the holes got drilled in the mounts, even remembered a spot to tie a side stand to





gave them a quick polish while I was at it too, they'll get another going over before welding

the opportunity arose to make a start on the first of the frame side plates , I actually thought I was going to finish one today, but alas .. no



pocket in for adjustable swing arm pivot



fitted spot on



then started machining the back face to suit



it'll end up here, hopefully by next weekend (although i do need to finish the CB)

 

great work yan

 

cheers

 

bit more done to my loominum seahorse today, both sides machined and able to be mocked up in place . photo's are a bit shit, sorry







you can possibly see from here that it wouldn't actually be useable yet ; no way to get the engine bolt either in or out. I'll be cutting scallops out (keeping with the ocean theme) to suit the 14mm socket



i need to measure up for the lower suspension mount



and the mock up with the rough sizes for the top mount is about 10mm too short



the left hand engine mount will need to move a little , with the aid of a spacer , to allow the width of the adjustable shock mount



couple of jobs to do for friends so this can take a back seat for a couple of weeks now

 

Great build ! Really like the engineering so far. The CNC parts are going to make this bike have a cool mechanical look. Can't wait to see more.

 

Looking great as ever. Keep it coming!

Idea for not having the socket gap, how about internal hex wheel nuts? Come in a variety of thread sizes. Could be over complicating but you know me.

Look at this on eBay http://www.ebay.co.uk/itm/130929740068

 

still wouldn't be able to get a stud through 30mm of solid aluminium to reach the engine mount , the scallop for the socket was always in the plan, just going to mark the position once initially assembled to make sure it's in the right place.

 

that is what I am looking for my superbike project. Frame sideplates like MV Agusta. Love how it looks so far.

 

cheers Gripen, your jig is a better set up probably, but i'll be final machining me headstock once its all welded

 

that'll let a socket through to tighten the engine bolt, the remaining aluminium is still thicker than the tube thickness it'll be welded to



a better view of the through hole



while I was at it I profiled the tube location



the top tube will be profiled to suit the rad on the plate , and probably put flats between the two tubes.... I'll work that out soon

pic just a rough visual indication with some offcuts from the arm I made

 

Question about the swingarm mount. Why build it this way? Why not just opening in the plate?

 

the inserts for the swingarm mounts can be removed and replaced raising or lowering the pivot point by 5mm either way, when combined with adjustable top shock mount, the adjustable dogbones and the adjustable offset yokes they will hopefully let me sort any handling issues

that's the plan anyway

 

The notch to get to the engine mount and where the frame tube sits looks a little weak , would it not have been better to make it larger then notch the frame tube slide it over and weld around it , so as the plate sits in the the frame tube? This is not a criticism as there is no way I have the skills you have but just an observation, loving the build and keep the pictures coming.

 

those aren't the actual frame tubes, the frame tubes will be shaped to fit around the top of the side plate, the part of the side plate that has the notch in it is as much a guide for the rails as anything else, it wasn't initially in the design, I'm pretty confident that welding right round the lower tube to the side plate, then right round the top rail to the side plate then joining the 2 rails will be fine.

never fear tho, if I get that far and I'm not confident in it i'll re do it

 

:worshipcf:

 

redrew the mount, reckon it's nearer the mark, once both side plates are on i'll cut a trial template



friend turned a 24mm thread for me letting me start



got the first two flats cut at lunchtime today, then was able to pop it in the spark and cut the internal hex



the disc on the thread will end up as a trick locking nut

 

Looks brilliant!Getting ideas for my mount.

 

Nice work!

How did you cut the internal hex?

I've wanted to do that before, but the machine shop I use doesn't do "broaching".

 

spark erosion , by far the easiest way

 

more pretty things

 

What grade and thickness alloy tube are you using for the frame? I assume the lighter and stronger the better?!
Are you considering the final size of the frame as well ? Flexi pipe looks quite beefy.

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6082 aluminium, 41mm OD, i'd need to check the wall thickness

 

Oh, no shit. I had been assuming you were going to be using 4130 or something, never occurred to me you'd use aluminum. Dunno why

 

big tube ally frame , all polished and shiny , carbon / kevlar bodywork , no paint

 

3/16" wall

 

Using 6060 /T66 alloy tube for my subframe 1" x 3/16"
Only one available to me round here.
Spondon-polished? Or different?

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spondon/martek/GIA ish yeah ......... not saying it'll be as good as any of them. gotta give it a go tho

 

I think it will definetely be up there no doubt, you do stellar work man .

Thinking of laying down the composite bodywork yourself or source pre-made?

I've seen some very nice weaved patterns and colours in carbon-kevlar hybrids, would look insane tailored to the polished aluminium framework.


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