Gear O'Clock - number plates and couple of changes

thingiverse

Following on from Bad Brad's Gear O'Clock (amazing) and VeryWetPaint's accessories (brilliant), I have produced two plates - one for the odd numbers and one for the even numbers - dimensions still in inches. There are another couple of files here too which I hope will help people with home build reprap machines - I am using a RepRapPro Huxley. In order to slice the open top mechanism housing and the main drive gear from VeryWetPaint using Slic3r and Skeinforge I found that I had to rotate them through 180 degrees in the Z direction before I could get a print - the files here are the ones from VeryWetPain but rotated as above. Bearing in mind that I am working in mm and that that PrintTo3D and VeryWetPaint are working in inches, I used the scale option in Slic3r for my two clocks. The first clock, which I wanted to mount on my desk divider at work was scaled at x20 and I used a scale of x25 for my other one - this is the maximum size for my RepRapPro Huxley - the ClockBaseDiv4 STL from VeryWetPaint is excellent and just about fits on my print bed at x25. I amended VeryWetPaint's slotted drive gear as I purchased a clock movement with circular push fit type shafts. (Here in the UK, the only movement I could find with a slotted minute shaft was VERY expensive and so I used movements from www.ClockParts.co.uk - a lot cheaper!). The file here, (which has a drive gear scaled at x20 from the original) has a 3.6mm hole which pushes on to the minute shaft: no need to remove the hour shaft. This part has a 26mm diameter face and takes the second hand gear scaled at full size. At first, I started printing numbers using a single colour, intending to paint them but after reading Stephen Cropp's very well documented technique for splitting GCode in order to print multicolours, decided to become a purist and make my clock 100% plastic, no paint! http://stephen.cropp.co.uk/category/3d-printing/ Instructions For those working in mm, print the main clock mechanism at a scale of 25.4 no matter what scale you use for the rest of the parts otherwise it will not fit the clock mechanism. Scale the numbers plates to whatever scale factor you use for the main dial and main drive gear. The only "already scaled" STL file is that for the main drive gear with the 3.6mm push fit hole. This is for a x20 scale clock which gives a numbers gear at approximately 8in diameter. ClockMechanismMountOpenTop is identical to VeryWetPaint's file apart from being rotated 180degrees in the Z axis - which I needed to do in order to slice in Slic3r and Skeinforge.