So i managed to get a bit more done on the roll cage.
I left it last weekend with the A-pillar supports all tacked up into position, i started to make a roof cross piece for the front.
As the main hoop is quite low i wanted the front windscreen cross piece a bit higher than just straight across so i cut a pre-bent piece in half and used the bent end pieces to give the cross bar a bit extra height.
All tacked up, into position -
Next up i made a roof triangle cross piece to run from the joint of the front windscreen brace to the rear main hoop. I used another bend to create an angle to the piece was level.
Tacked into position -
Once i was happy with the alignment of everything i decided to get the MIG welder out and put some decent tacks on to hold it all together.
As i have built the front section from parts and pre-bent parts i had to plan it so i could get full access to weld right round every joint, obviously i couldn't do a half arsed job of welding or the cage could take my life in a accident instead of saving it.
Plan -
1. Weld the roof section up complete.
2. Weld the front sections up complete.
3. Reassemble and check alignment then weld the roof section to the main hoop.
4. Tilt main hoop forward to access top of roof - main hoop joint.
5. Clean off paint from main hoop fixing points and weld feet up.
6. Install front A-pillar sections and weld to roof section.
7. Weld in Box section front feet anchors to chassis.
8. Finish off Door Bars and weld in.
So next job was to remove the roof section to fully weld it up -
I used my MIG on the pipe end joints on 150 amps with a good wire speed with 0.8mm wire, got very good penetration
I welded up the joints between the pipes with the TIG @ 100 amps with a 2.4mm tungsten, and added plenty of filler rod....again ensuring really good penetration......
Once i had finished that i got the flap wheel disc in the angle grinder and dressed the welds level with the pipe so the joint wasn't visible.
I then decided to reinstall the roof section and check the assembly hadn't pulled when i welded it, it had a smudge but still lined up ok.
I then finalised the position of the front uprights, and again welded them up.
I had only tacked up the mounting points so again busted out the MIG and welded the inside of them. Once finished i welded up all the joints of the front pieces -
Hopefully get the front totally finished tomorrow. then onwards with the door bars.
I'm also going to be putting a cross brace between the rear cage points to mount harnesses off.
I'll update again tomorrow.
So long for now..