Re: [CAD_CAM_EDM_DRO] Re: re:defiance vmc wasRe: Re: wrong conversion factor ...

Maybe you want to try this (plan ahead first tho'):

Cast up your concrete bed first and install some hold down bolts (like those
used to bolt sill plates to the foundation in a building). Before the
concrete sets fully, place a steel plate loosely on top (don't add the
nuts).

When the concrete is fully set, remove the plate and machine it for
installing the ways and any other items to be bolted on. Put the plate back
on the concrete slab and bolt it down firmly.

Smoke


-----Original Message-----
From: dave engvall <dengvall@...>
To: CAD_CAM_EDM_DRO@egroups.com <CAD_CAM_EDM_DRO@egroups.com>
Date: Friday, December 01, 2000 11:14 AM
Subject: Re: [CAD_CAM_EDM_DRO] Re: re:defiance vmc wasRe: Re: wrong
conversion factor ...

>Smoke wrote:By the way...after looking at that Zanite web site,....they mix

silicon

>
>> dioxide (sounds like sand to me) having a minium size of 1/2 inch

diameter

>> with epoxy for creating their machine components.
>>
>> Smoke
>
>AFIK quartz is simply very pure SiO2. Should not be too hard to find.
>
>Maybe it is possible to combine the best of both worlds....i.e. use

concrete for the bulk of a frame and mount, rather precisely,

>the critical way components with about an inch of filled epoxy around

them. That way you get at least some of the dampening but

>also lower the cost.
>
>Dave
>
>
>Welcome to CAD_CAM_EDM_DRO@...,an unmoderated list for the

discussion of shop built systems, for CAD, CAM, EDM, and DRO.

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