December 14, 2017, 11:25 am
Hey guys,
I have searched the site with mixed results. I am running four parts in Hastalloy. These parts have 4 1/4-28 tapped holes for about 3/8 of thread going through the parts and six 6-32 blind tapped holes going about 1/4 deep.
I plan on form tapping them and was wondering what you guys do in this material.
I am running a fairly new HAAS VF-2SS with rigid tapping and I can peck tap this. I was planning to go by a standard tap chart 65% thread
How does it handle form tapping ? Do you drill for 65% Per the chart ? How many holes should I do with each tap ? I was thinking about changing it out for each part, the cost of a tap is not anything compared to the mess of a broken one in this material.
Thanks in advance for any help .
Make Chips Boys !
Ron
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December 14, 2017, 5:22 pm
18i
Setting idle while in production.
All lights green and spindle running.
Turret motor simply doesn't see any reason to go anywhere.
Top plate lifts off the coupling
Turret is free to turn by hand - and it spins the motor as well.
But no go.
No alarms anywhere.
Where to look ???
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Think Snow Eh!
Ox
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December 14, 2017, 6:10 pm
Im just looking for the best stepover and strategy for finishing a large flat surface of hardened s7 tool steel... Im plan on roughing most of the material away and leaving .002/.003 finish stock to come in and clean everything up with a .078 7 flute Harvey tool end mill with a .005cr Im wondering what the best step sfm, step over and finish stock would be to achieve a nice surface finish so there is minimal polishing needed... also what would be the best toolpath selection would a traditional pocket toolpath be better or would something like an adaptive or high speed machining strategy be better? My machine is a haas with a 12k spindle.
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December 14, 2017, 7:16 pm
I have a 1905 patent drawing that describes 2 parts similar to a pulley.
I do not have dimensions,but i do have a drawing,was hoping someone could look at the drawing and read the description to mill the parts.
If the initial set of wheels work, then i will need larger sets made.
. The Diameter of the wheel is approx 10 to 12 inches,
. the inside profile (?) (Like where the belt would go ) is a half circle
. the inside profile needs to be without blemish or nicks.
. 1 wheel is slightly wider then the other
. 1 wheel is slightly larger in diameter then the other.
These wheels will be used to form molten glass into spheres.
Thanks in advance
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December 15, 2017, 5:19 am
Hello everyone,
I am a Production Engineer in a company and I have an idea to implement but dont know how to proceed. The company has a lot of programs stored in a folder and the operators use a software based on DOS to search and launch a specific program. I want to divide the programs based on product type and then further branching based on dimensions. Then I want that I have an excel file with a list of all programs and links to their location inside the computer. This is the easy part.
The difficult part for me is to know how to make the excel file send the program from computer to the CNC machine. I want that the operator does not need to search for the program or to go throgh different softwares, just an excel sheet in front of him and raw material which he loads in the chuck and clicks on the file. If anyone could give me a direction it would help a lot.
Thank you guys in advance.
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December 15, 2017, 6:29 am
Hey practical machinists,
I successfully purchased a Brother Speedio S700 following advise from this forum 2 years ago and it has been a really good machine and great experience having it as my first CNC. I am very satisfied with the built quality and performance and the Yukiwa 5ax rotary table has been great too. I purchased a Mori NLX2000SY lathe as our first lathe and it is now time to find a second one. We just got a big order of turning die casting AL parts and running these parts on the Mori would be silly plus the Mori is kinda busy. I'm thinking of investing a new lathe. The part is quite small 2.5 inch diameter and pretty short. It is a turning only part. I'm not trying to invest a machine only for this part, instead I'd like to have a machine that can be a good match with the Mori. I am debating about whether I should look for one with milling function or not.
The Doosan Lynx is my first choice but the mill version one takes 4 months to be here so if I get the Doosan it would be a 2 axis Lynx which can be a good choice and good price.
