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1 | Part Name | Vendor | SKU | Unit Cost | Quantity | Total Price | Num Per Container | Num Used | Notes | |
2 | ||||||||||
3 | *note that I get a small commission off these Amazon links, but this is where I buy a lot of my supplies anyway. | |||||||||
4 | I recommend checking your local hardware store first, as many of these materials are available there, consider these links more of a reference than a specific brand requirement. | |||||||||
5 | ||||||||||
6 | Brass Stock | |||||||||
7 | 3/16" 360 brass 4" x 6" sheet | McMaster-Carr | 8954K412 | $36.16 | 1 | $36.16 | ||||
8 | 1/8" 360 brass 4" x 12" sheet | McMaster-Carr | 8954K149 | $47.76 | 1 | $47.76 | ||||
9 | 0.5" diameter x 6" 360 brass round stock | McMaster-Carr | 8953K174 | $16.42 | 1 | $16.42 | Only about 1.5" of this is needed for cutting shaft collars. | |||
10 | 0.063" 353 brass sheet 6" x 6" sheet | McMaster-Carr | 8956K175 | $33.31 | 1 | $33.31 | McMaster does not sell 360 ultra machinable brass in thinner sheets. I used the 353 brass instead, it is also very machinable. | |||
11 | ||||||||||
12 | Silver-Toned Metal Shim (optional) | |||||||||
13 | n/a – you will only need a tiny scrap of silver colored metal | source locally | $0.00 | 1 | $0.00 | This is to add a silver tooth to the calendar dial to mark a special date. Use a piece of scrap. I used aluminum. | ||||
14 | ||||||||||
15 | Steel Rod | |||||||||
16 | 1/16" OD tight tolerance stainless steel rod 6" length | McMaster-Carr | 88915K11 | $3.54 | 1 | $3.54 | Only a few inches needed. Brass also available. | |||
17 | 1/8" OD tight tolerance stainless steel rod 12" length | McMaster-Carr | 8934K24 | $7.84 | 2 | $15.68 | I think it's worth it to pay the extra for tight-tolerance on these rods - makes the press fits more reliable and saves some filing work later, but McMaster also sells a standard tolerance version of these rods for 1/3 the price. Brass also available, though I ended up liking the look of the mixed metals more. | |||
18 | ||||||||||
19 | Brass Tubes | |||||||||
20 | *Note from McMaster: Tubes with 0.014" and 0.45 mm wall thicknesses allow you to create telescoping tubes; each tube fits inside the next larger size. I went with imperial sizes because McMaster tends to have more inventory in inches than mm that would be compatible with the tubes. | |||||||||
21 | **These brass tubes are used widely and can often be found at the local hardware/craft store. Some interesting ideas about working this these tubes here: http://steampunkworkshop.com/making-joints-telescoping-brass-tubing-slip-fit-press-fit-detent-fit/ | |||||||||
22 | ***McMaster does not sell tubes in the 360 brass. The 260 brass has a slightly different color than the 360, but it is not very noticeable. | |||||||||
23 | 5/32" OD 0.128" ID brass tube | McMaster-Carr | 8859K21 | $2.12 | 1 | $2.12 | Only a few inches needed. | |||
24 | 3/16" OD 0.16" ID brass tube | McMaster-Carr | 8859K22 | $2.08 | 1 | $2.08 | Only a few inches needed. | |||
25 | 7/32" OD 0.191" ID brass tube | McMaster-Carr | 8859K23 | $2.61 | 1 | $2.61 | Only a few inches needed. | |||
26 | ||||||||||
27 | Aluminum Rod | |||||||||
28 | 3/8" OD 6061 aluminum rod 6" length | McMaster-Carr | 8974K24 | $1.25 | 1 | $1.25 | Only a few inches needed, used for central drive. A 1/4" rod would also work, but was too small for my lathe chuck. | |||
29 | ||||||||||
30 | Thrust Washers | |||||||||
31 | *I laser cut this stock to the correct washer sizes I needed. Double thick washers in the CAD model are made from two layers of washers. | |||||||||
32 | **These washers could be made out of anything (like standard metal washers), it's not critical to be low friction because the parts of this machine don't move that fast - laser cutting them myself was cheaper and easier for me because I could control the size. | |||||||||
33 | Delrin 0.031 strip film black 5ft | McMaster-Carr | 2638T21 | $3.55 | 1 | $3.55 | Only about a foot needed. | |||
34 | ||||||||||
35 | Bearings | |||||||||
36 | 10 pack bearing for 1/8" shaft with 1/4" OD and 7/64" height | Amazon | $10.89 | 2 | $21.78 | 10 | 13 | These bearings are $1 each on Amazon - since this isn't a high performance application, I don't care about quality too much. If Amazon is not an option for you, the bearings could be subbed with these (much more expensive) bearings from McMaster. | ||
