[accuracymark]

I am getting together a parts list for my project. I am using NEMA 23 servo's on the XY axis and a Nema 34 on the Z axis. I have been told to use a 1-5 pulley ratio on the X andY I was wonder what one should use on the Z axis?

As well and recommends on belt and pulley size?

[rrobb]

Rather than asking what to use, I think the more important question is; why would I use this, or that specific thing?

What are your goals for this project?


Cory

[accuracymark]

I was just looking for info, on a specific area. Do I have to explain my goals to get info?
This machine is being built for:
1 Fun
2 there is lots of Kit's and doodads already out there and don't have to reinvent the wheel.
3 I hate steppers

[691175002]

We need to know your servo torque to be able to know the pulley ratio.

I'd guess 1-10 given that the xy is 1-5 but thats only a guess.

[SCzEngrgGroup]

I am getting together a parts list for my project. I am using NEMA 23 servo's on the XY axis and a Nema 34 on the Z axis. I have been told to use a 1-5 pulley ratio on the X andY I was wonder what one should use on the Z axis?

As well and recommends on belt and pulley size?

If you want a good result, MEASURE the torque required to move each axis, add in some generous margin (30-50%), then CALCULATE the required reduction to achieve that torque with the motors you intend to use. There's no way anyone else can give you the right numbers, not knowing what motors you're using, what drivers you're using, and what the characteristics of YOUR machine are.

Regards,
Ray L.

[accuracymark]

KL34-170-90 (NEMA 34) Dual Shaft, Front Shaft
1/2" Rear shaft 1/4" 850 oz-in Peak 90V,

is the unit for the Z axis

Still waiting on Gizzly to have the mill in stock. I would be picking it up from there Bellingham store.

[sdubfid]

KL34-170-90 (NEMA 34) Dual Shaft, Front Shaft
1/2" Rear shaft 1/4" 850 oz-in Peak 90V,

is the unit for the Z axis

Still waiting on Gizzly to have the mill in stock. I would be picking it up from there Bellingham store.

I'm guessing you are in BC? I'm in coquitlam with a g0704. I have my ballscrews and 3 axis servo kit ready to go. Using dmm nema 23 ac servos on all axis. My belts and pulleys just shipped yesterday. I am planning to use 2:1 reduction for max 300ipm.

[accuracymark]

I'm guessing you are in BC? I'm in coquitlam with a g0704. I have my ballscrews and 3 axis servo kit ready to go. Using dmm nema 23 ac servos on all axis. My belts and pulleys just shipped yesterday. I am planning to use 2:1 reduction for max 300ipm.

Wow fast rapids. I'm good with around 150ipm or so.

I'm in Langley

[sdubfid]

If it doesn't work out it will be cheap to change the pulleys. The charts for my motors have flat line torque across the rpm range so I'm hoping it will work well. You are free to come check it out when it's running, most likely in nov sometime. Learn from my mistakes haha.

[cornbinder23]

Wow, I am just over the border from you guys.
I have spent a bit of time up in POCO doing a little RC racing
My wife is Canadian, and my in laws are up in Sidney, so I spend a fair bit of time up in the Vic area.
I have met a few really nice guys up there from here on the Zone.
Maybe we can all hook up sometime and have a BBQ or something.(summer)

JTCUSTOMS

[rwskinner]

I run those servos with 3:1 pulley ratios (15/45) on all three axis of my RF45 which is a little larger than a 704. At 72 volts your top speed will be around 195 ipm and loads of power, enough to bow a 1/2" roughing end mill like a bannna.


Richard

KL34-170-90 (NEMA 34) Dual Shaft, Front Shaft
1/2" Rear shaft 1/4" 850 oz-in Peak 90V,

is the unit for the Z axis

Still waiting on Gizzly to have the mill in stock. I would be picking it up from there Bellingham store.

[accuracymark]

Wow, I am just over the border from you guys.
I have spent a bit of time up in POCO doing a little RC racing
My wife is Canadian, and my in laws are up in Sidney, so I spend a fair bit of time up in the Vic area.
I have met a few really nice guys up there from here on the Zone.
Maybe we can all hook up sometime and have a BBQ or something.(summer)

JTCUSTOMS

sounds like a plan