SX3.....Hello 2

[1hand]

Hello, I'm Matt. I'm new here and to the CNC bug.

I'm wanting to convert my SX3 to CNC. I have FigNoggle plans.

First Question of many:

The FigNoggle plans call for Nema 34's all the way around. So can you use a 906oz 34 with (2) 400oz 34's with the G540 Drive? I know there's some questions about Amps or something with the 34's???

Thanks if you can help me out, and Hello to the rest of you!!
Matt

[1hand]

Here are the Plans I'm using.

Matt

[1hand]

Started the Z axis Motor plate today.



2 Hours Later:



Matt

[Teyber12]

looks like a good start

[Crevice Reamer]

Hello, I'm Matt. I'm new here and to the CNC bug.

I'm wanting to convert my SX3 to CNC. I have FigNoggle plans.

First Question of many:

The FigNoggle plans call for Nema 34's all the way around. So can you use a 906oz 34 with (2) 400oz 34's with the G540 Drive? I know there's some questions about Amps or something with the 34's???

Thanks if you can help me out, and Hello to the rest of you!!
Matt

Hi Matt. Welcome to the Zone!

A. You want to use a 48V PSU for best motor operation with G540. The 906 will work well with that and you should use it for the Z.

B. The K400 has a max Voltage of 41V, and will overheat at 48V, so this is not recommended.

C. Detuning the 6A K400 down to 3.5A will reduce its torque to only 233oz, so this is not recommended.

You should use 2 N23 K381s for X and Y. Modify the plans accordingly. If you have already cut the mounts for N34, you could always make or buy an adapter plate:

http://www.cncrouterparts.com/produc...products_id=30

Here's my recommended SX3 electronics:

http://crevicereamer.com/Page_30.html

CR.

[1hand]

Thanks CR. I had read your site a few times, and seen your recommendations. I was just wondering if there was a way around not changing the plans. But as you said Not a big deal to change the 2 mounts to except the 23's. Thats why I started with the Z axis motor plate first, so I could get some feed back.

So now the Coupling and pulley numbers will change also from the plans. Basically I spent $50 on Z axis mount plans. Oh Well, thats what we do.

[Crevice Reamer]

Changing from the 400s to 381s will give way better performance and SAVE you almost $60. Nice work on the Z mount!

CR.

[1hand]

Made up the Z axis brackets today.







Matt

[vlmarshall]

Looking good, Matt!

[1hand]

I want to start ordering the electronics soon. So I started my shopping list.

2 KL23H2100-35-4B 381oz steppers
1 KL34H295-43-8A 906oz stepper
1 6foot straight thru parallel port cable
1 KL-G540-48 Controller Box
3 3.48KXBK-ND 3.48 resistors
1 Belden 8723-100 Stepper Motor Cable wire


Do I need to get Homing switches, or will the soft stops in Mach 3 work for this?

Do I need to get motor connecting plugs to plug into the G540?

Anything else I Need to get this up and running?

Thanks Matt

[photomankc]

Nice work! You're moving right along.

[Crevice Reamer]

I want to start ordering the electronics soon. So I started my shopping list.

2 KL23H2100-35-4B 381oz steppers
1 KL34H295-43-8A 906oz stepper
1 6foot straight thru parallel port cable
1 KL-G540-48 Controller Box
3 3.48KXBK-ND 3.48 resistors
1 Belden 8723-100 Stepper Motor Cable wire


Do I need to get Homing switches, or will the soft stops in Mach 3 work for this?

Yep. You can do soft limits without limit switches, but home switches are VERY handy. One way to mount them:

http://crevicereamer.com/Page_35.html

Do I need to get motor connecting plugs to plug into the G540?

No, they come WITH the G540.

CR.