ULTIMATE Bee CNC Machine Full Kit - xPRO V5 GRBL

This Full Kit Includes:

● ULTIMATE Bee CNC Mechanical Kit
● Quiet Transmission High Precise SFS1210 Ball Screws and Nuts
● New Design Cable Drag Chain System
● Wiring Shielded Cable Kit
● 2.2KW/1.5KW 220V/110V Water or Air Cooled Spindle Bundle Kit with Dust Cover
● XPRO V5 GRBL Controller Kit
● 2.45N.m Nema23 Stepper Motors
● XYZ Touch Probe
● Free Drill Bits (10pcs/set)

Attention:
● The Ball screw nut fixing and dismounting requires professional tools or done by professional stuffs!Never rotate the ball screw nut over the ball screw end!

● This is very important as if the ball bearings come off the ball nut the ball screw will not work properly and you will void any warranty!

CNC xPRO V5 GRBL Controller

The xPRO V5(We Recommend) is the most advanced GRBL CNC Controller in the world. Developed by Spark Concepts in USA who have been making GRBL CNC products for many years. It runs off a 32bit processor with over 4x the processing power of most other GRBL controllers. The xPRO V5 is pre-assembled and pre-flashed with the latest GRBL version. We recommend the xPRO V5 as the best controller option available. The stepper drivers are easily suitable for our High Torque Stepper Motors and can even power stronger motors such as Nema34.

Features:
● 32bit processor
● High powered Trinamic 6A Stepper Drivers
● Supports VFD control
● Easy Plug and Play
● SD Card which allows for offline use
● Both Wi-Fi connection & USB connection (user choice)
● This option is the best choice for both a novice starting out, and with people with experience and technical knowledge.

Nema 23 Stepper Motor – High Torque

● Holding torque: 2.45N.m
● Rated voltage: 3.6V
● Rated current: 3A
● Step angle: 1.8°±5%
● Phase number: 2
● Insulation resistane: 100MΩ min.(500V DC)
● Insulation class: Class B
● Rotor inertia: 600g.cm2
● Resistance per phase: 1.2Ω±10%
● Inductance per phase: 4mH±20%
● Detent torque: 90mN.m
● Suit for Controller: CNC xPROV5, UC300, High Current GRBL etc.

Features:
- High Torque: Ideal for heavy-duty applications.
- Standard Size: NEMA 23 (2.3"x2.3") for easy integration.
- Precise Movement: 1.8° step angle for accuracy.
- Durable: Long-lasting and reliable.
- Versatile: Suitable for CNC, robotics, and automation.
- Efficient & Quiet: Low noise with high efficiency.
- Flexible Specs: Available in various current/voltage options.

2.2 KW Water or Air Cooled Spindle Kit

● Net weight: 5.5kg(2.2kW Air-Cooled), 5.3kg(2.2kW Water-Cooled), 4.2kg(1.5kW Water-Cooled), 2.6kg(1.5kW Air-Cooled)
● Spec: ∅80x 205 mm
● High Speed-7 series 4 Bearings
● Power: 2.2kW or 1.5kW
● Voltage: 220 ~250 V or 110V
● Frequency: 400 Hz
● Speed: 0-24000 R/min
● Air or Water Cooling
● Run-out off: less than 0.005 mm
● Grease Lubrication
● VFD Inverter 2.2kW/1.5kW 220V or 110V
● 2.2kW Spindle Collet: ER20 (28pcs, size from 1mm/1.5mm/2mm/2.5mm/3mm/3.175mm/3.5mm/4mm/4.5mm/5mm/5.5mm/6mm/6.35mm/6.5mm/7mm/7.5mm/8mm/8.5mm/9mm/9.5mm/10mm/10.5mm/11mm/11.5mm/12mm/ 12.5mm/12.7mm/13mm)

● 1.5kW Spindle Collet: ER11 (15pcs, size from 1mm/1.5mm/2mm/2.5mm/3mm/3.175mm/3.5mm/4mm/4.5mm/5mm/5.5mm/6mm/6.35mm/6.5mm/7mm)


Key Difference:
Water-Cooled: Better for heavy-duty, continuous tasks with quieter and cooler operation.
Air-Cooled: Simpler, low-maintenance choice for moderate tasks with easier setup.


Our Suggestion:
It depends on the application you are using them for.
If you are milling timber then air cooled will be sufficient.
If you are milling metals, or are using the spindle for more than 8 hours at one time then water cooled will be recommended.

Note:

If you want to use your own spindle, please choose “No Spindle Kit”option.

