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The tapered center hole on a rotary table is to accept a pin...tapered on one end which fits precisely into the hole, and the other end is usually ground as a straight shaft several inches long. If...

Problem solved. :) Looks like someone was fortunate enough to have saved all the Macro machine data to disk including the tool setting programs and calibration settings. Loaded it all back in. It...

I've never seen an Albrecht chuck head that did'nt come with a tapered bore for mounting to some style of machine arbor. Every one I ever dealt with either came with a No.2 or No.3 Morse taper and...

Thanks dcoupar. Your response got me investigating this more into the parameters as a possible reason. It appears macro variables have Q-setter data stored in them. Variable #509 was set to (zero)...

Our department aquired a Puma-550 VTL with a Fanuc21T control from another department within the same building.

I ran this machine before the move and I had set tools using the Renishaw Q-setter. ...

Yellow brass is pretty forgiving and easy to cut. I have done turning at .250 depth of cut or roughing before on a good sized lathe. Turning brass is no problem.

The knurling part sounds about...

http://www1.mscdirect.com/CGI/NNSRIT?PMPXNO=1658593&PMT4NO=43467837


J&l probably has it also. You might be able to find it locally at an area tool supplier

I would try the one line format like I use on a 21T. It accepts both, but one line is faster to input and, as normal, successive spring passes or too shallow of passes usually results in chatter...

Your 18t may be like my 21t on an SC-300L. There are no work coordinate offsets 'cause it has a fixed local coordinate system. Running multiple sub-programs with changing machining conditions...

Yep! Good old cyanoacrylate. aka Super-Glue or Krazy-Glue works well for certain applications that dont require much thickness or support, just to stay put. Be careful not to use too much or you can...

Oh heck yes. A tight toothed belt and pulley system is going to be better than a gear drive first of all. With gears, you have to have a small amount of backlash for lubrication between the teeth. ...

Sorry, but I couldnt resist. Only someone that really does it for a living would truly appreciate the tool thing. I didnt think you were actually bearing the indicator on a rotating spindle though...

Also destroy it in one year, or less.
For heavens sake keep the door closed while the wheel is running.

Please remind me to never loan you my tools.:)

Sorry to say he will likely never achieve anywhere near that kind of flatness in a "free state" with a plate that big. It will warp all over the place just from machining stresses alone. It will...

Well, it depends on the type of work you are doing, and how critical. If you have someones' part on the table which might be worth a hundred grand and has 100 hours of machining time into it, as an...

It will be easy and quick to see the difference between 1045 crs and 4140 by doing a spark test with a belt sander or grinder. 4140 has a bit more carbon and will give shorter streams with a lot of...

Lol dude! Taking pictures in a Defense plant? Talk about career suicide and setting ones self up for potential prosecution for espionage.(nuts)

My most expensive single part was probably a front fan frame for an aircraft enjine. At that time it was the very first investment casted, one piece, Titanium fan frame ever created and it took a...

This sounds like a real technical challenge with all the various lobe centers, lifts and degrees of duration involved. Then the matter of getting a real good surface finish for durability and wear...

Yes indeed Ti will also burn and cause a fire in and around a machine. I saw it personally happen with another Machinist over 25 years ago on a 50 inch King VTL. The part was a jet-engine exhaust...

Castrol Moly-Dee is the best I have ever seen for superalloys like Ti, and Inconel, 17-4,15-5...etc. Expensive though but well worth every drop.

I 've cut internal 60 degree and 45 degree internal splines using a Bridgeport Shaping Attatchment and a good quality rotary table before, but that's a simple angled tooth profile on the cutter. ...

Lapping is a precision abrading process used to achieve, parallelism, flatness size and surface finishes to extremely tight and demanding tolerances. It's a manufacturing method that employs...

Yep, everybody makes mistakes now and then. Just learn from it and go on because there's ohh so much more time to make all new mistakes. Keeping all your body parts is primary.

I think I got you...

The 3 reed flaps would be the most difficult to do but not impossible if you make a punch and die. For just a few parts it would'nt have to be too elaborate.

The outside and holes are the easy...

LOL Geof. Yeah that's pretty sophisticated. Not to mention expensive and potenially dangerous if you spill it on yourself without the proper safety gear. I had a job one time where I thought the...

That discoloration part may happen if you get it too hot with a torch. I don't know if a few hundred degrees will do it or not, but I imagine temps on the order of 500 or more would.
Chrome...

Id say if you absolutely have to knurl this part because you don't have authority to make an engineering change in either mating part... then knurl with a clamp type tool to an oversize condition and...

Far as I know the scales should be accurate over their entire travel of it's 'readable' length. I've never thought it would be to the contrary: within acceptable limits of good quality machining...