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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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#1
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A lamp blew and then...
Just as an update I've made up the dimmer. Used a Knightsbridge polished
chrome 2 gang plate from TLC. Which I've used before to make 'specials' like say for AV. I think the last one I used was chrome on brass. So not that difficult to drill/work. This one - not in the usual Knightsbridge cardboard box seems to be polished stainless steel. Looks just fine, but a nightmare to drill. Blunted a couple of new 2mm HSS drills while attempting the first pilot hole. Eventually used a tungsten one. And broke it on the forth. Enlarged it 0.5mm at a time - it did get easier with the larger sizes. -- *Re-elect nobody Dave Plowman London SW To e-mail, change noise into sound. |
#2
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A lamp blew and then...
On Wed, 24 Feb 2021 11:37:22 +0000, Dave Plowman (News) wrote:
Just as an update I've made up the dimmer. Used a Knightsbridge polished chrome 2 gang plate from TLC. Which I've used before to make 'specials' like say for AV. I think the last one I used was chrome on brass. So not that difficult to drill/work. This one - not in the usual Knightsbridge cardboard box seems to be polished stainless steel. Looks just fine, but a nightmare to drill. Blunted a couple of new 2mm HSS drills while attempting the first pilot hole. Eventually used a tungsten one. And broke it on the forth. Enlarged it 0.5mm at a time - it did get easier with the larger sizes. I bought a baby bench grinder to sharpen drills. |
#3
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A lamp blew and then...
On 24/02/2021 12:20, jon wrote:
On Wed, 24 Feb 2021 11:37:22 +0000, Dave Plowman (News) wrote: Just as an update I've made up the dimmer. Used a Knightsbridge polished chrome 2 gang plate from TLC. Which I've used before to make 'specials' like say for AV. I think the last one I used was chrome on brass. So not that difficult to drill/work. This one - not in the usual Knightsbridge cardboard box seems to be polished stainless steel. Looks just fine, but a nightmare to drill. Blunted a couple of new 2mm HSS drills while attempting the first pilot hole. Eventually used a tungsten one. And broke it on the forth. Enlarged it 0.5mm at a time - it did get easier with the larger sizes. I bought a baby bench grinder to sharpen drills. with stainless steel, you need to use cobalt drill bits. drill slowly and dont let the drill tip get too hot. (the heat will blunt the drill tip quickly https://www.screwfix.com/p/dewalt-he...-x-133mm/7459v |
#4
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A lamp blew and then...
On Wed, 24 Feb 2021 13:30:06 +0000
S wrote: On 24/02/2021 12:20, jon wrote: On Wed, 24 Feb 2021 11:37:22 +0000, Dave Plowman (News) wrote: Just as an update I've made up the dimmer. Used a Knightsbridge polished chrome 2 gang plate from TLC. Which I've used before to make 'specials' like say for AV. I think the last one I used was chrome on brass. So not that difficult to drill/work. This one - not in the usual Knightsbridge cardboard box seems to be polished stainless steel. Looks just fine, but a nightmare to drill. Blunted a couple of new 2mm HSS drills while attempting the first pilot hole. Eventually used a tungsten one. And broke it on the forth. Enlarged it 0.5mm at a time - it did get easier with the larger sizes. I bought a baby bench grinder to sharpen drills. with stainless steel, you need to use cobalt drill bits. drill slowly and dont let the drill tip get too hot. (the heat will blunt the drill tip quickly https://www.screwfix.com/p/dewalt-he...-x-133mm/7459v My Dad was a light engineer. He kept a small bottle cap on his bench with some wadding in it that he soaked with oil. Wgile drilling, he would periodically dip the drill tip into the cap to keep his drill bits cool. well cooler. -- Mint 20.04, kernel 5.4.0-42-generic, Cinnamon 4.6.7 running on an AMD Phenom II X4 Black edition processor with 8GB of DRAM. |
#5
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A lamp blew and then...
My Dad was a light engineer. He kept a small bottle cap on his bench with some wadding in it that he soaked with oil. Wgile drilling, he would periodically dip the drill tip into the cap to keep his drill bits cool. well cooler. You need to stop it heating - lubrication and cooling - constant. |
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