Free Gift - 10PCS Drill Bits (Optional)

ULTIMATE Bee

 Machine Capability

Workable Dimensions(mm):

Frame Size

X-Axis

Y-Axis

Z-Axis

500x500mm

273mm

262mm

180mm

500x750mm

273mm

512mm

180mm

750x750mm

523mm

512mm

180mm

750x1000mm

523mm

762mm

180mm

1000x1000mm

773mm

762mm

180mm

1000x1500mm

773mm

1262mm

180mm

1500x1500mm

1273mm

1262mm

180mm

Recommended Waste Board Dimensions(mm):

Frame Size

Width

Length

500x500mm

355mm

500mm

500x750mm

355mm

750mm

750x750mm

605mm

750mm

750x1000mm

605mm

1000mm

1000x1000mm

855mm

1000mm

1000x1500mm

855mm

1500mm

1500x1500mm

1355mm

1500mm

 ULTIMATE Bee Comparison

Ball Screw Size Engineered For Our Machines

The ULTIMATE Bee features a 12mm Diameter Ball Screw. The 12mm Diameter Ball Screw was carefully selected by our engineers to make the most of a NEMA 23 stepper motor.

Just by having this smaller diameter than a 16mm Ball Screw, it reduces the load on the motor by 25%. In other words, when the NEMA 23 Stepper motor is paired with the 12mm Ball Screw the motion motors drive through tougher materials with up to 25% more torque than the same motors paired with a 16mm Ball Screw.

The reason is very simple: the further you apply the force to the pivot point, the more impact this force will have on the pivot object. On a CNC, the stepper motor shaft is the pivot point, and the distance where the force is applied to the shaft is determined by the diameter of the Ball Screw.
The analogy in the image below helps explain why a smaller diameter Ball Screw can be more effective.

Bigger Ball Screws are recommended when they are designed to work with larger motors such as NEMA 34, or AC Servo motors for the transmission system to compensate for the extra torque required. Machines of this caliber would also use cast and milled steel frames rather than aluminum profiles. A Ball Screw larger than 12mm should not be used in a design where the motors are NEMA 23.

Keeping low-vibration levels in the transmission system is extremely important for a CNC Machine. Due to this, we have paired the ULTIMATE Bee with a 10mm pitch Ball Screw instead of a usual 4mm pitch for the X and Y-Axis. This change has significant results, making the CNC travel more with smaller Ball Screw rotations, thus, reducing the Ball Screw vibration at fast feed rates.

Our engineering tests conclude: A 12mm ball screw has the perfect balance of torque and vibration when paired with a NEMA 23 motor in a CNC Machine size 1500x1500mm or less. Larger Ball Screws are an incorrect design for NEMA 23 Motors. That is why the ULTIMATE Bee is the best design of its kind!

2 Rails Is Better Than 4

Simpler Design, Better Results!

The correct number of linear rails and bearings were selected by our engineers to increase performance. The HGH15CA bearings used on the X and Y-Axis were designed to have the correct spacing between them when mounted to a 20 series profile. The Y-Axis each utilise a single HGR15 linear rail with 2 x HGH15CA bearing carriages on the gantry plates. By using 2 HGR15 linear rails, one on the Y and one on the A-side(Y-Axis Slave), and not 4, the weight, friction and complexity are all reduced while maintaining enough load capacity with the 4 x HGH15CA bearing carriages for a dynamic load rating of approximately 14kN (or approx.1,400kg). In other words the dynamic load rating of our ULTIMATE Bee Y-Axis when using 1 rail per side is approximately 1,400kg!

In a system where only the friction caused by bearings is considered, having double rails and bearings on the Y-Axis as per the image below will add an additional +100% of the amount of friction, therefore, more motor power will be required. If you pair this with any minute misalignment of a bearing or rail during installation, the force required by the same motor to move 4 bearings will result in loss of motor power which is translated to a loss in performance of a machine that uses 2 rails (4 bearings) on one actuator.

Because the X-Axis gantry carries the Z assembly the moment loads (MR in particular) are distributed by using 4 x HGH15CA bearing carriages and 2 x HGR rails.

The Z-Axis uses 2 x MGN15 Linear Rails and 4 x MGN15C carriages spaced to obtain maximum possible resistance to the operational moment loads (MP in particular).

In other words, we reverse engineered the forces that the Z-Axis is subjected to during a cutting operation,and then, calculated the necessary spacing between MGN bearings for the Z-Axis.

NOTE: The position of the Ball Screws, Linear Rails and Bearing Carriage are designed for optimal positioning on all axis (Y, A, X and Z) – another example of Bulk Man 3D engineering innovation.

Parallel Bearing Design

Opposite bearing designs are a flaw

The opposite bearing design implemented by other competitors is an inferior and incorrect engineering design for the X-Axis. The correct design is where the rails and bearings are on the same face because the bearings are less susceptible to twisting from moment forces when paired with another set of bearings.

The opposite bearing design is more susceptible to twisting especially when paired with heavy spindles such as the 2.2kW. The moment force subjected to the bearings in this configuration will induce more runout, meaning worse tolerances compared to a stronger and correctly engineered design that has bearings on the same face.

