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Tiny Hole Drilling

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I have a job coming up next week where i have to drill a 0.09mm hole 0.4mm deep.

The material is brass and i was wondering if anybody has any experience in drilling these kind of sizes.

I will be doing the job on a sliding head lathe.

Mazatrol Matrix Pocket Cycle

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I have used the Tornado cycle and the circular cycle on the Mazak and have always been less than impressed that the circular cycle does not allow to ramp onto the cut rather it just pitches out along Y axis and then makes the circular cut - with a ramp off. Only on the final pass does it ramp on and off.
I have been through the manual twice looking to see if there was a parameter that could be changed but found nothing.
Also tried G13 in EIA but the 'ol Mazak doesn't accept G13.
Found a useless Spiral path in the Manual but no pocket cyle.
Any help out there ?

Hard Drilling Recommendation

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I need to drill a .126 +/- .0005" hole through .300" thick 4140 hardened to 46-50 HRC. About 100-200 parts per day. I am thinking a Guhring 5514 drill, but wanted to ask if anyone has any better recommendations and *approximate* expected tool life. Thanks!:scratchchin:

Blaser coolant. Blasocut 2000 / BC935SW

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I have been using Blasocut 2000 CFSW for 5 years and have been putting up with the lingering smell on my hands. It just can't be washed off and it takes about 4 to 6 hours to disappear. After talking to a rep about the issue he informed me that Blasocut 2000 is discontinued and recommended BC935SW as a replacement.

Is anyone using BC935SW and can you wash the smell off?

The smell is not biological and is present even in new batches. It is kind of a chemical smell and really annoying. Nothing like the pleasant smell of oil.

Thanks,

Need help chosing a tool room lathe

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Good afternoon Gentleman, first off I’m not new here but been away for a while. When I went to enter my e-mail address to recover my password, they said I didn’t exist. Anyway boys I need your input. We need to purchase a new CNC tool room lathe. I read and read just about every thread here on different brands of units. It gets very confusing. Every time someone brings up a brand, someone jumps in and says that is good for short runs but not top notch. What’s always missing is nobody ever says what the brand of top notch unit is. From what I’ve been able to figure out is there are only five or six offerings in this class of machine. We are leaning towards a Fryer 21 with a turret because of more power and boxed ways. We looked at Haas but one of my biggest cnc sub contractors told me if I buy a Haas lathe he’ll never talk to me again. This coming from someone with 30 million clams in Doosan machinery, I got to take what he says heart.
I would love to get a new machine center period but the limited space in our facility right now does not permit its purchase. Until we find new digs I’m stuck with a tool room lathe that I can operate manually when needed. So your opinions would be gratefully appreciated. Bob

CNC G & L encoder problem

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Would like some info. if available.
This boring mill has a spindle encoder made by RSF model# DG 118.
Anyone have a pinout diagram for this encoder? we are trying to cross reference to a good substitute.
Thanks in advance.

Software for engraving with C axis lathe

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Looking for some software to engrave simple part number on the face of a family of parts we build in house. Not special/fancy just simple text.

Did a little Google searching and came across Millwrite so looking for some input from users or any other suggestions.

Boring soft jaws

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I'm having an awful time boring and turning soft jaws. I go through inserts like they're free. Eventually I just finish with a chipped corner. I've tried more rpm and less. More feed and less. I've never had a problem on conventional lathes. What do you guys use for speed and feed for machining soft jaws?
Jordy

Machinability of 7068 vs 7075 or 6061-T6 aluminum

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Hi guys,

Has anyone here had experience with CNC turning of 7068-T6511 aluminum? Particularly in comparison to 7075-T6511 or 6061-T6, how does it compare for hardness or chip breaking ability, smoothness of machined threads, etc.

I have personally found 7075-T6511 to be a bugger for stringing, especially when boring or grooving. 7068 is supposed to be 30% stronger than 7075, but I have never used it before.

Any other tips, speed/feed suggestions, comments or personal opinions appreciated.

Thanks, Dean.

Single point threading M1.4 x .3 , 6061

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I have a job that needs a smallish thread on one end, M1.4 x .3 and need to find an insert that will cut the full profile preferably with a topping shape. We have 3/8" IC holders, but are not opposed to using something else. Anyone with suggestions on an insert or other options for this? This is close to an 80 pitch thread and we might be able to use that but I can't seem to find one.

Problem rigid tapping on cnc lathe with Fanuc 0-T

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I've been trying for some time to get rigid tapping to work on a simple two-axis lathe with a 0-T (not 0iT) control. I had thought rigid tapping worked until I tried using a small tap (so higher spindle RPM). The problem is when the tap reaches depth is when the spindle deaccelerates to a stop and then reverses. Not until the spindle is back up to speed does the z-axis start moving the tap back out of the hole, so no apparent z-axis movement during spindle deccel and accel. At slow RPMs it's hard to notice and I think I can get by but I'd like to figure out what's wrong. The following is what I've been trying to use:

N40 G20G40G99
N50 G28W0.0
N60 T2222
N70 G00 X0.000
N80 Z0.500


N90 M29 S700 M3
N100 G84 Z-0.250 F0.0179
N110 G80

Any insights?

OT: Anyone ever used Gloor tools?

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We just had a meeting with them. A local rep and the freakin' CEO (Yeah, the big cheese himself) flew in from Switzerland to discuss their product lines and capabilities with us. It seems they mostly do custom tools for Swiss machining, but apparently they can make damn near anything. Saw some literature and some demo tools, and they seem pretty neat. Some of their off the shelf stuff would work for us, but I can definitely see some custom tools in our future (I may even get to design some myself, which is neat). They made some pretty big claims about cycle time reductions (mainly with regard to their custom slitting saws, and they provided customer case studies to back them up).

