Acorn with ClearPath 800 steps per rev.

[imacav8r]

I hear of an issue with the Acorn / CNC12 using the CP 800 PPR motors?
This is exactly what i am building. motors in hand.

Any helpful input?

[cnckeith]

they work great with Acorn, follow the instructions here.
viewtopic.php?t=5531

[imacav8r]

they work great with Acorn, follow the instructions here.
viewtopic.php?t=5531

I have read that, and it tells that there is an issue at 800.
It suggests setting at 1600, then setting the motor resolver to 1600 meaning the motor will only take a step when it receives 2 step pulses.

I sure would feel better if it was 1:1

[cnckeith]

please follow the instructions, it works great otherwise we would not be recommended it.

[cnckeith]

and yes, you don't want to run anything below 1600,

think about it, 800 steps per rev. how many steps per inch is that on your machine? this creates very LOW resolution and poor results.

what kind of machine do you have?>

I invite you to make a build thread, here is how.
viewtopic.php?f=60&t=6928

Creating a "build thread" on centroidcncforum.com offers several advantages for a customer, particularly those working on CNC projects with Centroid products like the Acorn, AcornSix, USB-BOB,Hickory, Oak, or Allin1DC controllers. Based on the forum’s structure and guidance, here’s why it’s beneficial:
Organized Documentation: A build thread consolidates all information, questions, and progress about your CNC machine project into a single, cohesive post. Instead of scattering details across multiple threads or emails, everything—from initial setup to troubleshooting—is in one place. This makes it easier for you and us to track your progress and refer back to earlier steps or solutions.

Timely CNC Technical Assistance: The forum’s posting guidelines highlight that a build thread is "an effective way to receive timely technical support." By keeping everything centralized, experts like moderators or other power users can quickly spot where you’re at and offer targeted solutions, especially since Centroid staff actively monitor the forum.

Resource Centralization: The forum encourages linking to a single photo album, YouTube channel, or Google Drive folder within your thread. This keeps all visuals and files in one spot, making it easier for you to manage resources and for others to follow along without sifting through attachments spread across multiple posts.

Showcasing and Learning: A build thread lets you document your journey start-to-finish, which can be satisfying and educational. You can share successes (like completed retrofits, featured in the "Success Stories" section) and learn from feedback. It also inspires others while allowing you to refine your approach based on community input.

Better Support from the CNC Community: The forum emphasizes that a build thread helps others understand your project comprehensively. When you need help, responders (including Centroid staff and experienced users) can see the full context—photos, specs, and prior issues—without you having to repeat yourself. This leads to faster, more accurate advice, as the community doesn’t have to dig through disjointed posts to piece together your situation.

In short, a build thread streamlines communication, enhances support quality, and creates a valuable record—saving you time and frustration while maximizing the forum’s collaborative potential.

[imacav8r]

"and yes, you don't want to run anything below 1600,

think about it, 800 steps per rev. how many steps per inch is that on your machine? this creates very LOW resolution and poor results.

what kind of machine do you have?"

An Avid CNC 2x4 router. 2.73:1 reduction with 1" final drive (3.14159" travel per final drive rev.)
my steps per inch works out to be 695 steps from an 800 step motor.
i dont think there is a difference in resolution between 800 / 1 step or 1600 / 2 steps

[cnckeith]

great, read this.
viewtopic.php?t=1801

and this
viewtopic.php?t=8649

[ShawnM]

The RLN series motors work awesome with Acorn at 1600 step/rev. I use these motors all the time on router retrofits at 1600 with ZERO issues.
Follow the links Keith posted and read why Centroid does it this way.