What are you machining?

[E T]

Another bit of LandRover recycled.
Finished the new cross-slide screw today. Cut of the old screw from the cross feed gear. Drilled the end 8mm and used loctite 638 to glue the new screw into place. I thought about cross drilling and pinning it, but I think the loctite 638 will be plenty strong and less work.
Next bit will be milling the two new nuts into the right shape.

 

[Brad93]

I made a start at making a new left hand acme screw for the Southbend cross slide. I had just about enough bearing bronze left to make two new nuts with the 7/6"-10tpi left hand acme tap I bought a couple of years ago.
Then on to the scew. Thanks to the good info from Agroshield in the 'worn nuts' thread. https://www.mig-welding.co.uk/forum/threads/advice-regarding-my-worn-nuts.142278/ I kind of new what to do.
I made two test pieces. The first with the right hand threading tool In its original state and a second with a 5° chamfer milled on the bottom side to get the right helix angle. I don't really know what the angle of the original insert shim is, but it's probably somewhere between 1 and 2 degrees. For a 7/16"-10 LH acme I need about -4° so I went for a 5° chamfer.
According to my calculations the thread depth for a class 2 7/16"-10 acme should be 1.52-1.56mm. With the original tool I had to fed in 1.9mm to get a good fit with the new nuts. With the chamfered tool the infeed was 1.58mm. Close enough me thinks.
The threading went very well. I used straight infeed with the cross slide and full length material to mimic the needed end result and with the travelling steady I had no chatter issues at all.View attachment 495993View attachment 495994View attachment 495995View attachment 495996

Fine work

 

[Maker]

A3 sockets are a nightmare to find and this one wasn't quite long enough, so I chopped it in half and induction brazed an extension in.

 

[Turbo]

A3 sockets are a nightmare to find and this one wasn't quite long enough, so I chopped it in half and induction brazed an extension in.

View attachment 496601View attachment 496602

Whats an a3 socket?

 

[Windy Miller]

Whats an a3 socket?

Exactly what I was wondering!

 

[Maker]

Whats an a3 socket?

The 3mm hex and the grooved shaft is an A3 drive, it fits a pneumatic torque screwdriver. One supplier told me A3 is actually an older standard and a half moon drive is more common now.

 

[Hood]

Machined some bronze, some stainless andsome acetal.

It will go inside some box section but testing here cable tied to the outside.

 

[dobbslc]

A motorised middle finger flipper for the Honda?

 

[oldbikedavey]

Mostly converting Triumph valve spring collars to suit Opel Manta valves and collets.
Using a gunsmiths hand vice to slice a bit off the collet faces to stop them abutting was a nifty sort of a dodge.
Never underestimate the utility of a wet diamond wheel on an RJH Ferret or similar.....

 

[Hood]

A motorised middle finger flipper for the Honda?

It is for Yamaha owners, to mimic a finger in the erse as they can never seem to get things back together to actually get out on the bike

 

[dobbslc]

It is for Yamaha owners, to mimic a finger in the erse as they can never seem to get things back together to actually get out on the bike

Let the midges be feasting on your eyeballs.

 

[Hood]

Let the midges be feasting on your eyeballs.

They don't bother me, same with mosquitos, I must stink too bad.

 

[iNf]

Machined some bronze, some stainless andsome acetal.

Going into the sex toy business?

 

[Hood]

Going into the sex toy business?

Bit slow I would have thought.

 

[RichardM]

Machined some bronze, some stainless andsome acetal.
View attachment 497289View attachment 497290

It will go inside some box section but testing here cable tied to the outside.

I thought it was another side stand modification!

 

[Hood]

I thought it was another side stand modification!

It is, how well it will last I have no idea but we will see.

 

[RichardM]

Tied to a level switch which will automatically adjust to give the correct Honda lean angle?

 

[My Old Landy]

Nice job @Johnnybravo they are looking superb!

 

[galooph]

Thanks for posting, @Johnnybravo, always interesting to see what you're up to!

 

[Pete.]

Turned out a pair of brass bleed adapters for my bike. These are to go into the brake line ports so that I can bleed and test the ABS pump without having to keep going through the rigmarole of bleeding the entire front and rear braking circuits.