Website is here.

Disclaimer: I have no affiliation with them, just looking to see if any of you have ever used their stuff, any experiences positive or negative, etc.

Double Vices

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Got a new to me Sharp 2412 and moved my 2 double 6" vices to it, since this will be my production machine. Had to run one of my jobs first op in the Kitamura because it needs 19 tools. I figured it's only 20 pieces , I'll just throw a single vice up on there. What a mistake, I felt like I was tied to the machine with a cycle time of 30 minutes. Kept having to stop what I was doing to change part, Couldn't go in house and have a nice dinner while machine was running. Never again, had some 4" doubles on a sub plate I bought at an auction that will be in service very soon. I love long cycle times, when you are a one man band and 4 machines to run. My Pop and I would just shake our heads when I was younger and we would visit a shop and there in the middle of the table was a 6" Kurt holding 1 part. He gives me a hard time that I'm not palletized, but I don't have the room right now.
Most of my mill work is alum. blocks with 6 sides needing machining and holes that are perfect HMC work. Most orders are 20-50 a month so not what most HMC guys are looking for and I don't have enough change to justify one just yet.
Got to get one though, he always told me if your doing it the same way as last year ,your doing it wrong.
Hope it makes somebody on the fence on spending the money for a couple double vices do it , you wont be sorry.

Maho mh800 will not run - pressing green button does not execute reference point

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Hello all,

I am a brand new member, Located in Australia and I have a MH800C with Philips 432 CNC Controller.

  • MH 800 has been working great 10 years
  • Machine was left to sit for 6 months
  • battery went flat...
  • Lost Constants (Typical)
  • Re Keyed the constants
  • Hydraulics Start Ok
  • Can Jog X, Y and Z
  • CANNOT execute Reference Point Search



I press Enter Three Times but when I press the Green Go Button, Nothing Happens.

  • I have checked the constants and tool info a dozen times
  • I have re keyed all the constants 4 times (I was hoping there was one that was corrupt)



Cannot start or run the machine at all

No system errors, no problems/issues in the display, the green button simply does not start the machine
I can see the green button change from 0-1 in the diagnostics screen, but my machine simply will not start
I would really really appreciate some help here

Thanks In Advance

BIG DMG/MAHO FAN
Scott Bryce
Proformance Motorsport
Australia

Facing 304 stainless

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I am having a very hard time with feeds and speeds on facing 304 stainless.......my stock is 2.25x3 and I'm facing it down from .187 to .135 I have tried several combinations but no luck thus far.....I am using a 2.5 Mitsubishi face mill with 5 indexable inserts. I also have the ability to run flood coolant or airblast..... Any help would be greatly appreciated.....thanks most of my exp is with 4140 1018 and 6061 alum..... Never 304ss and thus far I am not a fan and the machine is cat 40 haas vf2

Vacuum Workholding

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Has anyone had experience with these vacuum chucks? Modular Vacuum Chucks for Vacuum Workholding and Fixturing

Does a Venturi vacuum work sufficiently well? Or should one get a dedicated vacuum pump?

I will be machining Delrin approximately 3" X 4" X 1.5" (h). Features are drilling (0.5" holes), pockets, corner rounding and profiling.

How are you cleaning incoming material?

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I just ordered roughly 1.5 tons of steel flat bar that will come on a pallet and is always really oily when it shows up. The parts that get made from this are almost all using at least 3 sides of the stock material as the finished part, so what we've been doing up to this point is unloading from the pallet and staging on the shop floor. Then it gets put up on stands 4-6 bars at a time and degreased by hand with lacquer thinner and paper towels. We look for, and fix, any scrapes or burrs from shipping damage at this time. Then the cleaned bars get staged on the saw until we have a stack big enough to start cutting.

Have you guys found a better or faster way of dealing with this process?

And a secondary question; Have any of you found chemical resistant gloves that hold up to lacquer thinner for more than 5 minutes, but still allow decent dexterity?

V2xt Executive load failure error code 1

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I have got it to load once or twice But now It won't. I've tried every boot disk off this site and any other on I can find. Also have tried dos 5.0 and 6.2. It's a fdmc unit with 4 aa's battery. they went dead and I replaced them but not wile under power. I had it load 2 or 3 times after that but I tried it a week later with no luck since. The disk that tries the hardest is the dx32 one off this group dl's it runs about 2 pages of code then pops back to a: * It has a 486 motherboard and a hard drive or a c: which I believe is on the communication board in a big slot on the mother*



thanks for any input

losing machine 0

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I have had my CNC router lose its machine home position a couple of times in the last couple of weeks while roughing. The first 2 times the y jumped about 4 inches and the x about 1/2". Then today the z dropped about 3/4" and the x and y were out slightly. I have had to re home the machine and then my WCS was dead on where it was supposed to be. The first 2 times I was taking a fairly heavy cut but today I was not. The machine has Stepper motors not servos and is running ball screws on all axis.

Any ideas what may be causing this? So far I have only lost the one job

It just happened again with the z diving almost 3"while I was typing, trashing a job I was supposed to deliver tomorrow.

MT2 ER40 Chuck with non standard diameter

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Hello guys, I have an Emco Compact 5 SMALL CNC lathe, I need and MT2 ER40 collet holder but the one I found is at its largest part a diameter of 17.75mm while my spindle max diameter is 18.23mm.
Is there any collet holder with a wider arbor? And if not is it possible to "shave" a few mm from the "head" so that I can push it a bit further into the spindle?
Thanks!
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