Combination Square with metric & imperial scale

A combination square that is printed in 2 parts (3 if you opt to split the blade) and includes Metric and Imperial versions.

You will need 3 * M3x20 countersunk screws and nuts to complete this model.

The Handle

The handle is designed to be printed upwards so that the slot which the blade fits in is as accurate as possble. The model will print fine without supports, bridging the underside, but looks a little messy so the included profile includes supports.

The blade

The blade is designed to have the scale on both sides which means the finish on both sides will be different if printed as a single model. The images included here have been printed using a single model. Included in the profile are 2 variations of the blade model.

• A single model you just print and use
• A twin model where the blade has been split along it's axis so both parts print face down. This has locating lugs and will require you to glue both sides together.

Due to the way onshape handles model parts, each blade is made up ove 131 separate models. If you are not using the included profile and just importing the model, you color the blade by setting the filament colour used for the scale and numbers as the filament for the entire model. Then in the submodels search for “front blade” and “black blade” and set the filament colour for these.

Assembly

The blade has 3 holes at one end and these match up to the 3 holes in the handle. Slide the blade into the slot and secure using the 3 * M3 bolts. Not that the handle supports captive nuts so they are flush to the handle. Also note that the holes in the blade are intentially tight to ensure that the blade fits as accurately as possible and you may have to “screw” the bolts through the holes in the blade.

Quality

The handle and blade print and work well with a standard 0.4mm nozzle. If you have a 0.2mm nozzle to hand then it may well be worth considering using this to print the blade. A profile for a 0.2mm nozzle is included.