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Messages - jevs

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301
General Mach Discussion / Re: How to wire and run automatic oiler?
« on: March 22, 2011, 10:40:50 PM »
I have mine running when the drives are enabled and I think that is the way most industriial machines have them wired.
Hood

So it is oiling anytime the machine is on even if it is idle? I would prefer mine to just run when it is in motion and really only if the X and Y are moving I would think?

302
General Mach Discussion / Re: How to wire and run automatic oiler?
« on: March 22, 2011, 05:04:57 PM »
Just look at this topic.


http://www.machsupport.com/forum/index.php/topic,5208.0.html



Jeff

I looked at this link before posting, but that seems to be a different setup that must be manually triggered every so often, whereas I believe mine should just be on anytime the x or y is moving?

303
General Mach Discussion / Re: How to wire and run automatic oiler?
« on: March 22, 2011, 05:02:53 PM »
I just called the company. They say that every 15 minutes it puts out 2.5cc. In otherwords it times itself, so turning it on is all that is required. So i guess I just need for it to turn on the relay whenever my x or y is moving. I think it should be turned on even when you job the x and y in case your manually milling something, what do you guys think?

304
General Mach Discussion / How to wire and run automatic oiler?
« on: March 22, 2011, 04:02:02 PM »

I am trying to figure out how to hook up my CNC machines auto oiler for the bed ways and set it up in Mach 3. I assume this style is designed to run anytime the x and y axis is moving? See picture attached. I already have it wired to a relay that puts 115VAC to it when the relay is on, so I just need to know which connecter to use on the machmotion breakout board to turn on the relay and how to set it up so it works like it is supposed to. I don't think there is any plumbing to the Z-axis. The Z axis has grease fittings to lubricate it manually, so I assume this only needs to work when the x and y axis move? I think it should be on anytime the x and y move, even if your manually jogging? I dont think this is a timed one shot oiler? I believe it slowly oozes oil on anytime the machine runs?

Specs off the side:
Interval 15mins
Discharge 2.5CC

Thanks

305
General Mach Discussion / Re: Should I run Windows 7 or XP?
« on: February 06, 2011, 11:30:10 AM »
By the way, it would run BobCAD when it was 256Meg of ram, 2.4 gig celeron D, and using the onboard video. I am actually waiting for the parts to upgrade it to the specs I listed at the beginning. So, I don't anticipate there being any problem there. My main concern is a stable Mach 3.

306
General Mach Discussion / Re: Should I run Windows 7 or XP?
« on: February 06, 2011, 11:28:24 AM »
This will be dedicated to the machine. In fact the computer will be in the machine. I just want to be able to open and use BobCad if needed, not for it's main use. I will do my main CAD and CAM stuff on another computer.

The reason I ask about service pack 3 is because this computer does not work well unless I get all the updates. For some reason there is something it does not like about SP2, or rather it may be one of the updates you only get after loading SP3. Anyway, it works perfectly when all the updates are applied. 

So, if SP3 is a problem, maybe I better put a bigger hard drive in and rin windows 7?

I already own XP for this machine though, I would have to buy Win 7.

307
General Mach Discussion / Should I run Windows 7 or XP?
« on: February 05, 2011, 11:36:01 PM »
Pentium 4 3.06GHz
1 Gig Ram
40 Gig HD
256 MB AGP Video Card

Should I run Windows 7 32-bit or Windows XP?

Is there going to be a problem with using service pack 3 if I use XP?

I want to be able to run BobCAD-CAM as well.




308
After talking with Carl at Machmotion, this is how we decided the machine should be wired.

X Limit Switch to 1-11
Y Limit Switch to 1-12
Z  Limit Switches (already in series) to 1-13
Z Home Switch to 1-15
Tool change area switch to 2-10
Tool change zero switch to 2-11

X and Y will just use the limits and not hook up homes
Z will have limits on the Z limit input
Z home will be on a seperate input so it can be used as a home to the "machining area"
Tool change area switch can be used in the macro for?? May not need, or may use as a safety or something (will decide this later, but it will be on an input if needed)
Tool change zero will be hooked to an input so that it can be used in the tool change macro to stop the tool change operation and then reverse the travel to finish the tool change and go back to home.

See any issues with this? It all makes good sense to me I think

Thanks

309
Quote
Yes, the benefit of that is you can have the home switches at any position and Mach will only pay attention to them if you are actually homing. This on a lot of machines is not needed but on large machines it may save time as you could have the switch positioned closer to your normal working area. Another time when it is handy is on a lathe similar to mine, first the Z is 1.5M long so dont really want to have to travel to the end of the axis each time I home, the X on my lathe has a front and rear turret so I dont want either to have to travel across the centre line whilst homing so the home switch is positioned so that the two turrets are equidistant from the centre line."

Can I use inputs for these home switches besides the 3 that I am using for the limits? I like the idea of sticking to the original switch configuration as much as possibe.

Also. the home switches will make the tool at the back right of the table (see attached Excel sheet), is this a normal home position for a modern machine? It seems like everything would be moving in the negative direction from that point during operation? I know nothing about this as I have not had a CNC or even a DRO on my little "toy" mill.

310
Oh and regards the Home switches, you need some means of referencing the machine, either via accurate home switches or if your drives support it Index homing in the drives. Some drives can also set home with a motor current value, in other words you drive the axis against a stop and if it reaches a set current the drive stops the motor and sets the home position, this however would be tricky as you would have to have the stop positioned before the limits so not really an option if you have limits.

Other option is if you can accurately position the axis (align marks etc) then you can just tell Mach it is home, but obviously it will only be as accurate as your manual positioning is.
Hood
I thought I read somewhere that to set home, you hit the limit and then back it off just a tad and tell the machine that is home? This is just from memory...

Can I use seperate inputs and tell mach they are home switches and not limits?

Another option I guess I could do is hook LEDs to the original home switches and just run the motor up slow until the LED comes on and tell mach that is home. I could just put LED's on the panel permanently for this indication in order to "recalibrate" periodically. Any need for this?

I am sure I may be asking some dumb questions, but I am trying to educate myself ahead of time. This may be more clear to me as I actually get the machine working. Right now I am just waiting on parts and preparing.

I am going to call Machmotion and see what they recommend today.

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