Hi, Historically the copyright laws in the USA were less stringent than those used by most other countries. The USA only got in line with the rest of the...
3177
Des
desbromilow
Jun 26, 2010 1:12 am
How I got the file was by loading the page link in vectroproxy.com's webpage proxy and then the PDF "down arrow" symbol appears in the top RH corner, and I was...
3178
thb201
Jun 26, 2010 4:44 pm
Hello group: Thanks to the help of one of the list members I know have the book. Yet another example of how our fellow machinists are ready to step in and...
3179
Neil Morrison
neils_morr
Jun 26, 2010 8:11 pm
I was able to D/L the book in Canada via http://vectroproxy.com No problem with the firewall or warnings. Neil From: thb201 It turns out that I am blocked from...
3180
Des Bromilow
desbromilow
Jun 27, 2010 5:59 am
Sorry, I have no idea abut the firewall warning - never get them myself (comodo F/W on XPsp-whatever the latest is)Â I only use these kind of services once in...
3181
Flash Gordon
ed.kolt
Jun 30, 2010 3:49 am
Hello, Two problems to beaware of when using solid bearings. One the spindle shaft will need to be micro-polished to get any time out of it. Two the top speed...
3182
squidsrus85
Jul 2, 2010 9:49 pm
Hi All, Many years back I made a few reverse mounted part off tool holders for 1/2" x 3/32" HSS part off blades for the BD920 lathes. Which is the better idea...
3183
James Early
j.w.early...
Jul 2, 2010 9:53 pm
If you use the modern "T" style blade you can run them flat front or back. If you use the antique style blades that most suppliers sell to the novices you need...
3184
squidsrus85
Jul 3, 2010 2:15 am
Thanks JWE,...
3185
Ian Newman
ian_new
Jul 5, 2010 10:00 am
Hi, Â If you want top rake on a parting tool it should be achieved by mounting the tool at the required angle to the horizontal rather than by grinding the...
3186
jim.klessig@...
jim_klessig
Jul 6, 2010 2:08 am
... Ok being one of them novices, what is the difference?...
3187
David Beierl
dgbeierl
Jul 6, 2010 2:15 am
... The old-style blades have an elongated V section and an angled bottom to clamp into a half-vee groove at the bottom of the tool holder. The T-style ones...
3188
James W. Early
j.w.early...
Jul 6, 2010 1:30 pm
Which is why the "T" style blades require only about 20% of the force that conventional wedge style bladeds do. This is also why they do not require a heavy...
3189
Mert Baker
mert.baker
Jul 6, 2010 1:45 pm
I bought all my parting toolbits years ago, and they are all the wedge type. However, one of 'em is now only an inch long, and I'll get one of the T type to...
3190
James W. Early
j.w.early...
Jul 6, 2010 1:58 pm
The difference is cutting clearance that if inadequate will cause heat and excessive friction. If the tool is designed with sufficient clearance regions like...
3191
David Lee
nhengineer
Jul 6, 2010 2:02 pm
Maybe someone would be so kind as to provide this uninformed novice [me] with a link to a photo of a "T" type parting tool. Regards, DSLee From:...
3192
James W. Early
j.w.early...
Jul 6, 2010 2:15 pm
I learned the difference when I first started parting off back in the early 50s and my boss asked me if I had suffered long enough with the wedge blade. When I...
This is a link to the Enco page. These blades are an industry standard item available from all commercial suppliers for knowledgeable machinist. They also...
3195
James W. Early
j.w.early...
Jul 6, 2010 2:45 pm
The little machine shop number is 1728 and Chris was amazed when I first illustrated how superior these blades are to the wedge style at the time we were...
3196
David Lee
nhengineer
Jul 6, 2010 2:48 pm
Marcello, The attached is the way your link appears on my screen. DSLee From: mlathemods@yahoogroups.com [mailto:mlathemods@yahoogroups.com] On Behalf Of MZT-T...
3197
David Halfpenny gmail
tuppenced
Jul 6, 2010 2:48 pm
Part of the effectiveness of the Tee blade shown in that advertisement is the hollow ground top. This curls the chip along its length to make it narrower than...
3198
David Lee
nhengineer
Jul 6, 2010 2:56 pm
OK, now I know what’s being discussed. I wish the greater Franklin, NH area had an evening machinist trade course. I have a really nice old Bridgeport and...
3199
MZT-T
mzetati
Jul 6, 2010 4:02 pm
David, the "long" link came out split: sometimes enclosing them among "< " and " >" works, sometimes not. A second try, having enlarged the line length on my...
3200
Mert Baker
mert.baker
Jul 6, 2010 4:13 pm
Don't have a photo, but if you can imagine first, a standard parting blade, and then imagine grinding away the sides except near the top cutting edge, ...
3201
James W. Early
j.w.early...
Jul 6, 2010 4:14 pm
This is true to a certain limited extent. The major factor that makes the "T" style blade so Superior in performance is the heavy side reliefs that reduce drag...
3202
Mert Baker
mert.baker
Jul 6, 2010 4:21 pm
I'm not sure, now, but I think that 60 years ago, I used to drive to the Franklin NH, area just to go to square dances. I'm in Hardwick, Mass., and used to...
3203
Frank Hasieber
fhasieber
Jul 6, 2010 6:08 pm
For the past 20 years I have used nothing but the TC inserts for parting, and grooves, most of the insert manufactures make them, here is a typical one: ...
3204
David Lee
nhengineer
Jul 18, 2010 2:44 pm
Mert, Thanks for your kind invitation. Hardwick, Mass is a two hour trip from here. You must have REALLY like square dancing. David Lee From:...
3205
Mert Baker
mert.baker
Jul 18, 2010 2:54 pm
In those high & far-off times, I lived in Barre, MA, & there were 3 of us that followed Ralph Page's Orchestra around. In the summer, I lived in Groton MA, a...
