[Clawsie Machine]

I do a lot of machine with endmills to open up a hole from imperial to metric sizes since I do not have a lot of metric tools. I just recently got a new customer that is mostly metric. No problem, I drill the hole, then open them up with a endmill for the hole and SHCS. Tolerance for these are +-.005" INCH. That's why I do this. Now here's the problem.

I choose an arc, "toolpath", "contour", "chain", pick the arc with CLIMB milling direction. Choose a 1/2" endmill and choose "ramp" for contour type. I usually choose say .05" by depth. This was fine for circular Interpolation. Cutter would just run counter clockwise to depth, and at depth do one more arc to flatten the bottom of the contour.

BUT

Now it will do down the .05" in a Counter clockwise arc, then the next .05" it will run in a CLOCKWISE motion? It will keep going back and forth for the total depth. Just doesn't leave a nice finish as the start point seems to have a different size there? Code goes from "G3" to "G2" back to "G3" and so on? It has never done that till today, so any ideas?

Thanks, John

[SIG]

Sounds like your arc is incomplete or your start pt. and end pt. are not connected.

[cadcam]

Please send or attach your file sample so I can review sounds like you are chaining the wrong way. you do know by what direction you pick were it will cut keeping the tool to the left and CCW being climbing at all times.

[Michael82]

your problem is version 9 .You need to get X2 it has more details on things like this you should get it or at least try the demo @ MastercamX2.com

Best Regard,
Michael82

[cadcam]

I agree that MCX2 would be an improvment but that alone would not fix the issue at hand.

[Clawsie Machine]

I will post the file on Sunday. This is the first time in 10 years that this has happen to me where I thought something was "toggled on"? But I couldn't find anything???

[cadcam]

Sounds good look for it tommorow.

[Clawsie Machine]

OK, sorry for the delay, but here it is:
Parameters are, .020" above part to start, Helical ramp down to -.513
When I choose "ramp", DEPTH clicked Ramp depth .050. That's it.
This is just part of it.
If you like, PM me an email addy, and I will send the MC9 file and data so you can see the whole deal.
Thank, John
:rainfro:

(MSG, 1/2" E'MILL )
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[tobyaxis]

That looks like a major problem. This is what it looks like for those that do not have a back plotter. This if for an Acromatic Control right??

[Clawsie Machine]

Files have been email to Cad-cam.
Toby, your correct about the Acromatic controller. What's a back plotter???

[cadcam]

(What's a back plotter???) Sir go here and review this Editor that backplots this what I us along with Predators Full Varifacation softwares as I sell them to.

Links: http://www.shopfloorautomations.com/cnceditor.php
http://www.shopfloorautomations.com/vcnc.php

[tobyaxis]

Files have been email to Cad-cam.
Toby, your correct about the Acromatic controller. What's a back plotter???

I use Predator Virtual CNC, Predator Editor and NC Plot. My Predator Software is Licensed through BobCAD/CAM and NC Plot through Scott Martinez.

I have to admit that these are extremely valuable tools for back plotting 3 and 4 Axis Mills and 2 Axis Lathes. With a little trickery you can Verify Multi-Tasking Lathes.

Got to love Software

Here aare a few things I am testing in Predator Virual CNC for 4 Axis machining. So far I have not been successful with building a complete CNC Mill but these are some simple parts with STL Fixtures.

You can see more examples on my website at www.axiscncprogramming.com for Predator Virtual CNC, Predator Editor, and NC Plot.

[Clawsie Machine]

Cad-cam, I tried twice but it keeps bouncing the emails back saying there Undeliverable???

[cadcam]

John I got the file and the issue at hand is the geo redraw the dia and repick the chain and it will work fine. did you draw this file or someone else?

If you dont see this let me know and I will get you how I am seeing this.

Cadcam

[Clawsie Machine]

Sorry if you got it twice? I'll go and look at it. I do all my own drawings here and other shops for years, so what I did is just pick the center point, create the arc, dia, 0,0, OK? So don't know what happened.

NEWS FLASH, FOUND IT. IF you zoom in, there is a break in the arc, so therefore it's not a full arc to follow. I dimensioned it, and the arc is 359.79 degrees???? WHY in the world I would lose .22 degrees is beyond me as I wasn't doing anything that would require that type of stuff in the last 6 months?

I just re-drew the arc, and worked fine?????????????? Thank, just DO NOT know why this would happen, but I will know IF it does happen again what I have to do?



I usually use the verify in MasterCam when I'm doing more technical stuff, but in this basic parts, I see no need.

[Clawsie Machine]

Now I just need to figure out the DNC for this machine so I can run big files????

[tobyaxis]

Now I just need to figure out the DNC for this machine so I can run big files????

www.ncplot.com if you want a back plotter plus DNC capabilities at a good price. Mastercam might already have one built in though but if you want to be able to use MC while in DNC mode that could be a problem.

[cadcam]

There is no Backplot of NC code in MC but the there is two diffrent ways of DNC one is using the Cimco editor and it can run while he programs.

John what type of machine are you running?

[Clawsie Machine]

I have a Cinci Arrow 500 with the Vickers Acromatic 2100 controller. I have never used this or seen this controller before I bought the machine. So I haven't strayed to far off the beaten path so to speak with this as I know there is some concerns with the hard drive crashing. So I'm pretty green with this controller as I couldn't see fixing it for something stupid I did. therefore, I just use what I need/know, and if there is anything else that I need to do, I get on-line and ask those who are better on this controller.

As for back-plotting, I just use "verify" or "backplot" from MasterCam as it's been pretty good so far. I have Cimcoe Edit, and how do I go about DNC-ing from there? I can transfer in and out, just haven't tried to DNC? But I do have some files that don't seem to go in to easily? Machine promps me with "can not read file"? It's been in there before, but lately it been happening more and more?
John

[chuy]

Man you did all that in BOBCAD...I heard bobcad sucked...doesn't look like it to me is it easy t o learn? and what about horizontal programming?