My Brother vendor has a Genos Okuma L200E-M in their show room for sale so this can be a good choice, too. The machine is about 50% more expensive than the regular Lynx. It has got milling function but power is only half of the Doosan.
My third choice would be a Miyano BNC which is smaller than the two machines mentioned above, with milling function and price is in between the Doosan and the Okuma. Work envelope is limited and does not come with tail stock. It can be a fast machine and good for small parts.
I'm more worried about the philosophy of the investment. Should I only get turning centers for my shop because 2 axis lathe are getting less competitive? Should I get the cheaper 2 axis lathe so I can have the machine paid off faster and if in the future I have parts for it that need to be drilled or milled I just put the parts on the CNC mill adding another operation?
Please give me some suggestion on planning the shop! Thanks a lot!
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December 15, 2017, 10:43 am
I have a older cnc with a tpc2100 control does anyone know a way where I could replace the floppy drive with either some sort of usb hookup not a floppy to usb because thats just as bad as a floppy. Or switch it over to like a CF card reader drive. Just wondering if anyone has done this before.
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December 15, 2017, 12:03 pm
Is there anyone who can do consistently good work? It seems we fight problems way too often. If they're located in the southeastern US that's even better.
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December 15, 2017, 7:07 pm
I bought a used marposs spindle probe system. I am preparing to install. X8.7 is the skip signal address, so says my manuals. Where "physically" is this located? I have searched and cannot find this information.
Thank you,
Steve A
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December 15, 2017, 8:53 pm
Howdy.
Can anyone please tell me if I can move the turret on an okuma lb lathe with an osp 3000 when it's in program mode. At the moment I finish a part and have the turret go to z zero so that I can put a new part in and use a tool as a stop for the origin. The problem is that I have to switch to manual mode to move it down to where the x would interest with the new part and then switch back to program to run the machine. I feel this two button presses too many.
Thank you
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December 16, 2017, 7:31 am
I have a part that needs wrench flats, the flats are behind a turned diameter, maybe .093" deep, so I can't use polar and an end mill to reach them. My machine is a vanilla c-axis mill turn, no Y. I have considered options like mounting a Woodruff key cutter in an er25 and reaching past the shoulder, the reach would be 2-3/8", but that seems like a recipe for a lot of chatter, and slow. I am using all my straight (x-axis) live tool holders to drill and tap other holes, between the turning and milling I've got room for one angled live tool holder(z-axis). My parts are annealed 4140, and I am setting up a few hundred of them. I have a real nice tool guy, he recommended a $1200.00 :( insert slotting mill, eight 3mm wide passes for each flat:eek:,
I am real sure someone out here has a much better solution for this than a woodruff cutter or a $1200.00 slot mill. This is sketch is not to any scale.
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December 16, 2017, 2:02 pm
I am looking at a used CNC router with a Fanuc 180i controller. It is an older heavy duty Komo router. All my work is 3d using HSM toolpaths. I am primarily cutting wood and tooling board but I would likely use this machine for some 3d work on aluminum as well. Because I am cutting wood my feeds are typically pretty fast. Is this controller up to the task? My current router I have to turn down the feed on certain toolpaths to avoid data starving. I would like to get away from this.
The Controller apparently has a front end of Windows Xp. The router manufacturer offers remote diagnostics and support I would be scared to hook any machine with xp up to the net. Can you upgrade the Windows on a Fanuc Contoller?
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December 17, 2017, 11:30 am
anybody know of a marker where if you make a mark on a part it adds .0001" thickness to it. that is instead of shimming between parts just making a mark where the ink thickness is .0001"
.
had a 1 ton part and sitting on 4 supports and probe says one support is .00045" high (.0003" tolerance). i made a sharpie marker mark but didnt seem to do much.
.
i ended up on high support (6 square inches) marking up with a marker and sanding mark off and it took 3 times to get .00045 down to .0002" (100 grit sandpaper)
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i have heard of grinders using a crayon to add thickness instead of shims. just seems a wax crayon would leave a uneven thickness.
