lathe job: bar feeding parts 3/4-10 thread, able to chamfer both sides?

March 21, 2017, 7:58 am

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As the title states, lathe job we are bar feeding. Part is 1 5/8 dia. .656 long with a 3/4-10 I.D. thread. Samsung sl 20 lathe. We do roughly 5000 parts a year.

Currently, we turn o.d., .656 insert drill, chamfer front side with boring bar, single point thread, cut off.

So the back side of the part needs a chamfer that we do in a drill press. Is there any good way of doing this in the machine? Are my options pretty much a small grooving bar or boring bar? Something to get the front chamfer and back with same tool would be ideal. If I get both sides chamferd will there be a burr still from parting it off? Is it worth the hassle? If part takes an extra 15 seconds in order to come off complete I would be happy. Thoughts?

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Kitamura Mycenter 0 lube and air requirements?

March 21, 2017, 10:07 am

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I have aquired an older Kitamura. It is grease lubed. Any recommendations on the type of grease required. Also, how much air (sfm) does this thing need? I could find no mention of either in the documentation that accompanied the machine.

Fanuc programming

March 21, 2017, 10:16 am

≫ Next: Ot: Looking for silkcreening vendor in Northeast

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We have numerous CNC lathes that can run the following code:
G0 X50. Z2.
G1 Z0
X55. A135. R1.

We recently acquired a Goodway with an oitd control that does not accept this method. Any ideas on which parameters could rectify this problem?

Paul

Ot: Looking for silkcreening vendor in Northeast

March 21, 2017, 11:15 am

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As the title states, looking for a reliable quality silk screening vendor in the Northeast region of the US.

We have several clear anodized aluminum parts that we regularly have the customers logo silkscreened onto them.

We've been doing this for several years with an outfit just outside of Boston.

The problem is.........it seems almost every other time we send in parts, they are scrapping one due to carelessness.

Now.....if it was only a small dollar part, a couple bucks or so a piece, it's not that big a deal, but we're talking $35.00 to $59.00 parts and I'm getting sick and tired of having to always fight city hall to get credit for the parts they scrap.

The last one was a real beauty!

Sent in 30pcs for silkscreening. They contact me 10 days later to tell me one of the parts was damaged.........AND it was found that way received in the box!

YUP, we machined it, polished it on every surface, put a big crease in the very front edge right where the customers logo goes, and then sent it along to be processed!


To make matters even better.....yes, "better".......we get the parts the next day (funny the day it's shipping back to us, they notice the damaged part.....AND.....they received it that way), and the part marked up that was supposedly found that way in the box......was completely anodized, and silkscreened, and the damaged area was right above the silkscreened logo. The damage was a thin walled area of the part that looked like someone put a chisel onto it and gave it a smack with a hammer, causing a deep crevice into the part.

The more likely scenario was, it probably fell off the rack going into the tank and hit the edge of the tank causing the damage, and no one was willing to admit fault.


Anyways.........believe it or not, after several back and forth emails, I am...........once again........being credited for the scrap part, but my sole mission in life right now,..........is to find another vendor for this process.


So, if anyone knows of a good quality vendor for this service, (I would really prefer the Northeast just to save on shipping lead times, one day out, one day back.....plus processing time) I would really appreciate it.

Later,
Russ

Opinion on Kitamura Mycenter 3xd

March 21, 2017, 11:39 am

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I'm looking at buying my first brand new VMC in the next couple weeks and the Kitamura Mycenter 3XD seems to fit what I need to perfection and the price is right. For piece of mind I priced out a Haas VF2 to compare and after I optioned it out it only came a few thousand under the Kitamura . I'm just wondering if anyone out there has one or has run one or seen one and what their opinion is on it or something close. I know its a Taiwan made machine and I'm not worried about that. 30x20x20 travels, 12000rpm big plus spindle, Crazy rapids compared to my old VF2.
Jordy

Opinions for fanuc 6Ta lathe - BTR or custom cable?

March 21, 2017, 7:42 pm

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Well, me being a cheap prick dont want to spend $1200 on btr for a machine a paid less that that for...

I want to be able to send programs from my cam software to the control, and punch parameters, etc back out if I can.

Unless I can find a reasonably priced btr (can I drip feed with one of these?), im likely just going to make my own serial cable to plug into the 20 pin honda connector on the pc\puncher card.
I dont think Ill be able to drip feed using my cable method, but ill at least be able to transfer programs.

