Mounting encoder

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Subject Author Date
Mounting encoder Padu 06-19-2006
---> Re: Mounting encoder Wayne C. Gramli...06-19-2006
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Posted by Padu on June 19, 2006, 1:55 pm
Hi folks


This weekend I was trying to mount a USDigital optical encoder (E3 model) to
a S28 magmotor DC motor. As the motor axis sticks out on both sides, I was
trying to mount it to the top of the motor. As expected, there is no
mounting hole on the motor, so before I do something bad to the motor, what
do you think is a good way to mount it?

Should I drill the motor? I don't really know how thick is the metal on the
top of the motor. Or should I glue it? The encoder is made of plastic (black
policarbonate I believe) and the motor is metal (maybe aluminum?), so what
type of glue should I use? It would be nice if I could remove it later on if
I wanted.

Cheers

Padu



Posted by Brendan Gillatt on June 19, 2006, 2:05 pm
Padu wrote:
> Hi folks
>
>
> This weekend I was trying to mount a USDigital optical encoder (E3 model) to
> a S28 magmotor DC motor. As the motor axis sticks out on both sides, I was
> trying to mount it to the top of the motor. As expected, there is no
> mounting hole on the motor, so before I do something bad to the motor, what
> do you think is a good way to mount it?
>
> Should I drill the motor? I don't really know how thick is the metal on the
> top of the motor. Or should I glue it? The encoder is made of plastic (black
> policarbonate I believe) and the motor is metal (maybe aluminum?), so what
> type of glue should I use? It would be nice if I could remove it later on if
> I wanted.
>
> Cheers
>
> Padu
>
>

I would use Epoxy Resin. You can get it from most hardware stores. It
bonds just about anything to anything.

Posted by Padu on June 19, 2006, 2:36 pm
"Brendan Gillatt"
> I would use Epoxy Resin. You can get it from most hardware stores. It
> bonds just about anything to anything.

You mean the one that comes in two parts you have to mix? how easy is to
remove it later on if I need? I was going to ask you about thermal
properties, since I suspect the motor will get warm eventually, but now I
remenber that I've used JBWeld on my motorcycle's radiator, I think it's
kind of the same right?

Cheers

Padu



Posted by Wayne Lundberg on June 19, 2006, 3:20 pm

> "Brendan Gillatt"
> > I would use Epoxy Resin. You can get it from most hardware stores. It
> > bonds just about anything to anything.
> You mean the one that comes in two parts you have to mix? how easy is to
> remove it later on if I need? I was going to ask you about thermal
> properties, since I suspect the motor will get warm eventually, but now I
> remenber that I've used JBWeld on my motorcycle's radiator, I think it's
> kind of the same right?
> Cheers
> Padu

Use a collar around the motor which can be taken off, moved, adjusted, is
cheap, is light, will do the job. Come on down to my shop and we'll make one
for you.

Wayne



Posted by Brendan Gillatt on June 20, 2006, 12:21 pm
Padu wrote:

> You mean the one that comes in two parts you have to mix?

Yeah - one part's the glue, the other the fixer. This allows you to glue
things without any air present making even thick layers of glue very hard.

> how easy is to
> remove it later on if I need?

You'll probably never separate the two but as Wayne mentioned a
removable motor mount would probably be very handy.

> I was going to ask you about thermal
> properties, since I suspect the motor will get warm eventually, but now I
> remenber that I've used JBWeld on my motorcycle's radiator, I think it's
> kind of the same right?

Yeah - by the looks of it it's the same stuff.


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