Butterfly Damper / VCD / Shiber

This is a manual Volume Control Damper (VCD), that allows to control air flow in the round vent tubes. I disigned it for my needs, to use in shop-vac tracks. In my case it is built on PP pipe 40x1.6mm, so the models corresponding to it. It is impossible to generate models for all existing tube sizes. Just go to the project an setup your own version. It's simple ) BTW, you'll need a couple bolts M3 (configured up to M5) and a push spring 0.5х5.5х18.5mm. The model plate is a half of the gate valve. Print it twice, clear and fit to the key. Then glue the halves together, but not the key! This is fixed in a different way. All the table holes is 3mm diameter. The knob and knob rounded models have a practical difference. You don't need to press the rounded button, just turn the crank and that's all. You will need to drill your pipe more or less precisely. A small hole is the same diameter as the bolt (3mm by default). The bigger one is matched to the big ring on the key. Source The source is here . How to use my configurable models in OnShape To get an access to the thing source you'll need an account in OnShape. It can be free, so made it for yourself. Go to the document by the specified link. Go to the tab " print setup ". There should be a few configurable values in the upper-left corner. Change what you need. Wait while rendering finished then export parts from this tab (see in the bottom-left corner). They already oriented in the best printing position. Printing disclaimer You must have a well calibrated printer including correct flow setting for the filament which you suppose to use. The printing tolerance is 0.15mm . If you're not sure or didn't understand what I'm talking about - don't waste the time to make this thing. Or don't blame me after, that your printed parts don't fit together. Also in some cases you'll need to use the tools (needle files for corners, drill bits for holes and etc.) to reach the best result from the printed model. Especially if use don't use Linear Advance or similar algorithm. You shouldn't expect that the model will be fine immediately from the printer. At least not always :)