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HYDRA multi tool CNC , based on ACRO
![](https://openbuilds.com/data/article_cat_images/s/0/286.jpg?t=0)
modifying ACRO
![OpenBuilds ACRO System](https://openbuilds.com/data/article_images/l/5/5416.jpg?t=1529678125)
Build Author
Mark Carew
Views
210674
OpenBuilds ACRO System
![](https://openbuilds.com/data/article_cat_images_nondefault/s/0/318.jpg?t=1529427874)
The OpenBuilds ACRO System was developed to be the most accurate and cost effective positioning system in its class. The ACRO System incorporates the OpenBuilds V-Slot system and, therefore, has the unique ability to expand to multiple sizes creating a size configuration custom to your needs. Choose the size that best fits your workshop. This versatile system allows for precise positioning of many different mountable tools and attachments.
![Mighty Chihuahua](https://openbuilds.com/data/article_cat_images/l/0/286.jpg?t=0)
Build Author
Jose Alezandre
Views
1382
Mighty Chihuahua
![](https://openbuilds.com/data/article_cat_images/s/0/286.jpg?t=0)
The idea was to use materials from previuos failed projects into a succesful one. I have build this tiny but powerfull CNC machine mainly using the universal gantry plates for the X and Y axis. Also another innovative part is the fact that I assembled the Z gantry with 2 aluminum sections of 20X40 and one aluminum seccion of the 20X20. I used NEMA 17 stepper motors with GT2 pulleys. This was designed on Fusion360
![Modular DIY CNC Machine](https://openbuilds.com/data/article_images/l/6/6140.jpg?t=1516590691)
Build Author
jtaggard
Views
32872
Modular DIY CNC Machine
![](https://openbuilds.com/data/article_cat_images/s/0/286.jpg?t=0)
This modular CNC machine is based on the OpenBuilds ACRO System, however I wanted something that did more than just laser engrave. So I designed my machine using the same style as the ACRO but with some upgrades such as an actual Z-axis and the ability for multiple tool attachments.
First build - small scale
![](https://openbuilds.com/data/article_cat_images/s/0/286.jpg?t=0)
Using basic standard components, beams, motors, belt drive on x and y, z is a screw. Using Grbl Panel on Windows 10. Really basic router, had trouble getting the controller to turn on the router and set speeds so it is currently wired to a power bar switch so it runs full speed and I just use the switch to turn it on and off. Just getting x, y and z control working properly for now and likely going to switch the router to my dremel 4000 using a 3d printed mounting bracket I got from thingiverse
First CNC Build
![](https://openbuilds.com/data/article_cat_images/s/0/286.jpg?t=0)
Building my First CNC for PCB milling. Some modification done to the original build from OpenBuild Bundle.
Vertical Drill Mill
![](https://openbuilds.com/data/article_cat_images/s/0/286.jpg?t=0)
Mill drill using a dremel and some 3d printed parts
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