http://www.practicalmachinist.com/vb/ Discuss CNC machines, programing, troubleshooting, retrofits. en Sat, 21 Nov 2009 04:54:26 GMT vBulletin 60 http://www.practicalmachinist.com/vb/blueevolution/misc/rss.jpg http://www.practicalmachinist.com/vb/ http://www.practicalmachinist.com/vb/showthread.php?t=192808&goto=newpost Sat, 21 Nov 2009 01:40:46 GMT Helping out a friend who is not internet savy. Lathe: Ecoca PC-1860 built 1-31-2000 Shen-jey Ind Co Has been basically trouble free... Helping out a friend who is not internet savy.

Lathe:
Ecoca PC-1860
built 1-31-2000
Shen-jey Ind Co

Has been basically trouble free until past 3 months.
Now has constant alarms
Servo off
Battery low
Cannot set coordinates
Servo alarm

Dealer/service has worked on unit , now says unit is dead.
Something about a board, if the board is taken out memory is lost forever?

Once during repairs it ran fine for one week, glitch free. As a test they swapped the board they installed at the beginning of the week, alarmed in 5 min. Put the "new" board back in, the new board alarmed in 5 min. Has not worked right since.

Question. Is there some service agency somewhere that knows these lathes? ]]> CNC Machining MwTech Inc http://www.practicalmachinist.com/vb/showthread.php?t=192808 http://www.practicalmachinist.com/vb/showthread.php?t=192780&goto=newpost Fri, 20 Nov 2009 15:53:09 GMT So I just got this Tree Journeyman 325 with the Dynapath controller about 9 months ago. I finally just got it hooked to the power. And thank you... So I just got this Tree Journeyman 325 with the Dynapath controller about 9 months ago. I finally just got it hooked to the power. And thank you for everyones great advise on hooking it up and zeroing it. However, when I went to try and zero it last night the screen started glitching out on me. Turned it on and off several times, once it came up normal then after about 5 seconds it started glitching. Any ideas? Here is video of it in action:

http://www.youtube.com/watch?v=0V_MRWSyPko

http://www.youtube.com/watch?v=JToT-GXjJSA ]]> CNC Machining Chrome Dome http://www.practicalmachinist.com/vb/showthread.php?t=192780 http://www.practicalmachinist.com/vb/showthread.php?t=192779&goto=newpost Fri, 20 Nov 2009 15:52:53 GMT We all know various laws relating to machining stuff, most usually murphy's law, however some of you may have laws relating to CNC stuff

My contribution

#3: Thou shall never own enough tool holders.

Any further ideas for a little list will be welcomed and just maybe we can learn from someone else's mistake before making the same one ourselves. ;)

Boris

Yeah its friday again :cheers: ]]> CNC Machining Boris http://www.practicalmachinist.com/vb/showthread.php?t=192779 http://www.practicalmachinist.com/vb/showthread.php?t=192774&goto=newpost Fri, 20 Nov 2009 14:13:15 GMT I'm cutting and 1/8 wide groove around a boss and the 1/8 groove dia is at the correct size in x but is under size in the y! The boss is correct in size and roundness, so i dont think the ball screws are the problem. If the cutter is dull could it do this? The cutter is 3/8 dia x 1/8 wide with a 5/32 shank. what is the proper depth of cut on 1018 crs? ]]> CNC Machining zosotd http://www.practicalmachinist.com/vb/showthread.php?t=192774 http://www.practicalmachinist.com/vb/showthread.php?t=192766&goto=newpost Fri, 20 Nov 2009 11:46:03 GMT i am starting to get some mist hanging in the air at my shop and with winter coming up i'm really thinking that i need to get this under control as i don't want to breathe it all winter long. i have about 3400 sq and am debating between machine mounted units and one central unit to clean the entire shop. any thought here? ]]> CNC Machining SDConcepts http://www.practicalmachinist.com/vb/showthread.php?t=192766 http://www.practicalmachinist.com/vb/showthread.php?t=192741&goto=newpost Thu, 19 Nov 2009 22:25:42 GMT I've never used any cam software before or even a CNC at that. Now, what is the best (quickest) way to get a fillet on a workpiece using a fancy $100,000 mill mach? using a radius cutter or profiling with a ball mill? ]]> CNC Machining madmachinst http://www.practicalmachinist.com/vb/showthread.php?t=192741 http://www.practicalmachinist.com/vb/showthread.php?t=192731&goto=newpost Thu, 19 Nov 2009 19:43:39 GMT Thought I was set to go with Trim E-906, seems like a real nice full soluble. I had had enough with semi's. They last, but...

