Member postings for Ian S C

Hi Chris, good to see another Stirling Engine fan, I'v built a number of them, but no kits or castings.

Ian S C

A way of resurfacing a worn oil stone is to use a face mill in the vertical milling machine, use worn out tips in the face mill, keep the speed down. I think I spotted the idea in an old "Model Engineer" mag.

Ian S C

Soft soldering needs more cleaning to get is right.

Ian S C

Some of the 1/4" drives seem to be nearer to 6 mm, the sockets seem OK, just the drivers are a bit sloppy.

Ian S C

Thomasin, you can contact Barrie using the personal message system, you will find that at the line just under the message box, go to Barrie's  message and click " Message Member".

Ian S C

Edited By Ian S C on 19/06/2019 12:05:54

A case of you buy our strong arm, you buy our sockets.

Ian S C

I was watching U tube the other day, the chap was using a slitting saw, he mentioned that all the saws tend to ching ching, but once he got cutting he upped the feed until he got continuous cutting sound.

Ian S C

Edited By Ian S C on 18/06/2019 14:16:22

I needed a 3 flute screw driver, so I ground the end of a worn out Philips screw driver, then with the Dremel tool ground in the 3 flutes, job done, now I'v got a screw driver that I'll probably never use again.

Ian S C

Even my Rexon vertical milling machine has about 1.5 hp, and that at times feels underpowered, I would say 2 hp would be a starting point for a horizontal mill, maybe 2.5 hp if electronically controlled.

Ian S C

A generator run on a small turbine, or any small power source would be pushing it to get to 50% efficiency, so there will be quite a difference between the electrical output and the brake HP measured with a Prony Brake, an interesting little experiment on it's own.

Ian S C

Ask the cricketers where the water comes from(World cup cricket at the moment in England and Wales).

Ian S C

I find no difficulty turning hot rolled "mild Steel"(no spec) with a fairly worn Box-Ford A using HSS or carbide tools.

Ian S C

For a handy source of tips for the like of small boring bars get hold of a worn out carbide tipped circular saw(one of those round things with teeth for cutting brown stuff), remove the remaining carbide teeth, these can then be brazed into a home made tool holder. Watch out the tips are ground alternately left and right. Sorry it does not show up too well.

Ian S C

Edited By Ian S C on 17/06/2019 15:37:49

My answer to quality complainers is if you can make for the same price at better quality why are you not doing it. Admittedly quite a bit of the price goes to the retailer in mark up.

Ian S C

If you put Naerok in the search window just above your name at the top of the page you will find a manual there that you can save or down load. I found it handy as I have the same mill although here in New Zealand it is called Rexon, still made in Korea.

Ian S C

Just follow Ketan's advice, he knows bearings.

Ian S C

I have a centre fold chart in the workshop, can't remember if it came from Model Engineer, or Model Engineer's Workshop.

Ian S C

Ron, I'd tend to use hard shim washers, similar to those found in electric motors, if I need them, and can't find what I want in the junk box I go to my bearing supplier who has all those sort of goodies. Some times there is a nylon/plastic washer between two steel washers.

Ian S C

Welcome Mike, yes we would love some pics, your contraption doesn't need to be beautiful to be photogenic.

Ian S C

Members of model aircraft clubs pay a membership fee, and as members have training classes, and are schooled up on CAA regs covering their sport. There is quite a bit on "drones" in the Wings over New Zealand web site, I tghink it's in the NZ Civil aviation section.

I know that there are some model aircraft in the Christchurch club that could in the wrong hands do major damage.

Ian S C