Hello,
See attached image.
I have a "small" problem. I usually cut lecablock with a reciprocating saw with a blade for lecablock, but now I have lecablock that are glued to the concrete slab and on top of the leca stands a complete, insulated wall frame. The thing is, along one wall (a number of meters) the lecablock protrudes into the space by about 2 cm. They thus form a ledge that I want to get rid of; I want the lecablock to be flush with the wall that stands on top, just as it does on the other three walls.
I can't cut with the reciprocating saw because it needs "free space on the other side." I've tried a diamond blade on the angle grinder, but it creates a lot of dust, sprays stone pieces everywhere, and it's hard to get a smooth surface. I've searched for stone cutting discs (also discs for other materials) with a recessed center hole, but haven't found any where the disc ends up flush with the upper wall. The nut and axle always stick out a bit, about 0.5 cm or more, because the center holes are never deep enough (so I don't get why there are recessed center holes when they don't offer much benefit). I've looked at several cutting machines in different price ranges, all seem to have the same "problem" as my Bosch blue.
Does anyone have an idea of how to cut the lecablock along the wall's length? Is there possibly a good machine, which I might have missed, that can do the job and that you can perhaps rent at Cramo or similar?
Thanks in advance!
See attached image.
I have a "small" problem. I usually cut lecablock with a reciprocating saw with a blade for lecablock, but now I have lecablock that are glued to the concrete slab and on top of the leca stands a complete, insulated wall frame. The thing is, along one wall (a number of meters) the lecablock protrudes into the space by about 2 cm. They thus form a ledge that I want to get rid of; I want the lecablock to be flush with the wall that stands on top, just as it does on the other three walls.
I can't cut with the reciprocating saw because it needs "free space on the other side." I've tried a diamond blade on the angle grinder, but it creates a lot of dust, sprays stone pieces everywhere, and it's hard to get a smooth surface. I've searched for stone cutting discs (also discs for other materials) with a recessed center hole, but haven't found any where the disc ends up flush with the upper wall. The nut and axle always stick out a bit, about 0.5 cm or more, because the center holes are never deep enough (so I don't get why there are recessed center holes when they don't offer much benefit). I've looked at several cutting machines in different price ranges, all seem to have the same "problem" as my Bosch blue.
Does anyone have an idea of how to cut the lecablock along the wall's length? Is there possibly a good machine, which I might have missed, that can do the job and that you can perhaps rent at Cramo or similar?
Thanks in advance!
A multi-tool with a round cutting disc would have worked. It would have taken some time, and it could easily become uneven. It might have been possible to sacrifice a cheap handsaw as well. I've successfully cut leca with a Biltema handsaw. It also takes some time, but it's probably easier to get an even cut.
Sometimes you end up scratching your head longer than it would take to do it by hand. Hand saw so you can skip the gym membership. Wide chisel for tiles for the rotary hammer. Good old-fashioned chisel with an appropriate hammer.
It somewhat depends on the finished surface you want, but it probably ends with a need to sand and polish afterward.
Since it's always fun to consider new tool purchases, a slot cutter that runs perpendicular, set to the depth you want to remove, might work, and then after making several slots, you can break what's left with a chisel. Naturally, some manual work will be needed in corners, etc.
It somewhat depends on the finished surface you want, but it probably ends with a need to sand and polish afterward.
Since it's always fun to consider new tool purchases, a slot cutter that runs perpendicular, set to the depth you want to remove, might work, and then after making several slots, you can break what's left with a chisel. Naturally, some manual work will be needed in corners, etc.
A "alligator saw" might work? https://www.bygghemma.se/reportage-och-guider/saga-lecablock-verktyg/
I think so, but I don't know, you might as well upload a pictureK Kane said:
Otherwise, you can do as myrstack wrote. You already had an angle grinder. You can cut horizontal cuts into the wall and then chisel it down...
… and it wasn't you who wrote in the first place, I see now, sorry1977bjorn said:
I think so, but I don't know, maybe you should post a picture
Otherwise, you could do as myrstack wrote. You already had an angle grinder. You can saw horizontal cuts into the wall and then chisel it down…
Thanks for your responses.
A handsaw doesn't work, there's a concrete slab on the other side, so to speak.
An alligator saw probably won't work either for the same reason as the handsaw.
A chainsaw with a rotating blade would be perfect, but I can't reach with one.
I want to avoid all manual work considering I want the surface smooth (like a lecablock) and that it is eight meters I have to cut.
Any more suggestions, anyone? Thanks
A handsaw doesn't work, there's a concrete slab on the other side, so to speak.
An alligator saw probably won't work either for the same reason as the handsaw.
A chainsaw with a rotating blade would be perfect, but I can't reach with one.
I want to avoid all manual work considering I want the surface smooth (like a lecablock) and that it is eight meters I have to cut.
Any more suggestions, anyone? Thanks
Not a completely bad idea, if there is no other way out, I will definitely consider your suggestion even if it might mean a bit of extra work.pjgb said:
This one then?
you can't see very well, but it seems to be recessed anyway...
https://sandbergsjarn.se/produkter/...r-stone-kapskiva-forsankt-125x2223x25mm-sten/
you can't see very well, but it seems to be recessed anyway...
https://sandbergsjarn.se/produkter/...r-stone-kapskiva-forsankt-125x2223x25mm-sten/
I've tried it. Unfortunately, not recessed enough.
yes, it's really about building the wall "right", it feels like just a layer of nail battens is missing to make it work.
As an alternative to redoing it, why not just put tiles on this surface as it is? I think it would turn out pretty okay.
There are angle grinders designed for difficult spaces, which with a blade for leca could essentially allow you to cut along the wall. An inspiration from Metabo below.
And really to mention it, but absolutely not recommend it, there are extreme variants of pneumatic angle grinders with a long shaft where you can of course attach a diamond blade, but the risk of ending up in the following thread might be significant on https://www.byggahus.se/forum/threads/posta-skador-olyckstillbud-med-maskiner-och-verktyg.82640/
And really to mention it, but absolutely not recommend it, there are extreme variants of pneumatic angle grinders with a long shaft where you can of course attach a diamond blade, but the risk of ending up in the following thread might be significant on https://www.byggahus.se/forum/threads/posta-skador-olyckstillbud-med-maskiner-och-verktyg.82640/