Running repairs to broken wax injector

[Bigwol]

Once all the wiring was complete, the base is bolted back on, and the pneumatic pipes connected.



A couple of turns of PTFE tape seal the threads around the wax injector nozzle and temperature gauge.



First run - up to temperature and holding fine at just below 65 deg C.



And pressure holding at 12.5 PSI, ready for some tests!

[Bigwol]

With the machine up to pressure and temperature, the first wax was injected into a silicone rubber mould.



Looks OK - complete fill with no cold shorts and good definition to wax.



Tested a few more moulds - all filled OK.



System back up and running - The temperature control seems spot on - even better than before, probably due to using the right heating element for 240V rather than the 120V one which I blew up, and using the conductive thermal grease to mount the temperature controller. - Job done!

[WitchfordSilver]

Remember, now that you've redone the wiring your have to find someone call Patrick!

All our equipment has to be "PAT tested" before use

[lorraineflee]

How does patting the equipment prove anything???

Lorraine

[WitchfordSilver]

Pat stands for "Portable Appliance Testing"

Electrical testing of portable equipment will involve the following:

(i) Earth bond continuity tests
(ii) Insulation resistance testing
(iii) Functional checks

But i thing the patting option much more fun.

[Hart-Star]

I thought PAT testing just involved the disconnection of mains leads, waving magic beads over the equipment, sticking an ugly label prominently on it and presenting you with a big bill.

[WitchfordSilver]

it's not the magic beads you get the big bill for! it's knowing just how to wave them. They also have to go on expensive learning processes to get the sticking the label on just right.
lets just hope none make jewellery in their spare time.