Opinions?

Hurco BMC 2416 ATC

March 21, 2017, 7:46 pm

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I have a 1998 Hurco BMC 2416 the ATC loader arm slipped down during shipping. Now I can't do anything with the machince because the machine won't calibrate the axes and the axes won't calibrate without the ATC loader in the home position does anyone know how I can manually reset the ATC loader arm.

Fadal tool changer stuck, how to release?

March 21, 2017, 9:39 pm

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OK, It's my own fault.
In and out of the shop several times, had issues getting the program to transfer, forgot to hook up the air.
Started the program and of course it wanted to select the first tool.
Got part way through the change but could not complete it.
$#!*!!!!, hook up air.
Tool carousel is extended and I cannot get it to go back.
Seems there should be a manual release?

TC,1 does not work, in fact it makes it worse since the carousel is out of position so then the spindle comes down on it.
Then the umbrella tries to rotate.

Gave up and shut it off before I make it worse.

Help please!

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Tap hole positional tolerance?

March 21, 2017, 11:22 pm

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Is it possible to machine a M5 tap hole with the center positional tolerance +/-0.001"? If yes, how to measure the tap hole is located within tolerance?

Bar feeder reverse ?

March 22, 2017, 2:03 am

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I just got a LNS Servo Quick Load 65-80 for my Mazak lathe. This bar feeder is used and did not come with any manuals.
The first thing I need to fix, is to reverse the whole thing. Either it has been sitting on the counterspindle of a lathe or it has been reversed so the front side of it has been at the back of the lathe. Either way I need to change it around so everything faces the same way. Is it just a matter of taking (almost) all the internals out and putting them in the other way ? It looks like it is possible.
Secondly I very much need a manual, as all the wires has been disconnected inside the electrical cabinet.
I will try to keep the thread updated until I get it working.

how to protect wrong tool picking (accident prevention).

March 22, 2017, 5:10 am

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Dear All

I want your help.
Sometimes machines (VMCs & HMCs) in my shop pick up wrong tools.
Is there any way to prevent to accident if wrong tool is picked?
Like by using any custom macro to verify actual spindle tool & tool called by program.
I am using FANUC OiMD.

Is there any way to do this?

Tim Markoski

March 22, 2017, 6:14 am

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I had a report of Tim's untimely death yesterday and confirmed this morning that he had in fact passed.
I knew Tim and can say that he was a "personality", inhabiting the manufacturing world for nearly three decades.
He contributed in many ways to the success of a great number of companies, small and large.
He was also a pretty down to earth guy who'd give a friend the shirt off his back.

Rest in Peace Tim

Multifeed ML1 bar feeder programming on hit8s sinumeric840c

March 22, 2017, 9:47 am

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Hi.
I'm running a Hyundai Hit 8s with 840c software, linked to hyrafeed Multifeed ML1 short magazine bar feeder. I found old programs for the bar feed, a subprogram for loading new bar, but it gets stuck loading new bar to this lathe. It will run the whole bar till it ejects last 50mm, move across, push new bar into the spindle, and that's it. It doesn't retract to move over for the push rod. Below are screenshots of my progs.


Any hints much appreciated.
Regards
Tom

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WANTED: Machine Shop Sales Representative

March 22, 2017, 11:42 am

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We are a family owned machine shop in Corona, California with 25+ years experience looking to expand our lines of business. We are looking to hire a Commission Paid Sales Rep to bring in new opportunities. Potential to make $100,000+ annually entirely dependent on you. Can work from home, however many hours you prefer. Please e-mail engineeringbj@gmail.com for all questions and concerns.

Deckel FP5CC/T Manual PDF

March 22, 2017, 12:08 pm

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Hi guys, i have recently purchased a Deckel FP5CC/T but do not have a manual to guide me. Does anyone have a PDF copy to help me. When i started the machine i kept on getting error code 2302 Emergency Stop and dont know what it means or how to get rid.

Thanks

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Spot drill included angles?

March 22, 2017, 12:09 pm

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I'm using an MA Ford series 229 drill in aluminum. MA Ford says I need to spot drill prior to drilling and since the drill has a 150 degree included tip, I should use a spot drill in the 155 to 170 degree range. They then immediately said, we don't have a tool like that.
Great, so here is a good drill that you should use for drilling, but you have to spot it but we can't sell you the spot drill. WTF?

