Member postings for thaiguzzi

Posted by Simon Collier on 24/09/2018 03:47:56:

I find the modern perversion of the Thomas books very distressing. Anything not written by the Rev should be banned, and heretical books burned.

Posted by SillyOldDuffer on 28/08/2018 10:56:08:

Not at all. Quite a few haven't spotted that you can edit original posts after pressing the Quote button, and/or that fresh typing should appear underneath and after the sidebars. The forum isn't the most intuitive software on the planet!

As far as I know there isn't an edit approved style. I like to leave the names in and use ellipses (...) to show where I deleted something. The main advantage of editing is to focus reader attention on a particular point by removing everything else. It also means the reader doesn't have spend time re-reading the whole post.

Editing someone else's words can be dangerous; it's not fair to deliberately mislead by taking words out of context, and I've done that by accident a few times. People sometimes complain when their name is left in when their contribution had nothing to do with controversial developments.

Dave

Posted by Andrew Johnston on 23/08/2018 11:24:00:

Well that was a waste of internet bandwidth; copying the whole of the original post just to make a zero content comment. It's the electrons who whizzed around the world to no avail I feel sorry for.

Andrew

Posted by Mark Rand on 24/08/2018 21:49:34:

If it's woodspoiling equipment, then wax can be your friend.

 

If it's metalspoiling equipment, then use the way oil that you use on the ways...

Posted by Andrew Johnston on 22/08/2018 19:13:47:

In another thread I promised to show my method for setting a machine vice parallel to the table movement on a milling machine. Rather than clutter up that thread I've started a new one.

First I check the table and bottom of the vice for swarf or nicks. Then I place the vice on the table and align it roughly using the as cast clamp cutouts against the edge of the T-slots:

Then I fit the clamps:

My clamps are from a standard 5/8" milling clamp set. The left side clamp is done up until it bites, and then a bit more. The right hand clamp until it isn't loose. Then I use a DTI against the back of the fixed jaw to fine tune the position:

I start with the DTI at lefthand side of the jaw and move the cross feed until I get a reading; doesn't matter about the actual number, but note it. I then move the vice a bit to the left and see what the DTI reading is. If it's changed I tap the vice at the handle end to return the DTI to it's starting number. The theory is that the vice pivots around the tighter clamp. Depending on how far out the vice is I might make several adjustments across the width of the jaw, or just one. I then tighten both clamps rather more and run the DTI back to the start. If there's no change fine, if there is another light tap. Then the clamps are finally tightened and a check pass made. Generally doesn't take very long, a few minutes at most.

Some other points; I indicate on the rear of the jaw because the DTI won't reach the front. I checked the jaw width with a tenth micrometer this afternoon. I can't really see any difference in readings; possibly half a tenth? So it's essentially the same as checking the front. Total time to set the vice up and take the pictures was less than 5 minutes. Now the embarrassing bit. It was quick because I was less than 0.02mm out over the jaw width straight from setting by eye.

Special note for SillyOldDuffer: Feel free to curse me as some smug barsteward who sets his vice right from the word go rather than suffering like everyone else.

Andrew

Posted by ronan walsh on 21/08/2018 01:02:39:

I had a pair of Newman cams for a triumph twin a few years ago, and they appeared well made to me, no machining marks , nicely polished and nitrided. Other people i know have been critical of their products, one in particular had a problem with dimensions of a hole in the end of a cam for a japanese car, reckoned they did not want to know when he raised the issue with them.

Posted by John Reese on 21/08/2018 00:08:34:

Getting the correct fit on a Dickson type tool holder is a lot more difficult than on an Aloris style holder. On the Dickson there are two Vs that have to be parallel and an exact distance apart. I admire those who are up to that challenge.

Posted by Michael Gilligan on 18/08/2018 08:56:34:

.

They certainly tell a good story

The website is very well presented and informative. **LINK**

http://www.newman-cams.com/prototype-vintage/

MichaelG.

[ just browsing ]

Posted by IanT on 18/08/2018 10:10:06:

Most of the well known YouTubers (wrt machine work) have been mentioned but I haven't seen any reference to Joe Pieczynski - who is a professional machinist from Texas. Well worth watching - certainly knows what he's talking about, with many useful ideas and tips to help improve your work - recommended.

Regards,

IanT

Posted by Limpet on 16/08/2018 21:14:25:

Thaiguzzi, I think yours are a bit more involved than mine and look very nice. My next challenge is either a spherical turning tool or a knurling tool for the toolpost (well they will be challenges for me)

Posted by Limpet on 15/08/2018 20:12:50:

Ok I've only finished it all today but it is also my first proper project in metal. The main question is have I made enough?

Posted by Carl Wilson 4 on 10/08/2018 16:43:10:
LH Sparey's book is very good. Most of what he talks about in the book is done on Drummonds, so seems like a good book for the smaller lathe.

Lathework, a Complete Course, by Harold Hall is also very good. It's a Workshop Practice series title. I too have Chapman, from over 30 years ago in training and still excellent.

I'm going to suggest something else that is not a book. Machining is inherently practical. Watch some of the you tube machining channels.

In my opinion the best one is a guy called Doubleboost. He is British and he is very down to earth and does some interesting projects. His channel is Sunday Night Night Cap. Puts out a new video every Sunday. The old ones are all archived. Highly recommend - equal worth to reading several books.