1-2-3 Metric Block

DESCRIPTIONA 23 hole 1-2-3 engineering block has predominately been used in a machine shop, but becoming more common in a woodworking shop, too. These blocks are manufactured to a high precision, typically to 5um and made of hardened steel and sold in matched pairs. Neither of these material details can be reproduced in a 3D printing environment, but there are still uses for a 1-2-3 3D printed block. These blocks are sometimes referred to as a Precision Engineering Block. Please note that my 23 hole 1-2-3 block design is made to the metric specifications. The sides are 25 x 50 x 75mm. 18 of the holes are 9mm and 5 holes are cut to M10 x 1.5mm. I understand that if you are a puritan, then the printed version is not for you. I offer my 3D print design for where the appropriate use will suffice. What to expect:AspectPrecision Block3D Printed<td style="background-color: #D9E2F3; padding: 0cm 5