It seems spot drills go 145, 150 and 170 angle. Is a 170 degree spot drill very good for self centering itself? That is damn near flat.

Where can I get a freakin 160 spot drill?

Thanks
Jon

G10 type programming help

March 22, 2017, 1:07 pm

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I am just wondering if I am doing it right or is there a better way to program for multiple offsets without using separate fixture offsets for each position. Application is when the parts are in constant positions relative to each other, like when nesting parts out of a sheet of material on the vacuum chuck. Contols are Yasnac, a J50 and a J300.

Below is how I have programmed for engraving 8 parts.

O1(ENGRAVE PT HOLDERS)
G0 G17 G40 G49 G53 G80 G90 X-10. Y0 Z0
G52
G92X3.332Y5.9522 ( Set the coordinates to a known position on the fixture)
G10Q2P6X-3.175Y.6
T7 M6(ENGRAVER)
G0 G43 X-.0466 Y.423 Z.1 H7 G59 S15000 M3
M8
M98P8G59
G10Q2P6Y-.6
M98P8G59
G10Q2P6Y-1.8
M98P8G59
G10Q2P6Y-3.
M98P8G59
G10Q2P6X3.175
M98P8G59
G10Q2P6Y-1.8
M98P8G59
G10Q2P6Y-.6
M98P8G59
G10Q2P6Y.6
M98P8G59
M9
M5
G10Q2P6X0Y0
G0 G49 G53 X-10. Y0 Z0
G52
M2

machine upgrades?

March 22, 2017, 2:32 pm

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Hey guys,

I'm looking to upgrade some of my machinery (all part of my long term plan to get my business set up with the capability I want to have, before leaving my day job) and I'm looking for recommendations of what to look for, and if anyone knows of anything around.

I currently have a mid 80's mazak VQC20/40a, a mid 80's QT10n and a mid 90's goodway bar fed twin spindle lathe (very small capacity, but magazine loads 4m bars)

I think my best bet would be to first upgrade my VMC, and keep the VQC because at this stage if it goes down I'm without milling capabilities. Ideally I would like something with much more spindle speed (vqc is maxed at 4krpm... which it almost lives at) and definitely more controller speed. (I have to constantly up my smoothing in my CAM package to output less moves to limit the amount of pausing for contemplation that the controller has to do, I also have to drip feed a lot of what I do, due to program size limitations) Not too fussed if its horizontal or vertical both would have advantages and disadvantages for me.

On the lathe side of things, I think the best upgrade I could do would be to get more capability as far as getting something with a slightly larger bore than the QT10, and sith live tooling (y axis would be great, but isn't the easiest option to find on the second hand market.)

My theoretical budget would be $30k for each (so 60k total) on the lathe side I would also very much prefer Mazak for its mazatrol, but not too fussed on the milling side.

Any advise to offer up? should I consider going into more debt and looking at new machines? is there somewhere I should be keeping an eye on that I currently am not (grays, dovebid, machines4u, ebay, gumtree...)

cheers,
Trav

Fanuc 21i-TB controller problem. Femco BMC-110R2

March 22, 2017, 2:39 pm

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The shop has just installed a (very) used Femco BMC-110R2 horizontal mill. There a few problems to sort out before it becomes operational. The first I am dealing with is the controller. There are areas that have the lettering on dials worn off. I tried to find a good picture of the lettering online, but all the the pictures are low quality. I need a good picture or diagram of the controller. I have enclosed pictures of the controller and areas of detail I need. Thank you.

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Operation Order for maching a part feature

March 22, 2017, 2:45 pm

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I've got the part below I will be making soon. It is a planet carrier. The overall width is 1.5", material 6061 or 7075, pocket width 1.030", pin hole .375". My question is regarding the gear pin hole and gear pocket. Would you drill and ream the hole all the way through, then machine the gear pocket? Or vice versa? I'm leaning towards the first method because of the machine it will have to be made on and how I have to hold the part. I don't have coordinate rotation, so getting the pockets aligned properly after machining to then drill the holes would be a nightmare in my feeble mind. I'm also worried about the drill and reamer walking between holes.

Opinions based on practical experience would be appreciated.

Jay

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