Hi,
Just wondering if there's any experience with absolute encoders and
LinuxCNC?
And particularly absolute linear encoders, with or without LinuxCNC.
Thanks,
Andrew
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On Tue, 10 Jul 2012, Andrew wrote:
> Date: Tue, 10 Jul 2012 20:36:43 +0300
> From: Andrew
> Reply-To: "Enhanced Machine Controller (EMC)"
>
> To: "Enhanced Machine Controller (EMC)"
> Subject: [Emc-users] Absolute linear encoders
>
> Hi,
>
2012/7/10 Peter C. Wallace
> On Tue, 10 Jul 2012, Andrew wrote:
> > Hi,
> > Just wondering if there's any experience with absolute encoders and
> > LinuxCNC?
>
>
> The HostMot2 resolver interface is absolute (for one electrical resolver
> turn
> anyway), and its driver code does some things like
On Tue, 10 Jul 2012, Andrew wrote:
> Date: Tue, 10 Jul 2012 23:19:40 +0300
> From: Andrew
> Reply-To: "Enhanced Machine Controller (EMC)"
>
> To: "Enhanced Machine Controller (EMC)"
> Subject: Re: [Emc-users] Absolute linear encoders
>
> 201
On 10 July 2012 21:26, Peter C. Wallace wrote:
> Yes, you might need a hal comp using the raw read/raw write facility
> until SSI is supported by the driver
If there is demand, it is probably not a difficult one to write.
Like a number of other components, the problem is having hardware to
test
On Tue, 10 Jul 2012, andy pugh wrote:
> Date: Tue, 10 Jul 2012 22:37:27 +0100
> From: andy pugh
> Reply-To: "Enhanced Machine Controller (EMC)"
>
> To: "Enhanced Machine Controller (EMC)"
> Subject: Re: [Emc-users] Absolute linear encoders
>
2012/7/11 Peter C. Wallace
> On Tue, 10 Jul 2012, andy pugh wrote:
>
> > Date: Tue, 10 Jul 2012 22:37:27 +0100
> > From: andy pugh
> > Reply-To: "Enhanced Machine Controller (EMC)"
> >
> > To: "Enhanced Machine Controller (EMC)"
On 07/10/2012 05:57 PM, Peter C. Wallace wrote:
If there is demand, it is probably not a difficult one to write.
>Like a number of other components, the problem is having hardware to
>test with, or someone to do the testing vicariously.
Pretty sure the SSI interface works, but the BISS one requi
There are grey scale absolute rotary encoders that are fairly cheap. I
think those would be a better test than linears since you have to handle
the wrap around accumulation. It would be a simple case to use a linear
encoder if the rotary worked.
Stephen
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