37 | thrust bearing 0.5" shaft, 15/16" OD | McMaster-Carr | 5909K31 | $3.91 | 1 | $3.91 | ||||
38 | 0.032" washer for 0.5" thrust bearing | McMaster-Carr | 5909K44 | $1.23 | 1 | $1.23 | ||||
39 | ||||||||||
40 | Screws/Bolts | |||||||||
41 | *you should check out your local hardware store first to see if you can buy these screws individually, as very few per pack are used. | |||||||||
42 | M2 2mm stainless steel set screws | McMaster-Carr | 92015A011 | $7.50 | 1 | $7.50 | 25 | 1 | Tiny screw for the moon shaft collar, you could also file down a 4mm screw to achieve this. | |
43 | M2 4mm stainless steel set screws | McMaster-Carr | 92015A091 | $5.98 | 1 | $5.98 | 25 | 4 | Shaft collar sets screw for various parts. | |
44 | M2.5 4mm stainless steel set screws | McMaster-Carr | 92015A095 | $8.29 | 1 | $8.29 | 50 | 3 | Set screws for the two shaft collars that were turned on the lathe and the crank handle. M2 screws would work here too, but the M2.5 have more grip. | |
45 | M3 5mm stainless steel set screws | McMaster-Carr | 92015A103 | $8.68 | 1 | $8.68 | 50 | 1 | Used for the bottom mount on on the central axis, a smaller screw would work here (e.g. M2.5), but the M3 are better if you can swing it. | |
46 | M3 12mm stainless steel set screws | McMaster-Carr | 92015A107 | $12.20 | 1 | $12.20 | 50 | 3 | Used for crank adjustments (inside threaded inserts). This is an odd part bc it is so long, you can also use regular M3 bolt, but you'll have to figure out how long you need based on your setup | |
47 | 1/4-20 stainless set screw 3/8" length, 1/8" drive size | McMaster-Carr | 94355A535 | $4.66 | 1 | $4.66 | 25 | 1 | For sun attachment to central shaft. | |
48 | 6-32 brass set screw 1/8" length, 1/16" drive size | McMaster-Carr | 92991A142 | $4.94 | 1 | $4.94 | 50 | 2 | For moon and counterweight attachment. | |
49 | M3 threaded inserts | McMaster-Carr | 95807A490 | $2.73 | 3 | $8.19 | These screw into the wood base for adjustment mechanism for worm gear meshing alignment. I found needed to install these in a slightly larger hole than recommended on McMaster's website. | |||
50 | 2-56 1/4" decorative round head brass screws | McMaster-Carr | 92453A077 | $5.18 | 1 | $5.18 | 100 | 6 | McMaster's brass standoffs have a zinc coating, so I'm just using the smallest, cheapest metal standoffs available. For the final finish, I've added a bit of brass tube around the standoff. | |
51 | #2 1/4" decorative round head brass wood screws | McMaster-Carr | 92407A077 | $5.19 | 1 | $5.19 | 100 | 2 | For mounting the nameplate to the underside of the wood base. | |
52 | 1/8" diameter 3/8" tall 2-56 threaded aluminum standoffs | McMaster-Carr | 93330A252 | $1.09 | 3 | $3.27 | McMaster's brass standoffs have a zinc coating, so I'm just using the smallest, cheapest metal standoffs available. For the final finish, I've added a brass tube around the standoff. | |||
53 | M2 4mm brass slotted screws | McMaster-Carr | 96686A363 | $12.50 | 1 | $12.50 | 50 | 2 | For attaching the moon orbit cam to its mount (these will need to be shortened a little bit, but McMaster does not carry shorter lengths). I would have liked to use a decorative round head screw for this, but had trouble sourcing. | |
54 | #4 3/4" square drive stainless steel screws | McMaster-Carr | 94155A096 | $6.72 | 1 | $6.72 | 100 | 9 | 9 used for final assembly, also used about 20 screws to fixture 1/8" and 3/16" brass stock for machining. The important thing about these screws is that they will fit inside an 1/8" hole without damaging the surface finish. The square drive prevents stripping. | |
55 | 1.5" wood screws | McMaster-Carr | 90031A203 | $5.28 | 1 | $5.28 | 100 | ~5 | Only for fixturing, not used for final assembly. | |
56 | ||||||||||
57 | Dowel Pins | |||||||||
58 | *convenient but optional, these could be made from the 1/16" rod | |||||||||
59 | 1/16" stainless steel dowel pins 1/4" long | McMaster-Carr | 90145A415 | $9.91 | 1 | $9.91 | 100 | 5 | ||
60 | ||||||||||
61 | Base / Feet / Crank | |||||||||
62 | hardwood 5/4"x4"x30" | source locally | $15.00 | 1 | $15.00 | I used domestic cherry. | ||||
