Thread: Levelling slabs

There is something called a "Safe-T-Planer" that cuts a 2.75" wide cut.

Dewalt used to make a 106 mm diameter one and I see there are a few on ebay
Vintage Dewalt Radial Saw Rotary Planer 2 Knife Head No 6380 NICE1 | eBay

I recommend making some sort of guard for it.

Cheers bob going to give the dewalt planer a go.

Originally Posted by Atadamcooper

Cheers bob going to give the dewalt planer a go.

No worries, let us know how it goes.

Carbitool makes some planer heads. I use one of the 55mm heads in my router, but they also make a 80mm model which might be worth a look.
The replaceable inserts are great.

CARB-I-TOOL - Router Bit and Accessories Catalogue - January 2012

Originally Posted by BobL

There is something called a "Safe-T-Planer" that cuts a 2.75" wide cut.

Dewalt used to make a 106 mm diameter one and I see there are a few on ebay
Vintage Dewalt Radial Saw Rotary Planer 2 Knife Head No 6380 NICE1 | eBay

I recommend making some sort of guard for it.

Just be very careful with speeds on these, they are not made for router speeds, more fro drill presses and radial arm stuff.

Originally Posted by dai sensei

Just be very careful with speeds on these, they are not made for router speeds, more fro drill presses and radial arm stuff.

Good point.

I did not the following.

I've got a 3hp electric motor I'm going to use, . . ..

I presumed he was going to use the raw speed, ege 1440 or 2880 rpm but if I was doing this I would use a 3 phase motor and put a VFD on it and then you could have variable speed.

Yeah just done some reading on speed control for motors looks like I've got the wrong one (single phase). Might look around for a 3 phase one now, cheers for the replys.

Originally Posted by Atadamcooper

Yeah just done some reading on speed control for motors looks like I've got the wrong one (single phase). Might look around for a 3 phase one now, cheers for the replys.

Bob and Neil have already expressed the concern I immediately had. You need to calculate the peripheral speed as there are huge forces involved as the diameter of you bit increases. What speed is your motor? Probably a four pole (1500 rpm) would be better but everything depends on the size cutter.

Have a look at fly cutters too. I was talking to a friend who has an engineering works about preparing slabs and he immediately said "We'll just make up a fly cutter." This may give you some ideas just from Google Images.

https://www.google.com.au/search?q=F...&bih=653&dpr=1

Regards
Paul

The motor is a 2800 rpm but yeah going to bit of trial and error getting everything right be a few weeks off getting it together as I work away so I'll keep yas all informed on the progress.

SlabMaster Cutter Plate and Tips | YAS Engineering

Any interest?

Wagner Safe T Planer Drill Press Accessory Planer Made IN USA | eBay

Regards
Paul

I cheated, I got sick of trying to come up with ways of doing things that required this and that, We bought a Slabmaster problem solved, don't think we will ever be looking back, this machine can do so many things, much more than just levelling Slabs

We'll I made a bit of a prototype out of 50 shs but wasn't a heavy enough wall thickness so had a little twist in top rail. So built another out of 5mm wall 50mm shs. Very strong now also added some threaded rod to each corner to get everything spot on. Just using my router with 55mm planner bit for now but might have to fab up a motor with similar cutter disc as the slab master soon. But it does the job for now. Added a few pics as we'll, the frame is just sitting on a bench for now but I'll add adjustable legs shortly.

Nice looking job. I'm sure there will be ongoing development. Well done .

Regards
Paul