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Mitsubishi m70 - Start program.

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How do you do it in cnc when we have a complete program and just want to machine from a certain tool?

Enviado do meu MI 6 através de Tapatalk

Shop full of 'dead' CNC equipment

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I work for a strange company, and one thing that puzzles me is that they have a number of CNC machines that I've been told are 'dead'. The story goes that they've been disconnected from power for so long that the memory batteries are gone, the parameters lost, and the cost to restore them is more than the machines are worth. I have no idea if any of this is true, but it's frustrating to see all that equipment gathering dust while I get by with manual machines and one Kent CNC bed mill. Here's what we have:

Acra VMC, model FVMC-1020E with a Mitsubishi control. It does power up, but I can't get it to move or do anything. Appearance-wise, it looks like it's had very little usage, as all the machines look.

Kiaturn 15 turning center. LG-Yasnac control. Not even connected to power.

Charmilles Roboform 40 EDM. Again, spotless condition. Tool changer and tons of 3R tooling. Appears to be connected to power, but does nothing at all when you try to turn it on- no relays kicking in or anything.

Sodick Mark 25 WEDM. Also doesn't power up at all, but appears to have power.

Shigiya GPS-30 ID/OD grinder. Fanuc 0i-TB control. Looks virtually brand new. I haven't messed with this one at all.

The only functional EDM we have is one of those crappy Taiwanese 'Charmilles' that weren't worth the bother when they were new.

As I said- it's a strange place. We have 12 guys in the tool room working on molds, but all we do is preventive maintenance and some minor repairs. They spend tens of thousands per month on replacement tooling that we could be making in-house. I've been told that our people 'don't have the skills', when I know that at least 6 of us do have the skills and experience. I have 40 years experience designing and building molds, but they just have me doing grunt work. They are using about 20% of my potential. For some reason, management HATES the tool room. I've never experienced such contempt, and I've worked in a lot of shops over the years. I would leave, but it's close to the house, and I'm close to retirement, so I'm trying to ride it out for a few more years. I worked my way into making parts for their specialized assembly equipment, so I'm reasonably happy.

Back to the original topic- Are these machines really worth nothing? I asked why they don't sell them, as the shop is very jumbled and crowded. Apparently, they've used them as collateral for borrowing money, so they can't sell them. BTW- This isn't a small Mom-N-Pop; we have over 200 employees and do over $15 million a year.

New Machine Day!

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Technically it was Dec. 22, my “scheduled” start of vaca lol. Machine is a Nomura NN32-YB2 XB. Yesterday I started my training and getting the machine ready for a run-off. Have quite a ways to go on both skill and tooling, but that’s the fun part!

This will be cutting 8620 for most of its life. Attached are pics of a few parts made so far. They’re two of many in the family. Pretty complicated, especially dropping off complete. Even with 10 axes, I still need to secondary one feature on a few part numbers. A few of you will probably be familiar with the parts :)

I’ll get some better pictures up later, along with video!

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Arc Parallel to WX Plane

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We have a very frustrating problem with our Giddings and Lewis RT1250 Horizontal Borer.

We recently fitted this with a Right Angled Head to increase it`s capabilities however are finding it impossible to carry out simple G2 / G3 commands due to the G18 plane switching to XZ, on this machine the Z axis is the Spindle which when the RAH is fitted is locked in position.

Is there another plane command that will allow me to interpolate on XW (W axis is the Column)

We are working round this by programming arcs as a series of small linear movements but this does not help our operators when they need to do quick programs at the control.

Any help greatly appreciated

Cincinnati-Gilbert HBM experiences ?

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Anyone run one of these ? 4" or 5" size ? We have a guy who is interested in one, any real-world experience ? Speculation is not a help and we don't want a Doosan, thank you.

Turning and drill Aermet 100

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I have a job coming up that’s Aermet 100 has anyone worked with this before? Just looking for some feeds and speeds on drilling it and turning it?

Another 'My First (V)MC' Thread...

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Hi all,

So I'm wanting to get into CNC machining. I've been around machines most of my life (had a hobby lathe in my bedroom from the age of 10...) but never run a CNC machine. Anyhow, the itch is getting stronger so I'd like to pick your collective brains on just how daft my ideas are, amongst other things...

I'm located in the UK, so it seems like a lot of the threads about guidance on getting a machine that I've read here don't quite add up for me (prices, sources, common machines & controls, etc).

