- Thread starter dazza
- Start date
dazza
Member
- Messages
- 2,203
- Location
- Barcelona
I have a light sensor which should switch the pump on when i start welding (auto setting) or i switch to permanently on. I may link it to the pedal switch. I was going to get another arduino and try and make my tig pedal wireless but will leave that for another time.Looking good
Do you have the pump coming on with the torch or is it just via a switch on the cooler?
Hood
I am obsessed.
- Messages
- 17,308
- Location
- Carnoustie, Scotland
I was considering fitting a socket on the back of the Parweld similar to the female sockets you get in a computer power supply for the mains input. I was then going to have the cooler powered from it so that when I switched the welder on the cooler came on. So not auto with torch but at least I couldn't forget to switch the cooler on. Only problem with doing that is the warranty would likely be voided 
dazza
Member
- Messages
- 2,203
- Location
- Barcelona
I was considering fitting a socket on the back of the Parweld similar to the female sockets you get in a computer power supply for the mains input. I was then going to have the cooler powered from it so that when I switched the welder on the cooler came on. So not auto with torch but at least I couldn't forget to switch the cooler on. Only problem with doing that is the warranty would likely be voided
You could easily tap into the pedal/switch like others have done so if the cooler is not on the switch signal will not get passed on to the welder.
dazza
Member
- Messages
- 2,203
- Location
- Barcelona
I think it would others are using a flow switch connected to the switch.
dazza
Member
- Messages
- 2,203
- Location
- Barcelona
dazza
Member
- Messages
- 2,203
- Location
- Barcelona
Would i be better off getting 1/4bsp and using reducers 1/4 bsp to 1/8 npt?
Hood
I am obsessed.
- Messages
- 17,308
- Location
- Carnoustie, Scotland
What I would do is get a lump of Delrin/Acetal and a couple of cheap taps one NPT one BSP and make my own.
Having said that even just getting a BSP tap and forcing the NPT fitting in should be fine as the Delrin would stretch a wee bit.
Having said that even just getting a BSP tap and forcing the NPT fitting in should be fine as the Delrin would stretch a wee bit.
dazza
Member
- Messages
- 2,203
- Location
- Barcelona
Sorry for the rubbish video i've had enough for one evening. Been distracted today by the boxford in the for sale section rang around for a few pallet quotes.
I now have a flowmeter and pressure sensor no idea how accurate the pressure sensor is. Sitting at about 54psi. Flow varies between 1.9LPM and 2.1LPM. In 30 seconds i got exactly one litre out thats the jug shot at the end. Before that was my auto cutoff at 57psi
.
I now have a flowmeter and pressure sensor no idea how accurate the pressure sensor is. Sitting at about 54psi. Flow varies between 1.9LPM and 2.1LPM. In 30 seconds i got exactly one litre out thats the jug shot at the end. Before that was my auto cutoff at 57psi
.
dazza
Member
- Messages
- 2,203
- Location
- Barcelona
Don't really want to buy a mechanical gauge, but don't to damage the torch either, Don't know how much more i can back it off. @Richard. any thoughts on this?Looks like the flow sensor is correct then
Pressure gauge would seem to be reading low if it is a similar setup to mine as at 50/55PSI (mechanical gauge needs damped) I get 1.2l/min
Hood
I am obsessed.
- Messages
- 17,308
- Location
- Carnoustie, Scotland
Maybe you have bigger bore pipes on the torch than mine or maybe there is less restriction in the torch head, certainly seems to be almost double the flow for the same pressure.
Read articles that say 0.9L/min is the optimum, others seem to converge on 1.2L/min, Parweld never got back to me (second email they have ignored ) so not sure what they would have said.
Read articles that say 0.9L/min is the optimum, others seem to converge on 1.2L/min, Parweld never got back to me (second email they have ignored
) so not sure what they would have said. 