Dave Holt
Western Thunderer
Although this is still not my intended next job, some further progress has been made by assembling the frames. You'll notice I've also changed the title of this thread to reflect its new status.
A few modifications, especially to the keeper plate/springs unit, to accommodate the inside crank and eccentric and the MJT gearbox for the motor, have been required. The reversing shaft and expansion link brackets have been fixed in place. The motion plate is just temporarily sprung into place. It can't be fixed in the frames till after the outside motion bracket has been made up and modified to clear the expansion links.
Next job is to get the inside cylinder to fit nicely between the frames. I made it to an estimated width, based on measuring loose frame spacers. However, the assembled frames are slightly closer together, so about 0.2 mm per side has to come off the cylinder.
Dave.
A few modifications, especially to the keeper plate/springs unit, to accommodate the inside crank and eccentric and the MJT gearbox for the motor, have been required. The reversing shaft and expansion link brackets have been fixed in place. The motion plate is just temporarily sprung into place. It can't be fixed in the frames till after the outside motion bracket has been made up and modified to clear the expansion links.
Next job is to get the inside cylinder to fit nicely between the frames. I made it to an estimated width, based on measuring loose frame spacers. However, the assembled frames are slightly closer together, so about 0.2 mm per side has to come off the cylinder.
Dave.