My budget is essentially 'as little as possible', but I don't want to waste my time and/or money buying something that will be constant hassle. I've spent enough of my life swearing at terrible quality and laughably under-powered machines already. I'm starting from zero in terms of workshop setup, though I do currently have access to a handful of manual machines in my current job, so I basically need the lot. I can figure out compressor etc etc etc - my main knowledge/experience void is the machining centre itself, and assosciated tooling.

I should mention at this point that another pipe-dream for me is to make some rather large aluminium components, up to almost 1000mm long x 500mm wide (x <100mm thick). These would be heavily machined, starting with a full billet and ending up with only 1 - 2kg. My other plans involve some fairly general job shop work, possibly including some tooling/fixture parts which might need to be decently accurate. Most of the time I'd be machining aluminium or mild or 303-ish stainless, and I wouldn't be expecting to hold microns from the start.

I'd like to be able to program manually for simple parts, but I'll definitely need to use CAM for complex parts, so a control capable of both (even if I need to drip-feed code) is needed.

Of course I'm looking at used machines, since my budget for the machine itself really maxxes out at £15k inc. taxes (£10k or less would be much easier). I've been looking around eBay (not much on offer in the UK nowadays seemingly?), and a bunch of asset disposal/auction websites. I've come across a few mid-late 90's Haas VF0 - VF2 machines, as well as a few Hurco BMC's of similar vintage. There's currently a 2000 Mazak VTC-200B up for auction within budget, which I think could be an amazing machine to own. I've also spotted a slightly suspect 2007 Haas VF4 up for auction. My thoughts on them are as follows:

Haas VF0 - VF2 machines:
Pros:
- Cheap and plentiful
- Plenty of support/guidance online
- Intuitive control
Cons:
- Potentially not much life left in a 20 year old machine
- Not '20hp'
- Too small to make my large components

Hurco BMC30 etc:
- Decent price, not rare
- Apparently excellent control (I haven't researched it much yet though)
- Generally decent machine, more rigid and durable than a similar Haas
Cons:
- Too small to make my large components

This one Mazak VTC-200B that I can potentially afford:
Pros:
- Mazak quality/power/longevity
- Big enough for my large project
- Good control when you understand it? (Mazatrol 640M)
Cons:
- More expensive repairs than the above
- Less support/guidance due to being less common than the above

Suspect 2007 Haas VF4 that I can potentially afford:
Pros:
- Plentiful
- Plenty support etc
- Simple Haas control
- Large enough for my large project
Cons:
- Part of the Z way cover missing
- Looks like it may have had a hard life in the photos

What are your thoughts on these machines, at a glance, please? Any that I should outright avoid for reasons I'm not aware of yet? And do you have any other recommendations or even sources for used machines?

I suppose I'd be wise to only go for the cheapest functional machine really, since I have a lot of other risks and unknowns (and £10k is a years wages for me :D)...so I suppose that's the smaller Haas offerings, or Hurco equivalent.

I've also thought about older machines like the Mori MV-JR, but can't find any up for grabs right now on the island.

Assuming I do pick up a machine with a CAT/BT 40 spindle, how much should I budget to get set up with a small collection of essential holders and cutters to get me going? And should I try and pick up a tool setter from the start?

Sorry for the excessively rambling post. I'm sure I'll have plenty more questions to follow too.

Thanks in advance for your time, experiences and opinions :)

Tam

Chuck balancing

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I have a flywheel I am turning in a cnc lathe. It has a huge counterbalancer on one side. Is there a way to balance this so I can spin the part faster ?

Hairy Knurls

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Good day,

I am operating a Profiroll machine that we use to put a 5x6 knurl on a shaft diameter. the pre-knurl diameter of the shaft is 5.33mm and knurl diameter is 5.65mm once machined. I am not sure if any other information would be needed to answe the upcoming question as I am new to the CNC world.

The problem we are having is some of these knurls are coming out all hairy. Even though the go gage fits on and the nogo does not, this is still an issue as our customer would reject them. We have made sure the 2 dies are lined up correctly, made minor adjustments to the dies and the angles, tore apart the machine and set it back up etc. with no luck.

Now, we run 4 different parts on this machine. 3 of them have a larger diameter spline than this one (7.39mm pre-spline) with the only difference being the length of the knurl. The other 3 parts do not have this issue.

What are we missing?

Parameter problems TNC150

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Hello.
I'm building a 4th axel to my Tnc 150 mill.
On the other axels there is glas scales for messure.
On the 4th axel i'm using a encoder ROD450 with 5000 puls / rev
But i cant figure oute what parameter to change for the encoder puls

Which DRO kit to buy for a bridgeport mill

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Ours has a dead scale and from the little I googled it looks like I can get a whole new set of scales and readout box for the same price as just one scale.

