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Specifications

MX3 Kit fitted to X3 Milling Machine

We do not list the specifications for the X3 itself as they will vary depending on your location (eg 110V/220V). What we do list here are the specifications of our MX3HMC kit when fitted to an X3.

Designed & Built 

X Axis Travel 

Y Axis Travel 

Z Axis Travel 

X Transverse Speed [Rated] 

X Transverse Speed [Max Capable] 

Y Transverse Speed [Rated]  

Y Transverse Speed [Max Capable] 

Z Transverse Speed [Rated] 

Z Transverse Speed [Max Capable] 

Drive System

Drive Ratio

Drive Motors

Drive Force @ 4200mm/min

X Drive System Protrudes From Table

Y Drive System Protrudes From Table

Home Sensor Type 

Home Position 

Positioning Accuracy 

Repeatability 

Backlash (Single Ball Nut) 

Backlash (Double Ball Nut) 

Leadscrew Type 

Leadscrew Size 

Ball Bearings 

Maximum Footprint 

Melbourne, Australia 

420mm (16.5") Single Nut / 400 (15.7") Double Nut

 195mm (7.7") Single Nut / 175mm (6.75") Double Nut

 395mm (15.5")

 2100mm/min (82"/min)

 4200mm/min (177"/min) 

 2100mm/min (82"/min)

 4200mm/min (177"/min)

 1000mm/min (39.25"/min)

 2000mm/min (78.5"/Min)

 Reinforced High Accuracy Timing Belt

 1:2

 Nema 23, 270oz"

 >23Kg (50lb) - direct push/pull

 62mm (2.5") - less than the original handles!

 125mm (4.9") - less than the original handles!

 IR Optical

 X&Y at Southwest corner, Z at top

 0.01mm (0.0004")

 0.01mm (0.0004")

 0.05mm (0.002") X&Y / 0.15 (0.006") Z

 0.01mm (0.0005") X&Y / 0.1 (0.004") Z

 Thompson Rolled (Manganese Phosphate coated)

 15.6mm (0.615")

 3 x Thrust, 3 x Angular Thrust, 2 X Standard

760mm Y Cover to rear of column (table fully forward)

1060mm X Cover to table end (table fully left/right)

PLEASE NOTE:

Movement speed - The [Max Capable] speeds listed above are the maximum speeds we have obtained from our prototype system without stalling. Allowing approximately 50% overhead we set the [Rated] speeds shown above. Gibbs should always be adjusted correctly as they will cause poor finish when too loose or lower transverse speeds if overly tight. In our tests we connected a spring scale between the table and a fixed object in order to read the thrust avaialble before the motors stalled - even at 4800mm/min (190"/min) the table pulled our 23Kg (50lb) scale 'off the scale' ...and still didn't stall!!

Maximum travel listed above can be +/- 6mm (0.25") depending on your specific machine as variances out of the Seig factory can affect final figures. Customers have on average achieved the travel figures listed.

Backlash -  Thompson rate their ball nuts as being between 0.05mm to 0.3mm (0.002" to 0.013") however we have found them to average at the lower figure (0.05mm or better). Dual ball nuts are adjustable and as such could have backlash similar to single ball nut systems if not correctly set up. When correctly set up dual ball nut systems are theoretically capable of achieving sub thou backlash.

Repeatability shown above is based on accurate toolpaths and correctly configured software. Incorrect backlash settings for example will affect repeatability. 

To assist those who are not familiar with very fine measurements an average piece of 80GSM laser printer paper is approximately 0.1mm or 0.004" thick!!