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a spiral flute drill that drills off center and breaking ?
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sounds like you are not using a center drill first and are using a jobber length or longer drill bit. a short screw machine drill bit is...

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it is called a boundary box. draw a rectangular box over hanging your open slot as far as you need. the rectangular box is used to create a tool path that stays in the box but machines your open...

the Mazak VMC I use with M32 mazatrol control has a automatic feed control and we have had it since 1995 so the ideal is definitely not new.
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experience with AFC
1) the auto default setting is...

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best training is getting a job as a mazak setup/operator. I got a job on a older m32 VMC. Manuals are 1200 pages and i am not including the maintenance manuals just the operation and programming...

0.1 degree = 0.100" per 57" or
0.1 degree = 0.010" per 6" (rounded number)
electronic levels often don't repeat finer than 0.2 to 0.5 degrees from different measurings
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a medium sensitivity...

draw a rectangle "boundary box" then select the boundary box as your pocket. if the boundary box over hangs your pocket on the ends the maybe this will work for you. most CAM software also allows...

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usually it requires maintenance to do a mechanical adjustment, although once after a Estop I had a machine that would not home and it required a parameter setting to be reentered AND a guard...

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the M-32 Mazatrol control and machine has a set of manuals of about 1200 pages. See Mazak for a copy of the manuals for your specific machine.
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There is usually a key switch that must be turned...

1/4" dia carbide end mill
2 flute ?
length and amount sticking out of collet?
coolant ??
suggested parameters
for 3/4" long / sticking out of collet 2 flute carbide end mill on 304 SS
by the...

UG NX is not the easiest to learn but after doing the tutorials enough on the Cad then the Cam I was able to get it to work for mills and lathes. It took some time to write post processors for a...

you need to look at exchange rates long term to understand history
1980 - 2006
File:1 RMB to US dollar.svg - Wikipedia, the free encyclopedia
2002 - 2012...

I am a machinist who after 32 years lost my job. I was trained on manual machines but took many CNC night school courses as well as make many hundreds if not thousands of parts (never counted) on 2...

use a fixture plate. basically clamp thin part to thicker part. thin parts over 2" and especially over 4" bow easily in a mill vise. picture attached shows part held with clamps. i have also used...

mastercam comes with several editors and some can file transfer normally by rs232 null modem serial port cable. i usually use a laplink cable.
spell - Google Search
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basically you have to set...

....pull out of chuck? so using on a lathe?
need more info
for example using a steady rest off center (easy to do) basically wiggles part in and then out of the chuck. i have seen parts pull out...

inserts are not all the same but APKT are pretty efficent
you ask what needs more power or what can take more power?
solid carbide cutter (carbide shank) can take more hp (stiffer and stronger) as...

small diameter end mills work better at slower sfpm. basically a 2 flute endmill cuts with 1 flute while the other flute is rotating mostly in air and cooling off. a small diameter has less distance...

watch the depth of cut with a
1/2" dia cabide end mill cutting aluminum
2 flute
1.5" long
at 20,000 rpm
at 0.007" chip thickness
at 0.291" depth of cut at 302 inches per minute feed thats...

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yes, if made for aluminum carbide end mills 1/2" dia or less can be used at 25,000" rpm. you might want to limit depth of cut or width of cut. a deep slot needs to have chips fly out of cut zone...

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if your cross slide dial shifts (and you do not want to fix it) , use a dial indicator and magnetic base and indicate tool holder with magnet stuck to lathe carriage. where no good spot for magnet...

check Mcmaster for sample prices although others may be less
depends on thickness wanted
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usually ground stock is in annealed condition and close to size. decarb free is ground stock often 0.010...

i prefer 0.030" thick double sided foam tape instead of hot melt glue.
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hot melt glue tend to be brittle. i glued a piece of aluminum to steel and after machining it still felt strong bond BUT...

there are books with tutorials for learning Solidworks along with Solidworks bible. take the tutorials many times and after awhile you start to remember what does what. it can be difficult for the...

learning any Cam software can be difficult. problems with post processors can be difficult too.
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I use Mastercam and Siemens Unigraphics NX5 both work ok. Mastercam I prefer as it comes with free...

0.25" dia 1 flute stickout 1.25"
rpm 2800 at 14ipm
DOC 0.250"
calculations show 0.22hp and 38 lbs cutting force at end mill tip
chip thickness 0.0048"
1) in my opinion your rpm is too slow, feed...

1.25" dia stickout 7.75" from holder
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try 2" stickout, after this proves to you it bores ok then get a bigger diameter boring bar.
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stickout 1/4 of amount is 4x4x4=64x stiffer or less...

Prototrak manuals at
XYZ Machine Tools Reference - Manuals
Manuals - Southwestern Industries, Inc.
....... older obsolete equipment manuals need to be ordered as they may not be online. but still...

i use double sided tape 0.030" thick to hold sheetmetal to smooth plywood the type masons use for forms and is sometimes called sign board. it has a smooth laminate surface that tape sticks to well....

i like Sherline tools very much for certain small jobs but

1) Sherline models are not very rigid especially on brass where a cutter can grab and try to pull it self in.

2) using a light duty...

good to hear it was just a battery.
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i am always surprised when they solder the battery rather than use a battery holder so battery would be easier to replace.
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i leave my Prototrak on. i was...