But I could be wrong. I don't have a lot of education on DRO setups.

I've found $1200 kits, and I've found $350 kits. What's the difference? I'm guessing component quality.

Chevalier CNC mills, anyone running one of these?

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So I am still on the patient hunt for a 40 inch mill, there is a Chevalier QP2040L that is local to me and I am looking for opinions from anyone who has one.

It's a Fanuc control, 40 x 20 with a side mount and TSC, 10K spindle. It's priced reasonably for a Taiwan mill.

The use would be almost exclusively machining aluminum extrusions, so high torque is not required. It just needs to be reliable. I have a Sharp 2412, if it's comparable quality that would be fine for what I need.

I'm mainly wondering if I should be running the other way.

DH-31 steel

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Anyone familiar with machining this material? Having issues face milling. About 20% tool life H13

Why do I keep getting a 386 invalid address format on a Haas CNC Lathe?

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Code:

%
O98441 (CNC LATHE PROGRAM);
G20 G54;
M06 T1 (ROUGHING AND FINISHING OPERATION);
G00 G18 G20 G40 G80 G99 (SAFETY BLOCK);
M03 S509.3 G50 M08 ;
G42 T01 (CUTTER COMP RIGHT);
G96 S5000 (SURFACE FEET AT 300 AND CONSTANT, RPM CAPPED);
G00 X2.5 (This is start point for canned cycle);
G71 D.1 F.015 U.01 W.01 P1 Q1;
N1 (CUTTING);
G01 X.3326 Z1.;
G01 Z0.;
G01 X.375 Z-.0424;
G01 Z-.625;
G01 X.625 Z-.875;
G01 Z-1.875;
G01 X1.3;
G03 X.875 Z-2.65;
G01 Z-2.875;
G01 X1.125;
G70 P1 Q1 F.005 (FINISH PASS CHANGE CUTTING SPEED TO 700 IF FINISH IS BAD);
G53 X0. M09;
G53 Z0. M05;
M30;
%

The issue occurs at the first safety block on line 4. Which makes no sense as the safety block is directly from the operator manual. What may be the issue?

Dooturn 4 Turret refrence return problem

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Hey guys, I have a Doosan Dooturn 4 Lathe. we had a power outage and obviously the backup batteries were dead. so it lost all memory. ive got all the parameters back in the machine now and all works fine but I don't know how to refrence return the turret. it will index manualy but not in MDI. It has a Fanuc series 00 mate controller. I don't have crap for manuals except the ladder any info would be appreciated. thanks!

DMU 60 E retrofit

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Hi. have somebody retrofit such a cnc ? or see it ? or what are the steps after i change the rails and carriers at all axis to do forward? some cheks of the axis ? thank you.

Cnc Swiss question

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Hello,
I’m for some info on a Star Ecas-20. I’ve spent most of my life around Citizen L and M series machines. Although I am somewhat familiar with the Star SR 20.
How does setup and programming compare between the Ecas and the SR 20

Brother A00 Conversational Programming Question

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Hey Guys,

I recently picked up a Brother TC S2A with an A00 Control. The machine came with all the original manuals so I went ahead and began to program the machine in Conversational mode. I like working with Mazak's conversational so I thought I'd give the Brother's conversational a try and it is very straight forward and easy to use. I programmed a simple part today, set up all the machining data, assigned the tools from the Tool Data Bank for the program, and loaded the magazine set up in MDI mode. When I go into Memory mode to run the program nothing happens. The Start Button is not lit up and pressing it does nothing. When in memory mode it asks the program to run and I input the program, it pulls it up, and then I attempt to somehow start it but I'm not sure if I'm missing something. No alarms or anything. Not sure what is going on so I thought I'd ask if anyone has any experience with these controls and the conversational side of the Brother. Am I missing something really simple here? Any help would be greatly appreciated. Thanks!

How would you make these? - OR - RFR don't know what they be doing.

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These are out of my experience zone (the odd angles), and bigger than we usually work with. Equipment available is a CAT40 4 axis Haas VF-2ss. Both parts are 6061. 3D machining is approved for both parts, in any configuration.

Minimum profile radius size for both parts is R.47. Quantities are 40 and 100 with projected monthly usage of about 200 or so.

Alternatively, if any of you high quality shops want to quote, have at it. Seems like a 5 axis might be a good fit, but I don't know nothing 'bout them critters. matt (at) rfrcustomfab (dot) com for models.

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Can someone tell me what type of inserts are these.

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