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You need to use a high helix drill with 135 deg. tip. Otherwise,the chip will not eject properly. You don't need carbide. A coated Titex HSS will do just fine. Do not peck too much or feed too slow...

I feel your pain bud. I work for a couple of morons that couldn't find their ass with both hands. I need to find a new gig ASAP! I have beat my head against the wall for 4 yrs riding out the...

The machine may not like the x,y values on the G84 line. Try positioning the machine first,then M29 S300;
G84 G98 Z-.75 R.5 F.05;
and see if it runs.
Dan

As others have said-it depends. Do you have thousands of parts to run? If so,a horizontal is the way to go. Do you have good programming skills? It is vital on a horizontal.
A horizontal mill will...

SPI makes a nice electronic edge finder. Of course,the material must be metal.
Dan

Look in the machinist's handbook. It's in there.

We machined similar parts years ago and had one launch across the shop at 6000 RPM. Luckily,no was killed. Afterward,installed 4 small washer/clamps on soft jaws for safety. Glad you are OK.
Dan

Copper is very abrasive and gummy. You wont get a good finish using a 4 flute HSS E/M. Try a 3 flute or 2 flute carbide E/M and use kerosene or charcoal lighter fluid for lubrication. Raise the RPM...

Good luck trying to do that. The amount of horsepower required is enormous. Why should the customer dictate the method,as long as the threads are good? It's not worth wiping out your spindle for an...

Too much RPM for HSS. 60-70SFM on drills in1018. DO USE a 4 flute endmill and plenty of cutting oil. Drill a pilot hole for your E/M to plunge in Z.
Dan

Kevin-look at the simple things first. Remove the sheet metal cover at the front of the table and look for chips packed in there. It is a very common problem. The switch may also be sticky. WD-40 and...

10,000 to 15,000 RPM at 80-120 IPM roughing. Blow cold air on the cutter. Take less in Z,~.200 per pass and work from the outside inward. Delrin will chip off the corners if machined from inside to...

First the good. 303 is butter as far as stainless goes. The bad-you are drilling 32x the dia. of the drill. My 2 cents...
1)#2 C/D @60 SFM Z-.060
2)1/8 jobber drill as far as you can go
3)Taper L....

There are so many factors that go into rebuilding a spindle properly. The most common cause of failure is too much grease. Most of the one's I have done take no more than 2.5cc's. Speaking of...

You are going to have to "one step" it through the atc cycle at the control manually to get it un-hung. For some STUPID reason,years ago,Okuma stopped letting you call the same tool more than...

The float switch in the coolant tank is stuck in the down position. It may be buried in chips.

Tape a penny on the prox switch and jog the arm through the sequence back to home. Get the book out for the proper sequence steps. You may have to reset the tool numbers back to normal after you get...

The more you learn(know),the more you make. The dollar figure depends on what part of the country you are in. I've been doing machine work for 20+ years. I also repair and "untangle" CNC machines. In...

Bore for position,ream for size.

You might try this just for grins. Smear red lipstick around the flange of the tool holder and do a tool change. After inspection,it may tell you what is going wrong.
Dan

Pretty impressive video-but that wasn't 600 IPM. 600 might have been in the program,but the machine decell params were not letting it go that fast. I've seen a Kitamura 3X doing 340 IPM at 14,000 RPM...

Tom-follow your instincts. 10mm is very thin for a fixture. The thicker fixture will provide better results. Plus,as it wears, you can resurface it. I would use 25.4mm(1.0").
Dan

Only the lower # variables get reset. Try using #500. I've used it many times with no problem at all.
Dan

Pull the sheet metal cover off from the front of the table(facing the operator). The X-axis limit switch and decell dogs will be visible. Clean out the chips and coolant goo,and try again. The older...

When a machine executes a tool change in about 2 seconds,every aspect must be near perfect. There are too many variables involved to say what is wrong without checking the machine. You need to call...

MIC6 aluminum is cast and blanchard ground. Usually flat within .005". I would anchor it and machine it flat for use as a fixture.
Dan

Wow. You have a real challenge on you hands. I have done small holes in plastic,but not that small. Keep in mind that you are attempting to drill with a piece of wire.
Delrin (acetal) was made to...

+1. Only use NBU-15 and use an oral syringe to inject the correct amount of grease in cc's or ml's. Too much grease will kill the bearings as they can not dissipate heat. Also,the preload is very...

HKU. School of Hard Knocks! 20 yrs and counting...

It sounds like one of 3 things may be wrong here.
1) A chip on the ATC prox switch.(Can not find #1)
2) The tool pot numbers in the ATC are not assigned in the parameters.(You may need ghost tool...