It is currently 28 Mar 2024, 11:09
Andyp wrote:Being as I managed to wire a relay without too much trouble I thought I might hava a go at making a power take off switch to hang on the side of my numatic.
If I get one of these, or similar if there are cheaper variants, this one is about 26 euro locally.
https://www.kemo-electronic.de/en/Trans ... -V-AC-.php
Put into a box with a couple of sockets, one for the vac, the other the tool, and a lead to the mains it should be a doddle, no?
Any flaws in my plan?
Andyp wrote:I was hoping not to complicate things any further by adding a relay. My guess is that the Kapex saw and the Numatic dust extractor would both pull 10amp each at least so I guess I am stuffed unless I can find a higher rated switch.
the Axminster device seems hellishly expensive.
as is this one
https://www.toolovation.co.uk/product_p/sb24016_eu.htm
RogerS wrote:Which Numatic do you have, Andy ? Twin motors ? if so then you only need one with the Kapex which at 1200w isn't too bad. I'll pop out to the workshop and measure the load of the Kapex.
You could protect you unit by sticking in a fuse in the supply to it although I'm not sure if it would blow fast enough to protect the semiconductors in the gizmo. Bob, any thoughts ?
RogerS wrote:Which Numatic do you have, Andy ? Twin motors ? if so then you only need one with the Kapex which at 1200w isn't too bad. I'll pop out to the workshop and measure the load of the Kapex.
You could protect you unit by sticking in a fuse in the supply to it although I'm not sure if it would blow fast enough to protect the semiconductors in the gizmo. Bob, any thoughts ?
9fingers wrote:Andyp wrote:I was hoping not to complicate things any further by adding a relay. My guess is that the Kapex saw and the Numatic dust extractor would both pull 10amp each at least so I guess I am stuffed unless I can find a higher rated switch.
the Axminster device seems hellishly expensive.
as is this one
https://www.toolovation.co.uk/product_p/sb24016_eu.htm
But the relays is THE way to have a higher rated switch only limited by the contact rating of the relay instead of the sensor device.
Build on what you have learned already in your relay experiences?
Bob
Andyp wrote:9fingers wrote:Andyp wrote:I was hoping not to complicate things any further by adding a relay. My guess is that the Kapex saw and the Numatic dust extractor would both pull 10amp each at least so I guess I am stuffed unless I can find a higher rated switch.
the Axminster device seems hellishly expensive.
as is this one
https://www.toolovation.co.uk/product_p/sb24016_eu.htm
But the relays is THE way to have a higher rated switch only limited by the contact rating of the relay instead of the sensor device.
Build on what you have learned already in your relay experiences?
Bob
That was over a year ago Bob.
Andyp wrote:Were you able to check the festool's load Roger?
Andyp wrote:Not sure want that means in terms of how many amps. All I wanted to do was rig a small double socket box with that master slave switch inside. If I start adding a relay the box is going to get a bit big.
Perhaps this is why the Axi one is so expensive.
At the risk of Bob saying I told you so I could do as you suggest and see what happens. Or rig the saw to the dust extractor and use my remote.
I'll sleep on it.
RogerS wrote:Andyp wrote:Not sure want that means in terms of how many amps. All I wanted to do was rig a small double socket box with that master slave switch inside. If I start adding a relay the box is going to get a bit big.
Perhaps this is why the Axi one is so expensive.
At the risk of Bob saying I told you so I could do as you suggest and see what happens. Or rig the saw to the dust extractor and use my remote.
I'll sleep on it.
Grandma..eggs etc but you do appreciate that you need two separate sockets ?
1200 watts = about 5A
RogerS wrote:
Grandma..eggs etc but you do appreciate that you need two separate sockets ?
1200 watts = about 5A
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