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using 2 ea .03mm (.0012") shims on one end of part (.0024") and .001 and .0015" on other end (.0025") gives .0001" difference but sometimes you want to use no shims
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December 17, 2017, 3:04 pm
So I was profiling with a .75 endmill and the retention pin snapped off causing my tool holder to fall out and chunk up the spindle seat in the process.
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I am assuming I was being too aggressive with the cut. In hind sight I should have done it in multiple depths but with less than 1/6 of the endmill diameter engaged I didn't think it would be that big of a deal in 6061. Pretty pissed though as not only is it going to cost me a ton to fix but it cost me a job too.
.....
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December 18, 2017, 1:48 am
Hi guys,
Has anyone experience with Andron 2060 cnc controllers?
I need to reset some settings (tool magazine height) but am locked out.
I've just bought this machine used, there's no info re-password reset in any of the manuals or online.
Cheers
Simon
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December 18, 2017, 3:24 am
Good morning all.
I'm trying to help a guy out with some simple parts he needs setup on his VMC. It is a Matsuura mill with Yasnac i80 controller.
I need basically a step by step for setting up a G54 and measuring tools.
The guy that used to run the machine has fallen ill and can't help so I'm completely new to this machine.
Also, when in MDI I can't seem to get it to run a simple G00 or G01 command either. Do I need to press a button after each x, y, or G-code? Or can I just type it in no spaces or anything as I do on our older Haas machine.
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December 18, 2017, 4:27 am
I have a Rebel V-65 4ft bar loader on a Samsung 2000BSY with Fanuc Oi-TF controller. My problem is that when i use the bar load M151 code the bar loader feed in the bar fine into the machine, after the chuck closes and I return back to the main program to start my program over again the X and Z axis move into position but my spindle does not spin until i take the bar feeder out of automatic mode. Any ideas of what is causing this?
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December 18, 2017, 11:43 am
I have been working to straighten out this machine with a T2 Control.
It has been re-initialized and is up and running with no alarms. The only problem I am having now is that when teaching a tool in X it puts it as a negative number in the command page. It appears that zero is off the part equal to the radius of the taught number. When it runs the program the x axis works backwards. When this happens it moves the tool into the part when it is going back for a second pass on the O.D.. Also when cutting the edge it starts in the center of the bar and moves outward to cut.
It did not have this problem before we had to re-initialized the machine.
How do I reverse the X axis so it works properly?
Dave
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December 19, 2017, 5:57 am
Hi Everyone
I'm hoping someone will be able to help me. We have a Dahlih MCV 760 with a Fanuc 10M controller (old, I know).
The machine has lost it's PMC ladder data and I am really hoping that someone here can help me. We have the normal option parameters on back up but without the ladder, our machine is useless. I have tried the ladder info for the MCV 610 but unfortunately it doesn't work on our machine.
I've tried getting the info from the manufacturers but have not heard anything yet.
Please let me know if there is any other info I can provide.
Thanks.
regards
Dave
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December 19, 2017, 12:56 pm
https://i.imgur.com/17B7vJX.jpg
I'm making about 1500 of these right now. Repeat job. Running on my Speedio S700. 1018 CD steel, 1/4 x 1.0 saw cut to 1.35" long. That is in light blue.
The gray shows a light face to clean up and a fast roughing pass around the periphery. That step is 0.150 deep and I am currently using a 1" 3 flute 11mm size insert sandvik indexable end mill. The corner knocked off the upper left is 1/4" x 45 deg chamfer. At it's point, the widest cut will be about 0.325". The part roughs to .820 wide so only taking .090 off the sides and about .050 on the ends.
Sandvik's inserts are basically saying run it at 875SFM and .004-.007 IPT. I'm running .006 IPT so the result is 3342RPM @ 60 IPM.
To me, this operation screams out indexable end mill like I am using, however in a speedio that seems so damn slow. So my question is this, how would you take that roughing pass? stub end mill? indexable? double speeds and change inserts more often?
Tell me your ideas, I appreciate them all.
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