cutting steel - accuracy

[cirrusjock]

Hi

Another stupid question, I am cutting my steel using an angle grinder and cutting disk. Some of the angles have come out slightly uneven. This means when you put it against the next section there are small gaps. Particularly the 74 degree engine supports. I know these will be filled in when it is welded but will this be ok or should I redo it.

I am teaching myself to weld and getting there but am worried about the strength of the finished chassis. I have visions of it coming apart on the road

[MarkB]

If you are not sure then buy a ready made chassis, providing you don't modify that chassis you will be covered by their liability insurance should it fail.

[cirrusjock]

I was going to do that but I really do want to do everything myself. I would like to be able to look at the finished car and think, I built that.

I don't want to look at a load of metal scattered over the road though and think ' I built that'

[flyerncle]

Mark the angles on the steel with a scriber and cut with a hacksaw,long winded but easier to file up,practise welding before you start the chassis for real.

[ayjay]

I used a 9" grinder to cut my steel at first but then found it better with a 4" using the thin slitting discs-a lot better control of the cut

[will_08]

If u really want to do it all then go for it, but as previously said dont practice welding on a chassis

I couldnt weld have taught myself after my freind set my welder up, can lay some nice welds. but i plan to finish tacking it (hopefully soon ) myself then let him fully weld it up.

I started exactly like you but logisticly its going to take me forever to fabricate everything from scratch and i dont think id want to take a chance on the suspension components when im not that confident.

As for the accuracy of cuts i got a Handy Andy flat pack so i cant comment on that.

Best of luck with your build mate

Will

[tkpm]

I used a Evolution Rage 3 from Screwfix,

http://www.screwfix.com/p/evolution-...saw-230v/65730

Terry

[vmax1974]

I am using a 4 and half inch grinder with the thin 1mm cutting discs then doing any adjustments with a file find I am getting on ok with this although my grinder is about done in I also bought a trend digital angle rule which I find helps loads

[snapper]

As above....
Cut a little long with the grinder and surface grind or file to fit.

[robo]

If you are having problems with your freehand cutting get one of these gadgets http://www.ebay.co.uk/itm/4-1-2-ANGL...8333%26ps%3D54 The do them for 9" grinders as well. Used with a thin disc it would do all you need. Its not a good idea to gap craft the joints because the weld will pull and cause distortion making it harder to keep everything in check. Practice weld on all the off cuts of material before you start on the chassis, good luck.

Bon