MEW article on coupling a stepper motor to a Vertex Rotary Table

MEW article on coupling a stepper motor to a Vertex Rotary Table

This topic has 8 replies, 5 voices, and was last updated 5 August 2021 at 17:00 by Greensands.

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5 August 2021 at 09:34 #33871
Greensands
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@greensands
Problems in sourcing SPDT Mom (On) OFF (On) Rocker Switches
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5 August 2021 at 09:34 #557100
Greensands
Participant
@greensands
I am currently having problems in sourcing a couple of Mom (On) Off (On) rocker switches required for the Arduino stepper motor project. Only available items appear to be located in the US. Is anyone aware of a possible UK source?
5 August 2021 at 09:41 #557102
Stuart Smith 5
Participant
@stuartsmith5
Are any of these suitable:

**LINK**

from CPC.

Stuart
5 August 2021 at 09:44 #557104
Emgee
Participant
@emgee
Is that the same as SPDT with centre OFF ?

DPDT available on eBay in various forms from several UK sources.

Emgee
5 August 2021 at 09:45 #557105
Greensands
Participant
@greensands
Yes, that looks just the ticket. Many thanks for the link
5 August 2021 at 10:06 #557110
Greensands
Participant
@greensands
Have just checked out CPC for the SPDT switch Type 1818.1302 manufactured by Marquardt but they are only taking back orders. There seems to be a world wide shortage for this and many other items due to Covid issues.
5 August 2021 at 11:57 #557131
Oven Man
Participant
@ovenman
Would something like this be suitable? It's a toggle switch rather than a rocker, probably more robust.

Momentary Toggle Switch

Peter
5 August 2021 at 16:09 #557164
duncan webster 1
Participant
@duncanwebster1
You could always use 2 push buttons instead

If those from Oven Mans link will do I have a couple you're welcome to, but they might be too big
5 August 2021 at 17:00 #557172
Greensands
Participant
@greensands
Oven Man/Duncan – I think the physical size and current handling capacity of the units suggested are a bit OTT for the given application. I checked the Dims and was surprised to see just how big and 'meaty' in both senses they actually are.

In their place I have opted for the miniature version having the same Mom On-Off-On action, smaller current rating and fitting ia 6mm panel hole. Costs in each case are very reasonable.

Many thanks for all the help provided
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