon and such

Hi Dave,


In my machine I have used HDPE pads as you are proposing but I am
using .25 to .375 thick material. So glues are not necessary. I have
tapped threads into the plastic and hold the pads in place with brass
machine screws. Ideally using some type of polymer screw would
possibly be a bit better but brass should do as it wont weld itself to
my square bright steel ways (rails) I think if I was using aluminimum
ways the screws would need to be plastic.




Regards


Bob Thomas




--- In CAD_CAM_EDM_DRO@yahoogroups.com, "turbulatordude"
<davemucha@j...> wrote:

> Hi all,


>


> I am looking at a linear slide and want to use some HDPE or Teflon

as

> the bearing surface material.


>


> For this, I was looking at getting some 1/16 sheet and slicing up

the

> sections I need, then using some sort of adhesive, to glue them to


> some aluminum.


>


> Of course the first question is surface prep. if teflon is a non-


> stick, how do you get it to stick ?


>


> There will be very little pressure on this as it is more for


> postioning than pressures involved in cutting.


>


> am thinking about hard anodizing the aluminum before assembly and


> need to find out more about surface conditions. Like, does

anodizing

> raise the surface and make for a rougher surface ?


>


> Any ideas ?


>


> Dave