I have expanded the working area of my cnc machine from a 4030 to a 1000mm x1000mm. I installed new 1000mm X and Y axis C beam extrusion along with new T8 Acme lead screws. I paid for this upgrade myself and purchased all of the parts for for the cnc from Opendbuilds.com. My affiliate links to all the parts are listed below.
Openbuilds Affiliate Link
https://openbuildspartstore.com/?ref=...
Parts I used from Openbuilds
8mm Diameter Acme Lead Screw 1040mm in Length 3 Pieces
https://openbuildspartstore.com/8mmm...
C Beam Extrusion 1000mm in Length 3 Pieces
https://openbuildspartstore.com/cbea...
V Slot 20x80 Linear Rail 1000mm in Length 2 Pieces
https://openbuildspartstore.com/vslo...
Lock Collar 6 Pieces
https://openbuildspartstore.com/lock...
Nut Block for 8mm Lead screw 6 Pieces
https://openbuildspartstore.com/nutb...
Thrust Bearings 6 Pieces
https://openbuildspartstore.com/thrus...
3mm Aluminum Spacer (10 Pack) 2 Packs
https://openbuildspartstore.com/alumi...
Precision Shim 10x5x1mm 12 Pieces
https://openbuildspartstore.com/preci...
M5 Low Profile Screws 55mm(10 Pack) 1 Pack
https://openbuildspartstore.com/lowp...
XLarge C Beam Gantry Plate 3 Pieces
https://openbuildspartstore.com/xlarg...
Parts I bought from Amazon
8mmx8mm Aluminum Coupler
https://www.amazon.com/gp/product/B08...
Drag Chain
https://www.amazon.com/gp/product/B07...
Vacuum Hose Boom Shower curtain rod from Home Depot
https://www.homedepot.com/p/ZennaHom...
Suckit Vacuum Hose Boom 3D Print Model
https://www.thingiverse.com/thing:323...
Onefinity Vacuum Hose Boom Etsy
https://www.etsy.com/listing/83698039...