Bargain of a lifetime

Scotia

Full Member
Posts
3,209
Likes
9,635
When you go into the finer finish most are vari speed.
20210822_192827.jpg
20210822_193102.jpg
 

n brown

Full Member
Posts
19,961
Likes
46,559
i have a makita and a bosch 115mm grinders . don't like the shape of the bosch ,not nice to hold . i've had a switch go on a makita before now . have used these skinny discs exclusively since i first saw them ,in Portugal. a year later they brought them out in the UK, i can remember the shops giving away individually wrapped blades as free samples . i also use one of these . the blades seem a bit dear ,but i found a way of extending blade life ,so they're not so bad .https://www.screwfix.com/p/evolution-rage4-1250w-185mm-electric-chop-saw-230v/97351
i have seen 9'' skinny blades and i'll never be brave enough to try one
 

Robmac

Full Member
Posts
28,507
Likes
39,571
i have a makita and a bosch 115mm grinders . don't like the shape of the bosch ,not nice to hold . i've had a switch go on a makita before now . have used these skinny discs exclusively since i first saw them ,in Portugal. a year later they brought them out in the UK, i can remember the shops giving away individually wrapped blades as free samples . i also use one of these . the blades seem a bit dear ,but i found a way of extending blade life ,so they're not so bad .https://www.screwfix.com/p/evolution-rage4-1250w-185mm-electric-chop-saw-230v/97351
i have seen 9'' skinny blades and i'll never be brave enough to try one

Hi Nigel,

If I was to use that chopsaw on powder coated aluminium extrusion, would it be likely to chip the powder coat?
 

trevskoda

Full Member
Posts
27,367
Likes
33,457
Last time i was in a shop which was closing thay had big grinders at £25 petrol h trimmers, strimmers and leaf blowers for same, filled the car i did and then on facebook next day at £50 each. ;)
 

Robmac

Full Member
Posts
28,507
Likes
39,571
The cut edge would be exposed and depending on how the alloy was prepped would have a factor if it chips or not.

Thanks Sam.

The cut edge wouldn't be a problem. At present we cut aluminium with a hacksaw when they have got the measurements slightly wrong, but that is time consuming. We have tried it with an ordinary chopsaw but it's a multi-purpose blade and rips chunks out of it.

I might have to send Nigel a couple of scraps to try a cut or 2 for me! (pretty please Nigel).
 

n brown

Full Member
Posts
19,961
Likes
46,559
Hi Nigel,

If I was to use that chopsaw on powder coated aluminium extrusion, would it be likely to chip the powder coat?
not sure tbh ,but i think if you wrapped it with a couple of layers of masking tape and took it slowish ,it would be ok ,after all the coating is a resin so i imagine it's flexible enough not to shatter .
on the other hand ,an angle grinder might cause burning
 

Robmac

Full Member
Posts
28,507
Likes
39,571
not sure tbh ,but i think if you wrapped it with a couple of layers of masking tape and took it slowish ,it would be ok ,after all the coating is a resin so i imagine it's flexible enough not to shatter .
on the other hand ,an angle grinder might cause burning

Yes we sometimes cut some of the thicker stuff with an angle grinder Nigel. Only problem with that is you have to do it free hand and one little wobble and it's a piece ruined.
 

trevskoda

Full Member
Posts
27,367
Likes
33,457
Yes we sometimes cut some of the thicker stuff with an angle grinder Nigel. Only problem with that is you have to do it free hand and one little wobble and it's a piece ruined.
You can buy a bench tool for angle grinders which looks like a wood saw, just clamp it in and away, as nig says tape the end and keep it cool with water.
 

Robmac

Full Member
Posts
28,507
Likes
39,571
You can buy a bench tool for angle grinders which looks like a wood saw, just clamp it in and away, as nig says tape the end and keep it cool with water.

Thanks Trev might be a cheaper option.

The majority of cuts are on thin aluminium trim either straight cuts or 45 degrees, but they do have to be accurate.
 

trevskoda

Full Member
Posts
27,367
Likes
33,457
Seen one at work once and had to take a second look, just about everything you can think of is out there, the problem is finding it and at a good price.
 

Scotia

Full Member
Posts
3,209
Likes
9,635
Thanks Trev might be a cheaper option.

The majority of cuts are on thin aluminium trim either straight cuts or 45 degrees, but they do have to be accurate.
Don't you have a chop saw for wood? The tungsten tooth blade is good on the alloy a light spray with wd40 or tallow to stop the saw blade clogging up.
 

Scotia

Full Member
Posts
3,209
Likes
9,635
I use a slow cycle MecBrown saw slow speed for mild and stainless steel faster for alloy. I used my Mikita wood saw for alloy extrusion with the tungsten blade for many years before purchasing the MecBrown.
 

n brown

Full Member
Posts
19,961
Likes
46,559
or as Sam said ,a normal chop saw, but i'd buy an aluminium cutting blade ,which has a different rake to the teeth - also good for cutting acrylic sheet
 

Robmac

Full Member
Posts
28,507
Likes
39,571
I already have a larger Evolution saw on a stand which is a great bit of kit for wood or metal. The blade is just a bit too vicious for the ally strips though and tends to bend the points on 45 degree cuts. It also tends to snatch if holding the strip in place by hand while the cut is made. (yeah we're not very H&S conscious and speed is of the essence!) Maybe a different blade would help I suppose.
 

Users who viewed this discussion (Total:0)

Top