Now I am being asked to evaluate Fuchs 761B semi-synthetic coolant. Has anyone used, any thoughts, good, bad, indifferent. We run everything except exotics. Seems to me this fluid may be overkill...

Thanks,
I'm getting tired of flushing out machines... ]]> CNC Machining SIM http://www.practicalmachinist.com/vb/showthread.php?t=192731 http://www.practicalmachinist.com/vb/showthread.php?t=192711&goto=newpost Thu, 19 Nov 2009 12:59:15 GMT I have a CNC CompuMill with a Fagor 8020 controller that I have recently bought. I'm running Rhino 4.0 and RhinoCAM.

I'm having problems with the Horizontal Finishing Operation.

1. While in "roughing operations", the software outputs arcs in XY and the controller/machine runs them perfectly. RhinoCAM does not have the option (in standard version) for the XY arcs while in Finishing Op. (I wish they would have told me this before dropping $1500 for the thing, NOW they tell me I need the $2500 upgrade to do this)

It outputs all the finishing operations in linear moves. The Fagor 8020 seems to NOT read them fluently and makes a jerky line-to-line move in finishing.

Since the memory is only 32K, I'm using WinDNC "Infinite" from the Fagor site to drip feed the controller.

I've had the gurus at RhinoCAM check the program and they've tested it and said it's as good as it gets and that my problem is in the controller.

Is there a fix for this?

Thanks All

Rick ]]> CNC Machining RickFire http://www.practicalmachinist.com/vb/showthread.php?t=192711 http://www.practicalmachinist.com/vb/showthread.php?t=192689&goto=newpost Thu, 19 Nov 2009 00:12:26 GMT We have a part that we are designing that will require a very hard surface for anti-wear properties. Roughly RC62-68. We are considering A2 but... We have a part that we are designing that will require a very hard surface for anti-wear properties. Roughly RC62-68. We are considering A2 but never machined the stuff. Just curious how it runs. We run a lot of 4140HT and 17-4PH and the annealed hardness is less but that does not mean easier sometimes.

We are also looking at an 817M40 which I personally know nothing about and not sure if that is considered a tool steel or not. I guess we are looking for an alloy with very high hardness ability, good machining properties when annealed, and very abundant in sizes. ]]> CNC Machining viper http://www.practicalmachinist.com/vb/showthread.php?t=192689 http://www.practicalmachinist.com/vb/showthread.php?t=192688&goto=newpost Wed, 18 Nov 2009 23:58:29 GMT So tonight the monitor on the 1994 Haas would not light. I have seen it flicker a couple times recently but it always stayed on. Now nada. ... So tonight the monitor on the 1994 Haas would not light.

I have seen it flicker a couple times recently but it always stayed on.

Now nada.

So I get diggin in and find that the voltage at the plug for the monitor is 80V DC according to my meter. I confer with the manual and it states 115V AC.

So I grab a lead cord and sure enough the monitor works just fine.:)

Glad it was too late to order a new one.:willy_nilly:

Soooo. The $64 ??. Where could this odd voltage come from and how?:confused:

I checked my voltage on the outgoing side of the transformer and it is 119-120 leg to leg. A touch high but not much.


I am no electron genius. Any pointers would be helpful.