63 | 1/8" acrylic sheet 6" x 12" | McMaster-Carr | 8560K275 | $5.70 | 1 | $5.70 | Only a few square inches needed. Not visible from the outside, any color is fine. Also used for gear depthing gauge (see below). | |||
64 | 1/8 IPS unfinished brass finial | Grand Brass Lamp Parts | FI669 | $1.50 | 6 | $9.00 | Many other styles available, should be at least 1" in height. | |||
65 | 3/4" steel nipple 1/8 IPS | Grand Brass Lamp Parts | NI0-3/4X1/8 | $0.10 | 6 | $0.60 | ||||
66 | shaft collar 1/8" ID, 3/8" OD, 1/4" wide | McMaster-Carr | 9414T3 | $1.23 | 1 | $1.23 | ||||
67 | size 0 brass vienna clock crank | R&N Horological | T-S 941 | $5.19 | 1 | $5.19 | ||||
68 | 30:1 worm gear set 3mm diameter | Amazon | $17.28 | 1 | $17.28 | Order early, may ship from china. Will need to bore the worm wheel out to 1/4" ID. This 40:1 worm drive could also be nice, but 3D model will need to be adjusted. | ||||
69 | 3mm x 10mm x 0.3mm compression springs | Amazon | $6.99 | 1 | $6.99 | 10 | 6 | Stiffer option: 3mm x 10mm x 0.5mm compression spring | ||
70 | ||||||||||
71 | Earth | |||||||||
72 | *These inlaid beads vary a lot in quality, so take a close look at the pictures before ordering, I found a really nice one on AlphaStamps, but it doesn't look like they are selling this part anymore. | |||||||||
73 | **I liked the slightly abstract representation of Earth that I got from these handmade globe beads, but if you want something more realistic, you could have one 3D printed on Shapeways. | |||||||||
74 | 20mm earth beads | multiple sources (see note) | $12.00 | 1 | $12.00 | These can be sourced from Etsy, John F Allen, and ZnetShows (among other places), note that the quality varies greatly from source to source. | ||||
75 | ||||||||||
76 | Moon and counterweight | |||||||||
77 | 1/4" diameter, 6-32 threaded brass ball | Amazon | $7.54 | 1 | $7.54 | 10 | 2 | |||
78 | ||||||||||
79 | Sun | |||||||||
80 | 1" brass ball with 1/4"-20 threaded hole | McMaster-Carr | 60215K55 | $7.10 | 1 | $7.10 | ||||
81 | ||||||||||
82 | Magnet Fasteners (optional) | |||||||||
83 | In case you don't want to epoxy the calendar dial to the wood base, an option is to fasten it magnetically. | |||||||||
84 | 8mm x 3mm neodymium magnets (optional) | Amazon | $7.99 | 1 | $7.99 | 50 | 6 | |||
85 | 0.018" 430 stainless steel 0.5" x 12" strip (optional) | McMaster-Carr | 8457K44 | $0.99 | 1 | $0.99 | This is cut into small pieces and epoxied to the backside of the brass calendar plate to attach it to the magnets | |||
86 | ||||||||||
87 | Parts Total | $396.50 | <<< $100 dollars of that is for screws, of which you only use a few $ worth, I recommend buying screws individually to cut costs. | |||||||
88 | ||||||||||
89 | Tools | |||||||||
90 | 1/8" upcutter end mill (for metal) | Amazon | $22.50 | 1 | $22.50 | 5 | 1 | I would have liked to use a 2 flute cutter for better chip clearance, but these were really cheap and I've been happy with their performance. | ||
91 | 1/16" 2 flute upcutter end mill (>1/8" length of cut) (for metal) | Carbide Depot | CU 130007 | $8.79 | 1 | $8.79 | ||||
92 | 3/64" 2 flute upcutter end mill (1/8" length of cut) (for metal) | Carbide Depot | CU 129996 | $10.34 | 1 | $10.34 | Get extras, these are easy to break. | |||
93 | 1/32" 2 flute upcutter end mill (1/8" length of cut) (for metal) | Carbide Depot | CU 129985 | $12.14 | 2 | $24.28 | Get extras, these are very easy to break. | |||
94 | 30deg v-bit engraver | Amazon | $12.99 | 1 | $12.99 | 10 | 1 | The tip breaks when cutting into brass with these, but it still works. | ||
95 | 1/4" 2 flute downcutter end mill (for wood) | Amazon | $19.54 | 1 | $19.54 | |||||
96 | 1/4" 2 flute upcutter end mill (for wood) | $15.95 | 1 | $15.95 | ||||||
97 | 1/8" 2 flute downcutter end mill (for wood) | Amazon | $18.04 | 1 | $18.04 | |||||
98 | 1/4" 2 flute ball nose end mill (for wood) | Amazon | $15.43 | 1 | $15.43 | |||||
99 | center drill set | source locally | $13.99 | 1 | $13.99 | I have this metric one because I tend to use metric screws in other projects, exact sizes don't really matter. | ||||
100 | fractional drill index (increments of 1/64) | McMaster | 8907A12 | $31.13 | 1 | $31.13 | At some point I'd like to modify this set to work better for brass. |