Any tips on putting heated bed together

I'm moving along on my assembly of my Ormerod 2 printer. My next step is the heated bed assembly and before I start I just wanted to ask if there are any tips or things I should watch out for?

If you have the aluminium heat spreader, spend some time with emery paper removing the high spots and burrs on the faces and edges of the plate.
Also before powering check for shorts between plate and PCB heat bed using a multimeter.

I stupidly didn't spend much cleaning the Aluminium plate and placed 3 holes in the PCB heat bed, which I needed to cover with kapton tape so the heat bed didn't short to the metal plate.

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Supporting 3D Printers with Parts and Build services.
Printer: Ormerod 2 (528.4) Duel extruder set-up with Aluminium X-Rib, RRPro Firmware v1.11-ch (2016-04-08)

Make sure that the connections to the heater PCB are sound. The bed draws a high current, and even a slightly poor contact will cause severe local heating of the connection, which in turn degrades the connection even more.

Dave

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orictosh
If you have the aluminium heat spreader, spend some time with emery paper removing the high spots and burrs on the faces and edges of the plate.
Also before powering check for shorts between plate and PCB heat bed using a multimeter.

I stupidly didn't spend much cleaning the Aluminium plate and placed 3 holes in the PCB heat bed, which I needed to cover with kapton tape so the heat bed didn't short to the metal plate.

So i am not the only one who has done this xD

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Darathy

Quote
orictosh
If you have the aluminium heat spreader, spend some time with emery paper removing the high spots and burrs on the faces and edges of the plate.
Also before powering check for shorts between plate and PCB heat bed using a multimeter.

I stupidly didn't spend much cleaning the Aluminium plate and placed 3 holes in the PCB heat bed, which I needed to cover with kapton tape so the heat bed didn't short to the metal plate.

So i am not the only one who has done this xD

Maybe I was too tired or excited during the build. My only saving grace on this was that it didn't get powered until the multimeter stopped beeping.
It also only showed up as a short when all four nyloc nuts where done up. Ended up thinking they should use wing nuts but nyloc nuts can troublesome but better.
Shorting out the 12v 12A PCB heat bed might have fried the duet board, resulting in a large repair cost and downtime. Always check twice, power once

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Supporting 3D Printers with Parts and Build services.
Printer: Ormerod 2 (528.4) Duel extruder set-up with Aluminium X-Rib, RRPro Firmware v1.11-ch (2016-04-08)

Thanks for all your help. I have it all together and mounted and everything measures out correctly.
Next on to the hotend and extruder.
Any tips on those?