Correct Couplers Used In ULTIMATE Bee Design

Coupler Comparison

Double diaphragm couplings are designed for ball screws while jaw couplings are not designed for ball screws. Double Diaphragm couplings are more efficient than Jaw Couplings when paired with ball screws as they are designed for zero backlash. The diaphragm coupling design uses metal plates rather than plastic, making them more reliable and yield a longer service life. The double diaphragm coupling allows for higher speed and vibration dampening in the system which is essential for high performance and smooth running of the CNC. Smooth operation with little to no vibration will mean smoother and high-quality cuts. A design which uses a Jaw Coupling with a Ball Screw is an incorrect engineering design and will produce poor finish on the work piece.

Ball Nut Gaskets Reduce Vibration and Binding

Giving the ball nut a vibrational buffer in the form of a rubber gasket, the ball screw remains centered by damping the vibrational forces acting on the metal parts. This provides precision results and prevents the axis from binding up.
This small addition make the ULTIMATE Bee a far more effective system, in order to get the most out of your machine without the worry of damage or chatter on your workpiece.

Upgradeable Motors Achieve Commercial Speeds

Our ULTIMATE Bee CNC has options to have its motors upgraded to achieve high-speed operation similar to industrial machines. Very few machines can match the rapids speeds of up to 30,000mm/min like the ULTIMATE Bee can with servos. This means much faster workflow and more jobs done. Competitor machines offer a maximum of 5000-6000mm/min.

Our Servos offer higher levels of accuracy and can be programmed to get the most performance out of your CNC, so you will not need to upgrade for a faster machine in the future.

Extra Z-Axis Height Increases Work Possibilities

Our machines offer 180mm of Z-axis workspace to maximize the working potential. It is easy to mill out large cuts of wood, plastic or aluminium or add a rotary axis.
When our engineers designed the ULTIMATE Bee we took our customer’s feedback on wanting extra workable height as a main consideration. In this way, there will be no need to make upgrades or additions later to achieve more cutting depth, or space to add a new rotary axis.

The ULTIMATE Bee, The Best and Last of its Kind!

Coming from the WorkUltra lineage, the ULTIMATE Bee was thoroughly designed to be the best and last of its kind. No need for versions 2, 3 and etc. We said NO to upgrades as everything was carefully designed to provide the best possible machine design and performance. As we scoped and advertised, this is the truly ULTIMATE Bee.

 ‘ULTIMATE Bee’ Frame Design Features

Some upgrades from the QueenBee PRO to the ULTIMATE Bee include

Ball Screw Resolution vs Microstepping Table:

Micro Stepping

SFU1204 – 4mm Pitch

SFS1210 – 10mm Pitch

Full

0.02mm

0.05mm

1/2

0.01mm

0.025mm

1/4

0.005mm

0.0125mm

1/8

0.0025mm

0.00625mm

1/16

0.00125mm

0.00313mm

• X-Axis Extrusion Revision

The 2040 Extrusion on the rear of the X-Axis has been replaced with a 4040

to allow for improved cable management and rigidity.

By adding a 4040 extrusion to the back of a C-Beam Extrusion, the X-Axis is

braced with a stronger support.

• Plate Design

All plates have been completely redesigned to incorporate better cable

management, mounting sensors and switches, and allowing for more adaptive

integrated applications.

All of the main plates are made with thick 10mm aluminium. All surfaces where bearing carriages are mounted have been machined flat to provide a smooth

surface for easy and accurate alignment.

• HGR Linear Rails

The Y and A Axis each utilise a single HGR15 linear rail with 2 x HGH15CA

bearing carriages on the gantry plates. By using 2x HGR15 linear rails, one on

the Y and one on the A-side, instead of 4, this reduces the complexity of

assembly and rail alignments without compromise on the performance.

Each HGR bearing has a dynamic load rating of approximately 14kN

(or approx. 1,400kg).

• Diaphragm Couplers

We have introduced diaphragm couplers with the ULTIMATE Bee machines.

One of the main benefits of using diaphragm couplers instead of standard

flexible couplers is that there is significantly less backlash, as well as drastically increasing the resolution and repeatability of the system.

Diaphragm couplers are also designed to have noise reduction and vibration

compensation. The vibration compensation increases the lifespan of the

mechanical hardware used on the transmission system.

• What are Linear Rails and Bearings?

Linear Rails consists of two parts, the rail and the bearing.

The Rail is a precision machined strengthened steel assembly that has twin

parallel tracks to guide a bearing (also know as roller) along.

When combining the rail with the bearing you achieve low friction and high

stiffness linear motion for loads ranging from 1kg to thousands of kilograms.

• Why use Linear Rails?

 Credits