I made the mistake of mounting my first shaft with the 2mm seat disks BETWEEN the bearings. Provided your shaft is straght, you should not have any friction on the top cap hole, and little if any wobble in the head assembly. In addition, the top bearing assembly SHOULD be mounted inside the T, rather than inside the top cap. Finally, place the seat plate to hold the shaft in place vertically in the spindle. The shaft is passed through both disks and the bearing positions adjusted. That is, the 5mm disk goes into the T first. It is advisable to place the 2mm seat plates on the outsides of the shaft. One revision I have made to assembly regards the bearing seats. With all caps in place, the spindle is rain and wind proof. Cabling passes through the middle portion of the T into the logic module's T housing.įinally, an end cap seals up the bottom end. You can vote up the ones you like or vote down the ones you dont like, and go to the original project or source file by following the links above each example.
#FREECAD ASSEMBLY CODE#
Fit the hole accurately to the cable assembly). The following are 14 code examples of FreeCAD.open().These examples are extracted from open source projects. Wiring from the PCV is passed through a hole drilled through the bearing mounts (after glued in place. It is to the 50mm cap that arms are attached for wind cups, or a vane and weighted point for a wind vane. The 50mm 'hood cap' overhangs the 40mm cap, preventing wind from blowing dust or rain into the space above the top of the spindle body, thus keeping the whole assembly clean and dry. Between the star disks and the spindle main body is a thrust bearing (silver-orange-silver). It is the 50mm PVC cap that press fits over these the drives the shaft assembly. Two 5mm "star disks" are press fit to the top of the shaft. It's center hole is cut larger than the shaft, but smaller than the outside diameter of the bearing. It's center hole is cut to the outside diameter of the bearing. The centering disk is 5mm thick, to match that of the bearing. This wind vane PCB with 8 switches has a resolution of 16 directions, since two adjacent switches may be pulled closed by the magnet.īoth bearings (yellow) are held in place by a two part acrylic disk bearing seat (red). As the magnet rotates, it pulls the reed switch/s nearest it closed. A magnet (orange) is held by an acrylic disk (red) which is press fit to the shaft. The saft (blue) rotates in a set of two bearings (yellow). The green PCB holds 8 micro reed switches, surface mount resistors, and a 8 channel digital I2C expander IC. You can open it in FreeCAD, explore the mechanical design of the spindles, find the parts and make your own modifications. I am adding those images now, and will link the mechanical file. I learned 3D modeling before anyone had transparent parts so I learned to work with wire frame. I also have to deal with the never fixed viewing problem for some cards. Would like the option of using the position of the part and then fix it. I dug out my FreeCAD drawings and made images of the drawing. Assembly is so touchy that the part moves so I have to reposition it.
0 kommentar(er)
