Now, hide the barb body from the components list by clicking the eye icon. Since we are done with the barbs, we can now replicate that process for all of our fittings for the silicone tube, simple as that! But!! How do we make a screw (male) fitting for the barb you ask?! Follow along. Select them all and click combine from the modify menu. Once you've done it for all three of the cylinders, unhide them from the component list. Now you can easily select the edge and repeat the same chamfer process with the same values you used for height and depth. From the component list on the left, click the eye icon to hide the cylinder we just chamfered.

To select the top edge of this cylinder you may want to hide the one we just modified. Now click OK and move on to the next body, the cylinder below. The height will be our small cylinder heights and the depth should be 1mm in my case, but play around with these values to see what they do.

This will allow you to set a height and depth to the chamfer. While selected, choose the command chamfer under the modify tab. Select the top edge of the top stacked cylinder by clicking on it. Like the images.įinally for this step, we Chamfer the edges to give it the actual barb shape. You should have 3 separate bodies of the same cylinder stacked on top of each other. Now do the same process you did with the second small cylinder for the third one.

Set the height to the same as the one before and go on to the next one. Once we have started the extrusion, do the same we did with the first cylinder and make sure to choose the 'new body' option. Next, we will click on the top surface of the cylinder we just created to select it, and once selected press 'e' to extrude the surface. Make sure that in the pop up menu on the right, you select 'new body', BE CAREFUL not to select CUT or JOIN !! (This will prevent us from moving onto the next step. This time make the diameter 2mm wider and make the extrusion height ~1/3rd of your cylinder. Start by creating another cylinder right at the bottom, center (center of origin) of the one we created in Step 1. A proven method for this fitting is known as 'barbs'. Now you have a basic cylinder, the goal is to make it into a surface that the silicone tube wants to grab onto and ideally become water tight when it does.

Slice fusion 360