The OpenBuilds ACRO was developed to be the most accurate and cost effective 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.
OpenBuilds ACRO System
A System Like No Other!
What can you do with an ACRO system?
With its modular nature the ACRO is an extremely versatile system that allows for precise positioning of many different mountable tools and attachments.
We love having this system in the shop! Its ability to be modified means it can easy easily be adapted to a whole range of applications.
We are excited to release this system to the community and look forward to seeing all the amazing adaptations and projects that are sure to transpire.
'Many thanks go out to the entire OpenBuilds Team as well as the OpenBuilds community for the efforts in making the ACRO a revolutionary modular system like no other' - Mark Carew
OpenBuilds ACRO Specs:
- 4.5 micron resolution - 30% higher resolution than other systems in its class
- Sizes from a desktop 19" (500mm) size up to a monstrous 59" (1500mm) version
- X/Y Axis Travel Min 12" (300 mm) - Max. 50" (1300 mm)
- Z Axis Travel 2-3/4" (70mm) manual adjustable Z axis length
- Available in Industrial Black or a Sleek Silver
- Quick Assembly TimeMany Sizes Available
M i n i to M o n s t e r !
- Assembly Video of the ACRO System -
Follow along with this easy step by step build-along video.
Then, you will have an awesome system for your work space.
* Build Video Link Sections:
Click below for different chapters of the Video Build
PART 1 - Pre-thread the extrusions
PART 2 - Assemble the V-Wheels
PART 3 - Build the Y carriages
PART 4 - Install Y axis motors
PART 5 - Assemble the X carriage
PART 6 - Adjust the pulleys
PART 7 - Assemble the X axis and install belt
PART 8 - Assemble the Y axis and install belt
PART 9 - Join the X and Y axis together
PART 10 - Insert the the horizontal braces
PART 11 - Example of how to Install a laser diode
Please note: There are many different options for controller/driver packages that can be used to control your machine.
Here are a few to look at and how to hook them up:
CNC xPRO Driver (All in one Controller/Driver)
Board stepping set to 1/16 (use the jumpers)
Steps per mm are 114.29
Arduino CNC Shield
Board stepping set to 1/16th step (use the jumpers)
Steps per mm are 114.29
Laser Diodes can be attached to the ACRO system mounting plate as well as other tools and accessories - use at your own risk!
Please note: There are lot of great choices when it comes to laser diodes, so be sure to pick the right one for your application. Power choice is important as well as making sure your diode supports PWM.
The ACRO multi mounting plate hole pattern is designed to accommodate many available diodes. If the diode you choose has a different mounting pattern you can easily drill holes in the acrylic to mount.
Please discuss the diodes that you use in the discussion for the ACRO
- Remember that it is not a toy.
- Laser radiation is dangerous even when scattered or reflected from any surface.
- Always use proper protection laser filter on your CNC machine dedicated to 430 - 480nm in order to avoid reflected radiation.
- Never point laser head at people or animals.
- Do not touch the beam, it may cause burns.
- Do not stare at the beam or the beam spot while the material is being cut.
- Laser radiation - Avoid eye or skin exposure to direct or scattered radiation.
* Machine settings:
Please note: These are grbl setting that we have found that work with our test machines, feel free to experiment and change them to suit your needs and please share your findings with the community.
ACRO GRBL Settings - This information can also be used to set up other firmware as well
$0=10 (step pulse, usec)
$1=255 (step idle delay, msec)
$2=0 (step port invert mask:00000000)
$3=6 (dir port invert mask:00000000)
$4=1 (step enable invert, bool)(Board V1, V2, V3 Matte = $4=0 - Glossy board V3 = $4=1)
$5=0 (limit pins invert, bool)
$6=0 (probe pin invert, bool)
$10=0 (status report mask:00000010)
$11=0.020 (junction deviation, mm)
$12=0.002 (arc tolerance, mm)
$13=0 (report inches, bool)
$20=0 (soft limits, bool)
$21=0 (hard limits, bool)
$22=0 (homing cycle, bool)
$23=1 (homing dir invert mask:00000000)
$24=25.000 (homing feed, mm/min)
$25=500.000 (homing seek, mm/min)
$26=250 (homing debounce, msec)
$27=1.000 (homing pull-off, mm)
$30=1000 ($30 - Max spindle speed, RPM)
$31=0 ($31 - Min spindle speed, RPM)
$32=1 (Laser mode, boolean)
$100=114.290 (x, step/mm - 1/16 step - Set this according to your boards step setting)
$101=114.290 (y, step/mm - 1/16 step - Set this according to your boards step setting)
$102=114.290 (z, step/mm - 1/16 step - Set this according to your boards step setting)
$110=10000.000 (x max rate, mm/min)
$111=10000.000 (y max rate, mm/min)
$112=10000.000 (z max rate, mm/min)
$120=2000.000 (x accel, mm/sec^2)
$121=2000.000 (y accel, mm/sec^2)
$122=2000.000 (z accel, mm/sec^2)
$130=1000.000 (x max travel, mm - Set this to your machine safe cut area)
$131=1000.000 (y max travel, mm - Set this to your machine safe cut area)
$132=1000.000 (z max travel, mm -Set this to your machine safe cut area)
* Software Work Flow:
Please note: There are many different options for software packages that can be used for design and control
Design - Tool Path - Control
LaserWeb Software (can also control milling machines, draw bots, etc.)
