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Member postings for Mark Edwards 1

Here is a list of all the postings Mark Edwards 1 has made in our forums. Click on a thread name to jump to the thread.

Thread: Thread sizes on flexispeed meteor lathe
22/08/2019 14:22:10

it is the tiny screws in the gibs that I need to sort out, the threads in the castings are fine but the allen heads are all chewed up, so just need to replace the bolts. I do have thread gauges but are metric as this is all I normally need. Will also investigate UNC as well as Whitworth and see if I can figure it out. thanks Mark

19/08/2019 22:01:25

Thanks, will try and work out the exact sizes. Least I can now start looking through the whitworth specs

19/08/2019 20:06:56

I have obtained a little flexispeed lathe, and want to restore it. Being of a certain age I have only ever used metric fasteners. Obviously this lathe hasn't got metric fasteners. I also have a BA tap and die set and these do not match the smaller threads on this lathe. Any ideas what would have been used on s small British lathe made in the 50's. Whitworth, Inc,unf ? The threads do look quite course based on the diameter of the small bolts.

Thread: Motorcycle wheel spindles
13/01/2011 14:56:51
I have found a supplier of EN16 or EN16T, which should I use, Would I be able to machine the EN16T ? Or if I used EN16 would it have to have some additional heat treatment afterwards ?
13/01/2011 14:34:21
I am fitting suzuki bandit front end and rear wheel into a race "Classic" YPVS race bike.
The rules don't permit me to change the swinging arm but I am allowed to widen the one I have therefore requiring a wheel spindle approx 15mm longer than the standard one.
 
To answer the above question is no nothing lined up, the brake disc had to be moved 8 mm closed to the centre of the wheel,  talon have supplied a new engine sprocket with 9mm offset moving the chain 9mm outwards, The chain still did not line up so a new sprocket carrier had to be made out of alumimium billet (165mm x 35mm) this moved the sprocket 16mm nearer the centre of the wheel and still used the standard cush drive.
Making the new sprocket carrierr took 12 hours !!! on my chester model B combi machine but it did show just what can be made on basic machinery.
 
We are allowed to run titanium components but not wheels spindles or swing arm pivot bolts and this applies to all race bikes in this country I can only assume it must be on safety grounds. My brother had a set made in titanium and they saved lots of weight but scrutineers started using magnets to check they were steel so that soon put a stop to them.
13/01/2011 09:12:46
I race motorcycles and I am upgrading to wider wheels, this requires a new wheel a spindle to be made, nominal diameter 17mm x 240mm long threaded at on end.
What steel should I use ? I model engineering equipment not industrial so I need to be able to machine this at home but it has to be strong enough to do the job
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