Member postings for Martin 100

Now and again there is a distinct lack of inclination for web pages to come back from the arceurotrade server. It used to be quite snappy 100% of the time, now it's like stirring treacle at minus 20 deg C A few minutes later and it's almost back to normal

Made one about 35 years ago. Both it and the plans have long been lost, never ever seen the book I just had a dozen or so A4 sheets. Would love to make one again.

Got an unidentifiable taper on a 1990's machine tool spindle, the largest diameter is 1.25 inch, taper is 7/24, so you'd expect it to be a 30 taper and the drive dogs on an ISO 30 toolholder certainly match the spindle nose. But the overall length of the taper in the spindle is around 1.25 inches not 1.9 inches.

Can't see any matches here

**LINK**

or here

**LINK**

Any idea what taper I've got?

Wouldn't happen to be an ER32 one intended for fitting to a Boxford would it?

Went through quite a few before I gave up, got a refund and fitted one from Arc Euro to a backplate, it's far less elegant but it does the job. The Soba one was tried on I think five different spindles dating from 1952 to 1980ish plus a brand new 'still in the packaging' one from Boxford.

Can't fault Soba at all on the finish or the consistency of the work as they would all stop threading onto the spindle nose at exactly the same point.

Other Soba stuff has been ok, got a couple of their ground all over 'precision' milling vices and something else I can't recall right now.

Edited By Martin 100 on 08/08/2014 13:37:32

Despite imperial and metric dimensions being in the number 10 book the drawings supplied with the more recent stuart castings explicitly say they supercede all other issues of the drawings. They are now only dimensioned in imperial.

There is a dimensional error in the number 10 book, it is mentioned in a forum, maybe even this one but I can't recall what it is.

There is also at least one and maybe two dimensional errors in the text of the (extremely useful) online Harold Hall series on building the 10.

Edited By Martin 100 on 29/07/2014 15:11:12

**LINK** (or any other bike shop)

Not 100% sure if any of these are regulated regardless of price or if, as I suspect, it's just a case of an application of Boyle's law. (It's certainly possible to overpressure a small diameter road racing tube rather than a fat mountain bike one)