Good video, thanks for sharing, Are you using concrete as it looks a bit smooth to be that or are you using mortar or tile glue?? You need to put some sort of release agent on the wood core as it absorbs water from the concrete and expands , either paint it or use normal cooking oil on it and it should stop this from happening and should slide out. better still if you have a 3d printer make the core out of that , it needs to something that does not absorb water. even a cardboard roll will do if you fill it with tissue or paer to keep it ridgid , just pop some tape around the outside of it. the other thing you could have done it put some double sided tape over the entry to the bulb holder then cut away the surplus tape , remove the other side of the DS tape and place the bulb holder directly into the mould with the cable, The DS tape holds it in place, drill a small hole in the wood side and run a piece of plastic pipe into that hole, pass the cable through that, then pop some silicone over where the cable goes into the bulb holder then pour your concrete,. When dry remove the sides and the top and hey presto bulb holder is embedded perfectly into the concrete, this only works with plastic bulb holders, metal ones get attached by the PH in the concrete. I realise that in this case you wanted to see part of the bulb holder.
That's awesome..!!! 😃😃 Thanks for sharing.!!
that plastic paper idea is really good!!
Good video, thanks for sharing, Are you using concrete as it looks a bit smooth to be that or are you using mortar or tile glue??
You need to put some sort of release agent on the wood core as it absorbs water from the concrete and expands , either paint it or use normal cooking oil on it and it should stop this from happening and should slide out. better still if you have a 3d printer make the core out of that , it needs to something that does not absorb water. even a cardboard roll will do if you fill it with tissue or paer to keep it ridgid , just pop some tape around the outside of it.
the other thing you could have done it put some double sided tape over the entry to the bulb holder then cut away the surplus tape , remove the other side of the DS tape and place the bulb holder directly into the mould with the cable, The DS tape holds it in place, drill a small hole in the wood side and run a piece of plastic pipe into that hole, pass the cable through that, then pop some silicone over where the cable goes into the bulb holder then pour your concrete,.
When dry remove the sides and the top and hey presto bulb holder is embedded perfectly into the concrete, this only works with plastic bulb holders, metal ones get attached by the PH in the concrete.
I realise that in this case you wanted to see part of the bulb holder.