K2CNC Summary

[Jason Marsha]

I guess it depends on how you view the machine, for example I based my axes on viewing the machine from the shortest axis and comparing that to drawing the axes on graph paper, then my X-axis would be the shortest moving left to right along with the Z-axis and my Y-axis would be moving backwards and forwards. Is there any particular reason that the Z-axis moves along the Y-axis and the Y-axis moves along the X-axis.

Jason

[ger21]

Just that X is usually the longest axis. You can call them whatever you want, it only gets confusing when two people have them named differently and are trying to understand what the other is talking about.

[tauscnc]

Ok, I am not crazy Jason, I have it like yours too. What confused me was I was looking at X axis as the longest movement (39") and the Y as the 25" (based on 3925 machine) but my Mach 3 setting where backwards. I left it because it worked but then I looked at my Sherline and it is the same way. The X move left and right the Y moves front and back.

I guess as long as it works who cares

taus

[Jason Marsha]

Well its settled, it works because it works.

Jason

[Cutloose]

Hey.....I care! You guys are confusing the Sh!t out of me! LOL!

[tauscnc]

Alright, now you guys got me all dis-come-ba-be-u-la-ted. Wow thats a tough word to spell.

Here is a pic of the Sherline and K2 and how the axis are. If I look at my CAD program they are this way too. Are we talking about the same thing?

[IMG][/IMG]
In the Sherline case the X axis is the longest axis.

[IMG][/IMG]
In the K2 case the Y axis is the longest axis.

Now this works in my CAD and on the machine. Is this not right?

Thanks
taus

[ger21]

In the K2 case the Y axis is the longest axis.

Now this works in my CAD and on the machine. Is this not right?

Thanks
taus

It'll work in your CAD either way. It's just a matter of which way you want to draw your parts. Longest way left to right, or up and down. If you stood on the side of your K2, and switched X and Y, it would still be the same, right? I've just read that the longest axis should be X. Ballendo posted a long explanation of why somewhere, but I don't recall the specifics. It goes back at least 50 years, though.

Like I said before, you can do it any way you like. It only gets confusing when you're talking to someone doing it the other (correct ) way.

[tauscnc]

Cool. I just want to make sure I am doing it right or the better/best way possible. I completely see how it really does not matter as long as it is setup the right way in your CAD and as long as it cuts. I have known "Ballendo" since the day I started machining and if he says it is this or that way, it IS this or that way. That guy knows so much.

taus

[Jason Marsha]

The reason it seems logical to us Tauseef is when drawing in CAD the coordinate 0,0 is at the bottom left hand corner, assuming positives, therefore, it then follows when viewing the machine from the end with the most access, ie where the gantry does not cut accross your view when cutting, we the deduce that the axis moving away from us is the Y-axis and the one moving to the right is the X-axis as we would plot a graph using the coordinate system.

Jason

[tauscnc]

Hey guys at www.Faztek.net they have 1020 aluminum extrusion for $32 dollars that is 97" long! Thats cheap. I put in my info and UPS ground is only like $4.50.

I am thinking of getting this and adding another rail to the long axis (Y in my case). I would put this to the inside and cut the crossbraces by 2 inches. Get some longer bolts and slap it back together (well a little more to it but you get the idea.)

What do you guys think? I bet it would take most flexing out of the frame.

taus

[Jason Marsha]

The idea sounds great but you need to spot on with your cutting. You do not want to even slightly pull the slide rail bar inwards or have it pushing outwards due to a cross brace being slightly too long or short.

Jason

[CNCRob]

Hey guys at www.Faztek.net they have 1020 aluminum extrusion for $32 dollars that is 97" long! Thats cheap. I put in my info and UPS ground is only like $4.50.

I am thinking of getting this and adding another rail to the long axis (Y in my case). I would put this to the inside and cut the crossbraces by 2 inches. Get some longer bolts and slap it back together (well a little more to it but you get the idea.)

What do you guys think? I bet it would take most flexing out of the frame.

taus

Thats a pretty cool site Taus, I love their AutoCad downloads section.