User Profile

[old mart]

The Smart and brown model A can only make 76tpi with the leadscrew, although I could double that just by halving the leadscrew gearing. The feedscrew...

[old mart]

That will do the trick, although it will loose some of its original strength.

[old mart]

Yes, that is a flaring tool, but there are several different designs, not just the one.

[old mart]

If you use a grease gun in this situation, pump the grease as slowly as you can to reduce the possibility of popping off the outer seals. I would tend...

[old mart]

I gave an older pc with W7 on it to my cousin to use with Photoshop CS2. He does not have it connected to the internet and it works fine and is safe from...

[old mart]

I agree that 240tpi would be rather fine for most work, but would be useful for general turning. I often set the lathe to 76tpi to just cut, rather than...

[old mart]

I agree with your dislike of "apps", Paul unfortunately we have to live with these buzz words which have migrated from the smartphone era.

[old mart]

Those props are for their fishing and general river cargo boats. When you are looking at the video, check out the others listed on the right side of the...

[old mart]

I didn't understand that either....

[old mart]

I run W10 insider preview which is ahead of the general available versions, and do agree that change just for change sake is a poor way to run a business....

[old mart]

I believe that the boring bar has a hole drilled in it to accept the carbide rod. This is on the centre line and angled to produce the flare in the tube...

[old mart]

Looking at the close up of the bearing, I notice a shoulder inboard in the black part. I wonder if a metal ring could be made to trap an o ring where...

[old mart]

At a guess, the thread depth would be 0.005", so 1 pass at 0.002", 2 passes at 0.001" and 2 at 0.0005" would result in a reasonable...

[old mart]

I use Firefox, and allow their updates as soon as they are available. Windows 10 pro, 20H2 19042.746. Windows insider beta version.

[old mart]

That is the sort of special tool that a firm like PH HORN would make. Solid one piece carbide like the Iscar Picco boring tools. The museum's Smart &...

[old mart]

Georgineer hit the nail on the head with "warrington hammer", and also brought back a long lost memory of the name to my old head.
...

[old mart]

I thought that the shaft size looked small for the diameter of the props. Aluminium is probably cheap there, think of all the old B52's laying around...

[old mart]

Look closely at the bar, it has a square shank so far back from the tip that only 2 screws are holding it in the QCTP.

[old mart]

Ultra lightweight oxygen bottles have been used in aircraft. They are made of aluminium and are wound with kevlar, or carbon fibre. They cannot be hydrostatically...

[old mart]

I have mentioned this several times on this forum, the engine is originally a French design. We have several fuel injected examples at the museum having...