hi all , could someone please advise me how to easily find the grain direction of aluminium tubing for bending , i am making a bike frame and have to bend some 25mm diameter tubes through 45 degrees but am experiencing cracking before i get to 45 degrees,. it is a 90mm radius bend what sort of...
Hi I am new to the forum , I'm not pretending to be an engineer. I'm an ex mechanic by trade and have an interest in engineering/ fabricating,I'm currently designing and building an adapted electric mountain bike with help from Freind's and brother in welding and machining trades which will be...
