Browse Forums Owner Builder Forum Re: Tips for drilling downlight holes 10Feb 20, 2011 10:35 pm Kodiak Data Cabling onFaceBook Consult*, Design and Installation Data, TV, Home Theatre/ AV Cabling, Multi Room Audio, IP CCTV and Door Intercoms Ask for a Quote. *DIY DATA Cabling Is Ilegal Re: Tips for drilling downlight holes 14Feb 27, 2011 8:50 pm Hi, In my opinion, the best way, is to temporarily mark the floor (slab) with a crayon, below where you would like the sparky to run the cables in the ceilig for the downlights, then after its been lined with plasterboard, simply measure from the nearest wall to get your lines straight, no need to get extremely fussy imo, particularly with white downlights in a white ceiling!, best time to drill is before painting, so you can see where the rafters/trusses/ceiling timbers are, give each hole a quick dust off after you've cut the hole so you dont get dust in the paint, (painter should dust off before painting anyway), You can buy a special drill kit from the hardware store with all the common sizes in it, to drill the holes in the plasterboard. under $30 from memory contains about 5 holesaws. cheers woodchip Re: Tips for drilling downlight holes 15Mar 11, 2011 9:08 am Is this dewalt laser plumb bob any good? Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ DW082K Features * Self-Leveling plumb bob is accurate to ± 0,2mm/m * Self-Leveling up to 4° surface angle, finds plumb in seconds - no vials or knobs to adjust * One button operation is fast & easy to use * Focused laser beam keeps dot small even over long distances for improved accuracy & visibility * Cross-hair beam pattern helps user find center of beam * Rubber overmolded housing helps maintain calibration under jobsite conditions * Locating magnets hold Laser Plumb Bob to metal track for easy positioning * Kit box protects unit and helps maintain calibration when stored in gang box Re: Tips for drilling downlight holes 16Mar 11, 2011 9:14 am Woodchip best time to drill is before painting, so you can see where the rafters/trusses/ceiling timbers are Thanks for that woodchip! I hadn't thought of that. The only thing is, we've got ceiling battens throughout. I guess we now only need to worry about where the trusses are (in the opposite direction to ceiling battens). Re: Tips for drilling downlight holes 17Jul 04, 2016 11:49 pm Diggin up an old thread i came across. The best way is to measure them with a tape measure and write down on the house plans. I was a sparky 10 years ago and it perfectly every time. Downlights in a new house is easy. Then ate fit off time simply measure and then punch a guide hole through the plaster. Then to double check before drilling with a hole saw get a coat hanger bent at a 90 degree angle that is the size of the radius plus about 5 or 10 mm. Then put it in the whole and then keep twisting around while moving up and down. If anything is there you'll know it because you'll hit it. It's easy to move them slightly and often there will be no need to even patch the small hole because it is likely you will 0nly need to move it 5 or 10mm at most if you measured it properly at rough in. Mark all downlights and check them first then go around with a hole saw and cut them all out at once. Wiring downlights is as simple as twisting 2 wires together if you are running from an existing light but read up on the correct method for running the wires eg. drilling through joists and bearers and not over the top and make sure you clip them all at regular intervals. I can't remember the reg's anymore but i believe it used to be about 30cm apart max. Any more complex than that and i recommend that you get a licensed electrician. I use Tramex moisture meter and it will tell me instantly if the wall is cement sheet or plaster or masonite but most people dont have the equipment. 5 8181 it depends on the natural ground level, if they excavated their boundary wall needed to be built as a retaining wall. If you filled, which sounds like the case then you… 1 7569 I know foam has been around since the 90's and CSR started manufacturing Hebel in 1989, so it's definitely possible 5 6151 |