ARB ]]> CNC Machining ARB http://www.practicalmachinist.com/vb/showthread.php?t=192688 http://www.practicalmachinist.com/vb/showthread.php?t=192663&goto=newpost Wed, 18 Nov 2009 16:35:55 GMT Hey all Would like to personally invite all of the north east members to sign up for a little lunch and learn we are doing at Methods on multitask... Hey all

Would like to personally invite all of the north east members to sign up for a little lunch and learn we are doing at Methods on multitask machines, setup and a few new product launches. Its a one day event, and if you not sat in on on of our tech seminars, I would highly recommend coming. We will have a lunch layout as well as the latest Nakamura Lathes with turn mill capability on the floor, as well and the usual mix of Kiwa, Matsuura, Robodrill and EDM products for you to check out while you are here. Registration info is attached below. How to see some of you guys there.

http://www.methodsmachine.com/_asset...ng_Seminar.pdf

www.methodsmachine.com

Thanks!
Scott
MMT ]]> CNC Machining vmcman http://www.practicalmachinist.com/vb/showthread.php?t=192663 http://www.practicalmachinist.com/vb/showthread.php?t=192656&goto=newpost Wed, 18 Nov 2009 15:21:44 GMT I'm about to be machining a 3.760-16 american buttress thread with the 45deg clearance flank leading and I dont have a gage for it. Do I use the standard method of measurement over wires to check the pitch diameter? or do I have to do something else? This is my first time doing a buttress thread. ]]> CNC Machining DADDYRUSS1 http://www.practicalmachinist.com/vb/showthread.php?t=192656 http://www.practicalmachinist.com/vb/showthread.php?t=192646&goto=newpost Wed, 18 Nov 2009 11:34:03 GMT I have some parts I need to purchase and ship to one of my customers, that require nothing more than obtaining pricing from the OEM, receive in the... I have some parts I need to purchase and ship to one of my customers, that require nothing more than obtaining pricing from the OEM, receive in the parts, repackage and ship to my customer. By repackaging I simply mean, put in another box and attach a label (100,000 parts plus).

I have three qty.'s to quote and from the low end to the high, it will cost me between $5K - $12K just to get the parts into my shop.

My question is, what is an acceptable industry standard to mark up these parts?

My time and labor (send out RFQ and repack and ship) will amount to approx. one/two hours.

For materials I usually mark up 20%. Subcontracted services 25%. Misc. fasteners and such for small assemblies 25%, but in this case it's a substantial qty, and substantial amount of money.

What would you do, and what percentage would you tag on?

By the way, this is for our biggest customer, so getting payment is not an issue, they are like clockwork with that.

I am more concerned with being thought too greedy should my pricing be felt inappropriate by that customer, but on the other hand, I don't want to sell myself short either, ;) so looking for advice from those of you who deal with this on a regular basis.

Best Regards,
Russ ]]> CNC Machining wrustle http://www.practicalmachinist.com/vb/showthread.php?t=192646 http://www.practicalmachinist.com/vb/showthread.php?t=192633&goto=newpost Wed, 18 Nov 2009 00:59:36 GMT I got a quote for adding a 4th axis to my Kitamura with a Fanuc 0Mc control. It seemed high to me, but I am curious as to what others have... I got a quote for adding a 4th axis to my Kitamura with a Fanuc 0Mc control. It seemed high to me, but I am curious as to what others have experienced. It was for a 10" rotary table with servo control and brake installed for 20K. High or not? If high what are alternate sources? ]]> CNC Machining Bruce Griffing http://www.practicalmachinist.com/vb/showthread.php?t=192633 http://www.practicalmachinist.com/vb/showthread.php?t=192627&goto=newpost Wed, 18 Nov 2009 00:23:25 GMT I guess they save a bit on advert costs by leaving out the O and the E in the name..??? Anyway.....anybody have one these out there? I have not... I guess they save a bit on advert costs by leaving out the O and the E in the name..???

Anyway.....anybody have one these out there?
I have not seen any used machines on Ebay and have never seen a 'control only' for sale anywhere.....

Curious.....if there are many around...

dk ]]> CNC Machining dkmc http://www.practicalmachinist.com/vb/showthread.php?t=192627