CAFE CREME - BOARD.....TRACKER

beachcomber

TJ - Beachcomber
DTT SUPPORTER
Mocked up the intake today with the new manifold. There's enough of an area to clamp the copper elbow securely into the rubber intake. And then the SU float is at the perfect angle and the carb body clears the head.

That just means the copper elbow has to be soldered to the alloy SU flange.

Due to the weight of the SU I'll make up a decent support from the head. Fortunately there's a couple odd OEM brackets I can use - now redundant.
 

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beachcomber

TJ - Beachcomber
DTT SUPPORTER
Just to give me a bit of encouragement !! I should have the frame jig [very basic ] next week so I can start positioning the various lumps to check packaging.

At the moment the plan in my head should work out !!!
 

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beachcomber

TJ - Beachcomber
DTT SUPPORTER
We finalised the crude frame jig yesterday. crude but I think effective.

As the top box tube frame section will no longer double up for fuel, I've ordered the much lighter gauge 2" x 2" x 16swg. Hopefully collecting that today.

Once the jig is firmly attached to my bench, I can start the P.O.C. mock up of the main assemblies.
 

beachcomber

TJ - Beachcomber
DTT SUPPORTER
Much better, we'll have the 2" x 2" cut and fettled so that the Bantam headstock sits in the box half way so we can get a neat finish. The box will be fettled at the correct angle to self jig the headstock angle [ 64 degrees ].
 

beachcomber

TJ - Beachcomber
DTT SUPPORTER
The crude [ very ] frame jig mounted and 100% level. Crude but effective.

The POC box has been cut and fettled, and when we're happy with all the measurements and angles, we'll cut the finished 2" x 2" top tube.
The headstock just nestles in nicely and will make for a smooth welded finish.
 

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beachcomber

TJ - Beachcomber
DTT SUPPORTER
We mocked the front end up today [ forks / wheel ] just to get P.O.C. fit for the headstock / top tube and it all looks good. I've settled on 26 degree headstock angle initially, but that will be double checked when the front is mocked up properly and I can check the trail.

The headstock will now be fettled into the full length 2" x 2" box tube then we can determine how long that needs to be to pick up the rear frame upper tubes.
 

beachcomber

TJ - Beachcomber
DTT SUPPORTER
BTW, the purpose of logging this build [ the frame bit especially ] is NOT to embarrass myself in front of seasoned frame builders, but to show what can be done by those of us with little facilities, skill or equipment.

If you have the vision and will - it will happen.

My first set of Tribsa engine plates were cut using my Nan's front garden gate with the plate wedged in between the gate post and the gate to hold it in place so I could cut the alloy into shape. I didn't have a shed or workshop at the time [ 18 ] and certainly not a vice ! Oh yes, and it rained while I was cutting the last plate !

The final shape was made by using a file with the plates squeezed between my knees to keep them steady - 'ish.
 

beachcomber

TJ - Beachcomber
DTT SUPPORTER
We've got all the various lumps to make up the frame jig and mount the wheels and forks in place - then we can start knitting it all together. The top tube / headstock has been fettled and as soon as we start the mock up, I can determine how long the tube needs to be and get it lopped off.
 

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