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Back in the days before computers when we had draftsmen, it was quite possible that was done by a 'technical illustrator'. Some could have been converted from photos as per John's thoughts but...

A 10A circuit probably has something like a 16A breaker on it, so over current can be tolerated. Worth considering too whether you are really getting 140A as output rather than what the display is...

In a steady-ish state setting and knowing that the power levels are correct, I can completely understand. I'd love to have the skills to be able to work that way myself. Until I get that good, I'll...

I'm using Firefox. The person I was speaking to said it was an upgrade to the main viewer, so if you haven't seen it yet, I would not count on it not happening.

Michael

Youtube did a recent upgrade to cope with improving video standards but also changed the layout, so that when you are logged in, comments are on the side and thumbnails underneath (as opposed to the...

Got an email from a US company today, advertising it's latest offering, including this -

Another revolutionary feature of the Invertig 251 is Dynamic Power.
This feature allows you to vary the...

Have a look at one of these - not cheap, but good stuff rarely is. These are used in some of the US based car modification youtube channels.

https://www.machineryhouse.com.au/p8990

Michael

I've always wondered why an antenna is named after a cartoon bear, although if this is a three element job, does that mean when it works really well it's a Goldilocks antenna?

Michael

Nice Bob. Is there a wiper to set the wire against the cylinder?

Michael

405548
Drawer fronts have a sloped upper edge, to try and deflect swarf & chips from the mill onto the floor rather than into storage. Only time will tell how that one works...

Michael

Looks like it's yours Steve -
405546
Better bring your best towels to wrap it in (I'm sure the better half will quite understand...)

It's a UK product I think. Given its age, it could well be...

As per my metalwork project post, here is the redundant hoist.
405542 405541
As the finely drawn sketch says - 1.3m travel on the chain, and total weight is around 8.2kg. The crank has a weird...

I could well be wrong, but from memory the sets of inserted tools that you have shown use odd inserts that are not readily available. Use them while you can, but plan on upgrading to a more standard...

Chain length is 1.3m
As there seem to be a couple of people interested, let's stop doing things in this thread. I'll do some measurement and post something in the marketplace forum, probably...

Ever since getting my universal dividing head, I've been lifting it from the cupboard it lives in at knee height up to the mill table. It weighs 30+ kg...

Shortly after lifting it the first time,...

From memory the rough rule of thumb I picked up somewhere was 1/8" crown per 12" width. It does not have to be much - I think I usually just use a file to shape the surface. The belts ride on the...

This might be of interest to members -
https://www.youtube.com/watch?v=1TkneKIhR-k

Michael

Maybe...
I would be concerned that a toothed belt would be slightly 'jumpy' because of the teeth. Probably barely noticeable, but while non-toothed versions can slip slightly, they are smoother in...

316 is used in marine environments, 304 used in more mundane applications. Provided that you are not doing something weird with it (like splashing salty water at it constantly), 304 will probably be...

I must admit that it has me intrigued; like Jack I was thinking of other things that it might be able to do. The pressure is not much though - 2.5 bar (vs 6+ from a standard compressor). My plasma...

Friend of mine did something similar - had some radio headsets but the plastic nut inside had broken along the knit line (they were injection moulded). Could I make some in aluminium (M6x0.75)...

This is the critical fold, and where the width of the folding leaf is important - I assumed 50mm as it was not marked on the sketch
405401
It can be folded.
405400
Michael

Yes.

I think you should be able to - depends on the bending leaf thickness (I could do it on mine).

Michael

What size Al do you need (just in case the Tennant Creek branch of Capral is not open when you call in)

Michael

Works for me. Maybe make the arm a little longer so it can swing forward when needed.

Michael

Actually, brass etching is something I haven't done...

Michael

Nice save - the business end looks fine.

Michael

Gee Kryn - I showed that over 2 and a bit years ago... :doh:

https://youtu.be/hiqyBfpMwuY

Michael

Remember that a test bar will sag under it's own weight.

Michael

The bit on the column is just a turned ring and you have that piece from the lamp. You should be able to make something up. If that lamp piece is the wrong size there are other ways of getting that...

The stock is only 105 long and less the 25mm slice, it means there only needs to be 80mm of clear overhead between the blade and where the bow sits (note that the handle can be removed too). An...

Try it and see. I was once told that modern grinding wheels are so well made (in comparision with older efforts) that balancing is rarely needed. How true I'm not sure but (once dressed) you may find...

I think I can do that on my 4" bandsaw. If someone with something bigger shows up, then go with that but if there are no takers I'll have a go.

Michael

Some of those tools look like brazed carbide - probably would not hurt to stick them in some evaporust, see how they clean up. The rust looks nasty but should clean up and with a bit of a sharpen,...

Looks a lot like mine Bob, so if you need dimensions for the handle, let me know.
I think there should also be a spring for blade return too.

Michael

Steve is an engine maker in the US, specialising in 'drag and drive' engines making 3000 to 5000hp.
He bought a large HAAS 5 axis horizontal machining centre that he is getting converted to 4 axis...

Only if the screw has some sort of stop or brake on it so that it can't run away. Ball screws are known for doing that so potentially climb milling is more risky :doh:

Michael

It is likely that if the nut has worn, the leadscrew has worn too, particularly if like most of us, you don't work all the way across the full travel of the machine all the time. Check by winding to...

Given how fine the grit in these stones can be, if it works as advertised, I'm not sure if that would cut anything - more rub/ burnish. Then from Reidy41's post, as soon as you rub them together you...

My personal opinion is that precision ground stones are not something I would buy. I could well be wrong, but I can not see any great advantage to them over off the shelf stones, and I use one of...

Actually, it is a more common practice not to put burrs and dings in there in the first place.:U

I can't remember the last time I had to stone out a ding on a precision surface. I know there are...

It will stain it yellow. Rather than soak, how about wrapping the metal bits in paper towel and soaking the towel with Evaporust?

Michael

For a low resistance, high capacity resistor an electric stove element may be the go. I snagged a few from the bin at the previous place for a vac former I intended to make but one of the guys...

With respect to the repeat-o-meter, this thread may be of interest.

https://metalworkforums.com/f65/t178131-testing-hand-surface-plate

Michael

G'day Kryn
Yes, the RHS can be Duragal. There is a small amount of welding to be done but I can strip the coating locally.
Next weekend will be fine.
I had not thought as far as shelving...

I'm planning an upgrade to my mill accessories cupboard. Before I throw myself on the mercy of the local steel suppliers, does anyone near by have surplus steel they want to get rid of? I'm after

...

Are you sure it's not what we old buggers call 1/4"? (6.35mm?):roll:

Michael

To do that sort of thing, I cut the external thread first and size it with a thread mic (or wires). Usually I will make the blank slightly smaller, so not much point measuring off the OD. Typically...

I have one you can borrow if you wish.
What is the model of your drill? I am wondering about the health of my drill chuck; it seems to do a wonderful job of galling up the drill bit shanks.
...