Parallel ports problems

[Cnc many]

Washer pump seems ok with the speed controller, so low flow rate, had it on test for a few hours and no problems. It was still cold, but that was with water, next test is with oil.
Im going to put an intermediate tank with a number of baffles to act as a settlement and swarf trap which then drains into the washer bottle.
time will tell, but it's a cheap option at the moment and I already had all the elements......

thangs guys

[Clive S]

Washer pump seems ok with the speed controller, so low flow rate, had it on test for a few hours and no problems. It was still cold, but that was with water, next test is with oil.
Im going to put an intermediate tank with a number of baffles to act as a settlement and swarf trap which then drains into the washer bottle.
time will tell, but it's a cheap option at the moment and I already had all the elements......

thangs guys

Ah are you talking about the flood cooling or the spindle cooling as I and I think the others were on about the spindle cooling.

[Cnc many]

Tool cooling. I use a straight cutting oil, soluble is poor unless u use it all the time. My new lathe was badly stained after first use when it was looked at the next day.
that was the motivation for straight oil. Fortunatly it was easily removed. The lathe is now 30 years old and is still shiny and looking over most of the machine like new
always applied with a brush or drip feed from a gallon can, but cnc will be working on its own so washer pump will do

Graham

[cropwell]

It makes more sense, now we realise you are talking about tool cooling. I think you will find a windscreen washer pump a problem, as I said swarf will destroy it in seconds. Why not try putting a settlement chamber in front of the pump, with a couple of neodymium magnets in it to pull out fine ferrous particles. You could combine that with a filter, like an airline type filter. The pumps are usually a little neoprene rotor and not really suited to pumping oil, which is generally too viscous anyway.

On my lathe I use a domestic heating pump, which pumps up to a reservoir with a float switch. The soluble oil mix that I use doesn't seem to stain, but the bloody stuff gets sprayed about the workshop. I have to make some acrylic shields which will stop this and also guide the sudsoil back to the swarf tray which drains into the reservoir.

In general, I like the idea of repurposing, especially if you already have the bits or can get them for nowt. I must admit that a number of times my bodging has turned round and bit me.

Cheers,

Rob