Re: [CAD_CAM_EDM_DRO] Positioning

On Mon, 09 Jun 2014 13:48:52 -0400, you wrote:

>On 06/08/2014 03:42 AM, Steve Blackmore steve@...
>[CAD_CAM_EDM_DRO] wrote:
>> The mythical zero-backlash - you mean low backlash?
>>
>> Steve Blackmore
>
>Actually, Steve, zero backlash IS possible, but the caveats which go
>with it are non-trivial. It usually only works over a very limited
>range of loads and zero ERROR is not possible.

Actually - it's not, unless you weld the components together. Some
allowance must be made to allow for thermal expansion, rolling/sliding
clearance and the lube film to prevent said components really welding
themselves together or wearing out very quickly.

It can be made very small, but can never be zero.

Steve Blackmore
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