NOTE: Be sure to check out all the cool CAD/CAM programs out there to take your machine to the next level!
OPEN SOURCE - The ACRO System is Open Source and the Builder community is encouraged to modify and build on this design. We are excited to see what you attach to your ACRO System and the things that you make!
EASY TO BUILD - With the V-Slot Modular Framing System and OpenBuilds Build-Along Video, assembly is quick and easy.
AFFORDABLE - OpenBuilds budget friendly parts allow Builders the opportunity to freely create.
CUSTOMIZATION - Take it to the next level and make it your own! Share your builds with the Open Source Builders community OpenBuilds.com
Grab Your ACRO System Today & Unleash Your Creativity!
- For your convenience and ease of purchase this machine is available as a Parts Bundle -
OpenBuilds ACRO System
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.
- Build License:
- CC - Attribution - CC BY
Reason for this BuildTo bring an expandable and cost effective laser system to the world!
Inspired byOpenBuilds Belt and Pinion System
Qty Part Name Part Link Comments 1 OpenBuilds ACRO System Bundle http://openbuildspartstore.com/openbuilds-acro-laser/ Link Here you can buy the mechanical parts needed to build the ACRO System- Complete Parts List Below 8 Precision Shim - 10x5x1 http://openbuildspartstore.com/precision-shim-10x5x1mm/ Link SKU 5 8 Nylon Insert Hex Locknut - M5 http://openbuildspartstore.com/nylon-insert-hex-locknut-m5/ Link SKU 10 6 Double Tee Nut http://openbuildspartstore.com/double-tee-nut/ Link SKU 60 6 Set Screw - 4mm http://openbuildspartstore.com/set-screw/ Link SKU 85 16 Aluminum Spacer - 6mm http://openbuildspartstore.com/aluminum-spacers/ Link SKU 90 - Sold in Packs - You will need 16 Singles 8 Low Profile Screw - M5*30mm http://openbuildspartstore.com/low-profile-screws-m5/ Link SKU 125 - Sold in Packs - You will need 8 Singles 4 Low Profile Screw - M5*40mm http://openbuildspartstore.com/low-profile-screws-m5/ Link SKU 135 - Sold in Packs - You will need 4 Singles 12 Solid V Wheel Kit http://openbuildspartstore.com/solid-v-wheel-kit/ Link SKU 480 10 Tee Nuts - M5 http://openbuildspartstore.com/tee-nuts-25-pack/ Link SKU 536 - Sold in Packs - You will need 10 Singles 4 Black Angle Corner Connector http://openbuildspartstore.com/black-angle-corner-connector/ Link SKU 540 4 L-Bracket - Single http://openbuildspartstore.com/l-bracket/ Link SKU 545 4 Cable Ties http://openbuildspartstore.com/cable-ties-10-pack/ Link SKU 675 - Sold in Packs - You will need 4 Singles 12 Self Tapping Screw http://openbuildspartstore.com/self-tapping-screw/ Link SKU 720 4 Low Profile Screw - M5*20mm http://openbuildspartstore.com/low-profile-screws-m5/ Link SKU 750 - Sold in Packs - You will need 4 Singles 8 Low Profile Screw - M5*10mm http://openbuildspartstore.com/low-profile-screws-m5/ Link SKU 878 - Sold in Packs - You will need 8 Singles 12 Button Head Screws M3 - 10mm http://openbuildspartstore.com/button-head-screws-m3-25-p... Link SKU 880 - Sold in Packs - You will need 12 Singles 8 Low Profile Screw - M5*15mm http://openbuildspartstore.com/low-profile-screws-m5/ Link SKU 922 - Sold in Packs - You will need 8 Singles 4 Low Profile Screw - M5*8mm http://openbuildspartstore.com/low-profile-screws-m5/ Link SKU 946 - Sold in Packs - You will need 4 Singles 3 GT2-2M Timing Pulley - 14 Tooth http://openbuildspartstore.com/gt2-2m-timing-pulley-14-to... Link SKU 960 1 Laser Acrylic Plate Set Link SKU 3020 6 GT2-2M Timing Belt http://openbuildspartstore.com/gt2-2m-timing-belt/ Link Size Varies 3 feet (500mm) 4 feet (1000mm) 6 feet (1500mm) 3 NEMA 17 Stepper Motors http://openbuildspartstore.com/nema-17-stepper-motor/ Link SKU 623 - Option to Include in Bundle 1 Slot Cover / Panel Holder http://openbuildspartstore.com/slot-cover-panel-holder/ Link SKU 125-LP-B 6 V-Slot Linear Rail http://openbuildspartstore.com/v-slot-linear-rail/ Link Length & Color Varies by Option 1 24V Power Supply http://openbuildspartstore.com/24v-14-6a-meanwell-power-s... Link SKU 591 - Option to Include in Bundle 1 xPRO Driver Board http://openbuildspartstore.com/cnc-xpro-v3-controller-ste... Link SKU 885 - Option to Include in Bundle 1 Ball Driver Screw Set http://openbuildspartstore.com/balldriver-screw-driver-set/ Link SKU 2145 - Alt. Allen Keys are included in Bundle 4 Button Head Screws M3 http://openbuildspartstore.com/button-head-screws-m3-25-p... Link SKU 815 - Sold in Packs - Will need 4 Singles 4 Nylon Insert LockNut - M3 http://openbuildspartstore.com/nylon-insert-hex-locknut-m3/ Link SKU 2160