The WorkBee was originally designed as a dual drive system, making it a screw drive at smaller sizes and belt driven at larger sizes. Previously WorkBee sizes greater than 1000x1000mm were limited to belt drive because of un-acceptable whip exhibited by an ACME Screw at long lengths. However we have recently changed the WorkBee Design and Assembly method to drastically reduce the whip in extra large ACME Screws to an acceptable level for day to day operation.
If you already have a belt drive WorkBee this conversion kit is for you. Using the parts from this kit, along with parts from dis-assembling the belt portion of the WorkBee, you will be able to fully convert your machine to a screw drive system on all axis.