Member postings for thaiguzzi

You are likely to suffer chatter and vibration that will limit what you can cut with MT2 and get a poor cut long before it breaks. The vibration may also cause the taper to loosen by vibrating the drawbar loose which can lead to using a bit of pole on the drawbar spanner to cure and excess hammering of the drawbar to realease the taper to change tools

Your column may be more rigid that a far eastern machine of a similar size but look at the surface area of the joint between head and column, maybe 4 times that of the shaft that your head is supported on and with less overhang

Edited By JasonB on 27/03/2020 08:33:25

My comment is that if you want/need a mill with (seemingly) twice the power, then get a bigger miil.

Cleverer fellows than you designed this mill to use that 1/2HP sized drive. Doubling it should require more than simply changing the motor. I/m rather assuming, here that your aim is to install a 1HP motor? 3/4Hp is possibly too much.

Why a brass ring? Aluminium or steel would be cheaper. Even plastic. Could drill identical holes at 180 degrees and fit one ‘dummy’ opposite the real one. Or what is the difference in density of the magnet and the pulley? Assuming here the pulley is not a pressed steel item. Fitting two identical magnets, opposite to one another, would likely suffice.

Edited By not done it yet on 25/03/2020 08:59:36

I saw one similar of an Asian woman rendering a wall. It was on a staircase. A right grafter.

Steve.

Yesterday I bought a copy of Wolf Hall (it was half the price of the new one, and I reckon I need to read them in order).

I'm sure some of us will be thinking this is a good time to tackle "Au Recherche du Temps Perdue" or "Ulysses" but perhaps there are some better suggestions for filling the hours?

So, what are forum members reading, engineering related or otherwise?

Neil

Last year I replaced my Dickson type tool holder with a wedge type one from ARC Eurotrade. Very happy with the new tool holder. My reason for changing was the old tool holder had too much play in it that allowed the tools to deflect downwards slightly while cutting. The wedge design by its nature takes up any slack when you tighten it which the Dickson type does not.

Stubs used to make silver steel, seems the trademark is now owned by this company, more background info here.

Thor

Edited By Thor on 19/03/2020 11:14:52

Thank you all for the quick responses,

If I take quality and stupidly expensive out of the equation, does any particular design shine through? Although it sounds like not.

To answer one of the questions above, I intend to have about 7 tool holders.

only a Wally

I came across one. He had not installed the propane bottles inside the house, but they were inside the attached garage. His local gas supplier/installer had words with him (I did not say anything to the fellow at the time as I did not want to fall out with him - but could not let it pass as un-noticed).

One can never rely on any isolation device unless it is designed as truly ‘fail-safe’.🙂. Many safety catches on guns only prevent the trigger being pulled - not preventing an accidental discharge due to a mechanism failure. Not many are aware of that.🙂

I just took a look at my shapers to see what is what. The 18 inch Alba has the arrangement that puts the screw under tension. The 10 inch Alba does not, the screw will be under compression. Those are both original vices. The Ammco shaper does not have an original vice, but I have the drawings and that would put the screw under compression.

I think the main feature of a shaper vice is that they are usually low profile.

I don't think that the cutting forces on a shaper are any higher than with anything else, the only point you should watch is when the cutting force is along the vice jaws, when it may move the job. A piece of paper between the jaws and the job is enough to prevent this.

John

Well, 'thread drift' has allowed this thread to reach rock bottom, so, unashamedly continuing the theme... Anyone who has tried to clean chocolate spread off the face of a toddler, using only dry tissues, soon discovers it's impossible and will appreciate the superior cleansing abilities of 'wet wipes'. Pity they clog up the sewage works. In fact, dry tissue is such a poor cleaner, it's not surprising that cultures which use water for 'personal cleansing' (or whatever the PC term is) look upon the western paper-wiping world with scorn.

This forum is a mine of information - perhaps someone can enlighten me, especially in view of the possible imminent paper shortage. Having been far abroad and seen milk bottles half-full of water in lower-class conveniences and small hand-held shower-heads on flexible hoses in more salubrious ones, how on earth is one supposed to use water instead of paper, without getting it everywhere? Such knowledge could be very useful soon...

At the end of the day YOU may call it what you like but it is plastic and it's cheap nasty crap product.

Try looking at the bottom of road sign posts and you will see how bad it is. The only finish that lasts on exterior steel work is galvanising!

Now THAT is close to utter Tosh! Really no need for such a frothy , esp if your facts are awry...

Of course it is a 'plastic' . That may be a loosely used generic term, but it fits.

a sound description:

There are two main categories of powder coating: thermosets and thermoplastics. The thermosetting variety incorporates a cross-linker into the formulation. When the powder is baked, it reacts with other chemical groups in the powder to polymerize, improving the performance properties. The thermoplastic variety does not undergo any additional actions during the baking process as it flows to form the final coating.

The most common polymers used are polyesters, polyurethanes, polyester-epoxies (known as hybrids).The latter is not common for general use, eg, garden furniture, household white goods, street signs, etc, but most often used in Marine and hi-demand/cost applications.

And as Model Engineers all know, polyesters, polyurethanes, etc fall under the category of engineering PLASTICS..

(jeez..)

Edited By Joseph Noci 1 on 04/03/2020 06:53:04