Reply With QuoteNo, you will not do your circular saw any favours.
No quick way unless you order your pieces laser cut, other than that your angle grinder or a jigsaw although the jigsaw is not very neat
Master
Hoping someone might be able to save me doing it the hard(est) way.
I only have basic tools and need to cut some sheet (approx 4mm thick mild steel)
I was going to use my angle grinder with a cutting disc(s) but as I need to make a few cuts I was wondering if the local hardware stores might have a cutting blade to suit my circular saw (Figure larger blade should get a few extra cuts done and may run straighter)
Any other suggestions or tips? (Building a trailer, frame done now just to cut sheet, instal, prime, paing, lights, etc etc..... Hmmm why didn't I just buy one!)
ChatterBox
No, you will not do your circular saw any favours.
No quick way unless you order your pieces laser cut, other than that your angle grinder or a jigsaw although the jigsaw is not very neat
RichardK
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Fossicker
4mm is thick sheet steel for a trailer bit of weight there ?.
just use two G clamps and a piece of timber as a guide nice and easy wright blade in the jig saw will do it just take it easy
Master
Thanks for that, will stick with the angle grinder then!
Unfortunately $$$ are tight (as usual) and I managed to pick up some steel from hardware store at what I thought was a good price ($55 per sheet 180cm X 120cm).
I would have liked a little thinner to try and keep the weight down a bit but hey!
Yes you can run a metal cut off blade in a circular saw. Have done so with a makita. Just do not push it. make sure the blade fts the drive correctly, and the blade is the correct speed rating.
so you dont put side load on the blade, clamp a guide on to run against and set the depth as deep as possible so you are cutting as close to the center of the blade as possible.
Just take it easy as you go,
I usually use worn down wheels off a cut off saw.
Wear PPE and keep all other persons completely away from the area. Cutoff wheels if and when they do shatter can be lethal.
AS usual do not do any cutting around flamable combustable or explosive materials or painted surfaces, if you value the paint work.
PS one last instruction, hold the saw firmly in both hands at all times until it completely stops before removong from a cut. It is no longer like a saw in wood!
Last edited by Roverray; 29th September 2007 at 10:03 PM.
Master
Sorry Sadben, you must have posted while I was typing. I like the idea of timber guide and jigsaw for ease..... not very good with the grinder!
Weight is going to be BAD but I kinda need it going so...
Pic of frame below)
LordRover
Subscriberi use my jigsaw with piece of wood guide for wood/steel and alloy (with the apropriate blade) and makes a good straight cut. Your trailer frame is very similar to the 1 i am rebuilding now, what size is it ?Originally Posted by cookiesa
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Wizard
go to your hardware store and get some 1mm thick (thin) cutting discs. IMHO these are the quickest way to cut steel accurately.
you can also use your circular saw, but as stated above, there is more setting up to do with jigs and tressels etc. A grinder you mark it, and cut it, simple as that. Also if you do go for the circular saw, make sure that the discs are the right fit on your saw, an are rated at the right rpm.
Andy
ChatterBox
4mmis it going to be mine proof...
The bit o wood and G clamps can work with an angle grinder as well
RoverLord
as dirtydawg says it can be done with the grinder, set up the wood as per if you weere going to do it with a normal circ saw but you will need to do a simple mod on the grinder... and that is..
rotate the safety shield or adjust the angle at wich you hold it.
make sure your piece of wood is tall enough that both sides of the safety shield on the grinder touch the wood and your set, If your really really pedantic you can also chamfer the edge of the wood so that holding the grinder canted over will put the chamfer on the edge in preperation for welding.
Dont goto bunnings to get your cutting discs (you can but they usually only have 1mm discs which work great anyway) if you get them from a specialist metal fabricators you should be able to get a .5mm disc that will go through that plate like a hot knife on butter. Just dont side load them at all, they tend to fracture.
Make sure you do a couple of trial cuts to make sure you get it all set up right and your comfortable doing it.
Dave
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