Lawson Buyers Guide

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Lawson Documentation
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Release status: concept

Lawson is a 3D printer with accurate linear motion and a mechanically stiff frame.
CAD Models
External Link

Entries on this page are in no way an endorsement of quality of goods or service. Do your research by Googling <company_name RepRap forum> before you buy. This will usually find other Reprappers' experience with a given company on our forums.

Component Sourcing

Design Goals

  • Simple part sourcing. The number of different suppliers needed to obtain all of the Lawson parts is minimized. Users can obtain 95% of the components from as few as two suppliers.
  • Printable parts also have purchasable counterparts. The Lawson printer, unlike most printer designs, has no components which must be 3D printed, although many of the parts can be 3D printed. This design is accessible to users without access to 3D printers, or who prefer to use metal components instead of plastic ones.


To simply part sourcing, 95% of Lawson components can be obtained from two suppliers, Misumi and OpenBuilds Parts Store. A large number of alternative suppliers can be found in the RepRap Buyers' Guide.


Description Part Number Quantity
Black 2020 400mm HFSB5-2020-400 2
Black 2020 380mm HFSB5-2020-380 2
Black 2020 180mm HFSB5-2020-180 1
Black 2020 60mm HFSB5-2020-60 1
Black 2020 50mm HFSB5-2020-50 1
Black 2040 380mm HFSB5-2040-380 3
Heavy duty bracket HBLTDW5 2
GT2 Pulley GPA22GT2060-B-H4 1
Shaft collar SDSJ16-8 1
2-hole Thin bracket HBLSS5 4
4-hole bracket HPTSSL5 2
8-hole L bracket HPTLD5 2
4-hole L bracket HPTLS5 4
4-hole T bracket HPTTS5 2
Precision lead screw MTSRA10-345-S12-Q6 2
Lead screw nut MTSNR10 2
430mm steel slide BJKSW20-430 1


Description Quantity
Black v-slot 2040 1000mm 1
OpenRail 1000mm 1
25-pack T-nuts 5
Smooth idler pulley kit 3
Solid V Wheel kit 12
2-hole joining plate 6
Build plate 1
Motor mount plate 1
Threaded rod plate 2
20mm gantry plate 1
90deg vslot corner connector 8
5mm x 6mm coupler 2
Precision 1mm shim 16
20mm aluminium spacer 6
0.25in aluminium spacer 6
0.25in nylon spacer 4
Eccentric spacers 6
Belt crimp clamp 4
GT2 timing pulley 1
GT2 belt (1-foot) 8
NEMA 17 motor 4
NEMA 23 motor 1
Endstop + mounting plate kit 3

RepRap Discount

Description Quantity
RUMBA electronics kit 1
MK2A Aluminium heat bed 1


Description Quantity
E3D 1.75mm bowden 1