Drag chain and switch type.

[Ollie78]

Hi everyone.

I have just finally got my machine cutting.

Though it is working very nicely, I feel that i will need to add some drag chains to the gantry (Y in my case) and Z axis. I have been looking at some on ebay and am not sure which to get (some look a bit crap).
At this point I don`t want to re-wire everything so need to be able to open the chain and slide in the wires and coolant tubes. The Z axis has quite a lot of wiring and tubes so it needs to be quite fat as well.
Currently I have controlled the wires with a length of bungee from the ceiling and some zippy ties.

Just wondering if there is a go-to brand or type for these chains, or any other recommendations or experience with them ?

Similar question with the switches really.
When i bought the machine it had one switch on the Z and one on the Y axis, oddly these were wired into one port on the BOB along with the E stop switch. I have removed the switches from the BOB for now and just left the E stop functioning.

I plan to use a spare breakout board and wire 5 limit switches to it then into the UC300 eth. So one each end of the X and Y and one at the top of the Z. Then set up homing on the same switches.

The old Switches are roller lever micro switches. However i went on RS components to look for `limit switches` and found an enormous range of types and prices. Any recommendations?
I am cutting wood mostly so no coolant splashing about but obviously dust.


Thanks

Ollie