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a18275e3 MR |
1 | Reprap Wilson Assembly Guide |
2 | Written by Martin Rice <mrice411@gmail.com> | |
3 | ||
4 | 1. Assemble the Y axis (part 1) | |
5 | ||
6 | 1.1 Gather the following parts | |
7 | ||
8 | a. The two M10 threaded rods | |
9 | b. The Y axis smooth rods | |
10 | c. The plastic Y end pieces (2) | |
11 | d. The two plastic frame brace supports | |
12 | e. 12 M10 nuts and washers | |
13 | f. Four linear bearings (LM8UU) | |
14 | ||
15 | 1.2 Hardware Assembly | |
16 | ||
17 | * Slide a brace support onto each threaded rod. On each side of the | |
18 | supports, put a washer, a nut, another nut and another washer (in | |
19 | that order). | |
20 | * Next, slide two two Y end pieces over the ends of the threaded rods. | |
21 | Place a washer then nut on each end. | |
22 | ||
23 | 1.3 Tightening the Y axis | |
24 | ||
25 | * Start at one end (either Y motor or Y idler end) and tighten the two | |
26 | nuts against the end so that the threaded rod is flush with the outside | |
27 | of the nut. Tighten both sides of the first end while everything else | |
28 | is loose along the threaded rods. Use two wrenches to tighten the nuts | |
29 | against the end until snug (tight, but don't compress enough to deform | |
30 | or break the plastic). | |
31 | * Place two linear bearings on each Y axis smooth rod. | |
32 | * Next, with the other Y end still loosely attached, place the two Y axis | |
33 | smooth rods across the top and fit into the grooves along the top of | |
34 | the ends. | |
35 | * Press down on the corners (not in the middle of the rods!) to seat the | |
36 | rods into the Y ends. | |
37 | * Tighten one corner of the remaining end. | |
38 | * Now take a moment to measure with a ruler between the end posts of the | |
39 | tightened side. (355mm for reference). | |
40 | * Flip the assembly around and repeat the measurement as you tighten the | |
41 | remaining corner (tighten it just a little first, then measure. If the | |
42 | distance is a little less than the first side, tighten the inner nut | |
43 | outward toward the outer nut, if the distance is a little more than the | |
44 | first side, then tighten the outer nut toward the inner one. Try to get | |
45 | the two sides as close to the same distance as possible. This will help | |
46 | ensure your y axis bearings don't experience any binding forces). | |
47 | * Repeat the measurement on the first side and check that all corners are | |
48 | nice and snug. Take your time on this step, it may require a couple | |
49 | iterations to get the axis square. | |
50 | ||
51 | 1.4 Prep the Print Bed | |
52 | ||
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53 | While the Y axis assembly is free, it is a good time to prepare the print |
54 | bed which you will attach later. | |
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55 | |
56 | Gather the following materials | |
57 | ||
58 | a. The Y axis assembly you just completed | |
59 | b. The wood print bed support | |
60 | c. The heat bed | |
61 | d. The four linear bearing holders | |
62 | e. Eight miniature zip ties | |
63 | ||
64 | ||
65 | * Place the heat bed circuitboard over the wood bed and mark the four | |
66 | corner locations with a pencil. | |
67 | * Put the heat bed circuitboard aside and place the four linear bearing | |
68 | holders over the linear bearings along the Y axis rods. | |
69 | * Turn the Y axis assembly over so that the smooth rods (and bearing | |
70 | holders) are against the wood print bed surface. | |
71 | * Align the front edge of the two bearing holders nearest the Y end idler | |
72 | with a line that is 80mm from the front edge of the bed. | |
73 | * Align the back edge of the two bearing holders nearest the Y end motor | |
74 | mount with a line that is approx 10mm from the back edge of the bed. | |
75 | * Mark all the holes for the bearing holders with a pencil. | |
76 | * Remove the wood print bed and drill all the holes you marked with a 5mm | |
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77 | drill bit. (You want the holes a little over-sized so that there is |
78 | some room for the screws to "float" when you attach the bed). | |
79 | * Attach the linear bearing holders to the Y axis linear bearings with | |
80 | zip ties. | |
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81 | |
82 | Set the prepared wood print bed aside. | |
83 | ||
84 | 2. Assemble the Frame (part 1) | |
85 | ||
86 | 2.1 Gather the following parts | |
87 | ||
88 | a. The two side pieces of 2020 aluminum extrusion (the longer ones, | |
89 | generally) | |
90 | b. One of the two horizontal pieces of 2020 aluminum extrusion (the | |
91 | shorter ones, generally) | |
92 | c. 22 T-slot nuts | |
93 | d. 14 M5 x 8mm screws | |
94 | e. The plastic Z motor holders (2) | |
95 | f. The plastic rear frame brackets (2) | |
96 | ||
97 | 2.2 Hardware Assembly | |
98 | ||
99 | * Slide 6 T-nuts into one side of the shorter extrusion (this wlll be the | |
100 | bottom piece of the frame). | |
101 | * Turn the extrusion over (being careful not to let the nuts slide out | |
102 | that you just put in) and slide 8 more nuts into the opposite side that | |
103 | you begain with. | |
104 | * Place the two remaining extrusions to the sides of the first, and slide | |
105 | two T nuts into each on the side facing up. | |
106 | * Get the two corner braces and place one over each corner. Line up the | |
107 | two nuts on each extrusion and attach the braces with a total of 8 M5 | |
108 | screws. Note that the longer extrusions (the "sides" of the frame) | |
109 | should cover the ends of the bottom extrusion piece. Leave the screws | |
110 | loose until all 8 are started. Stand the frame "upright" to ensure the | |
111 | sides are slid down flush with the bottom and alternately tighten until | |
112 | all the screws are tight. | |
113 | * Rotate the frame so the other side is facing you and put it back flat | |
114 | on your work surface. | |
115 | * Slide two more T nuts into each side piece and attach the motor mounts | |
116 | the same way you did the rear brackets, using 6 more M5 screws. | |
117 | * You should have four T nuts sliding around between the lower corners, | |
118 | which will be used to attach the Y axis to the frame in the next step. | |
119 | ||
120 | 3. Mount the Y axis to the frame | |
121 | ||
122 | 3.1 The following parts are used during this step: | |
123 | ||
124 | a. The partially-assembled Y axis from step 1. | |
125 | b. The partially assembled frame from step 2. | |
126 | c. Eight M5 x 8mm screws | |
127 | ||
128 | 3.2 Mounting the Y axis | |
129 | ||
130 | * Place the Y axis over the frame so that the Y motor end is toward the | |
131 | rear, and the Z motor brackets are toward the front. | |
132 | * Slide the Y axis along the threaded rods so that there is ** 135mm ** | |
133 | from the Y motor end and the frame braces | |
134 | * Tighten the nuts on the first side finger-tight against the frame brace | |
135 | then turn the assembly around and repeat on the other side. Measure a | |
136 | couple times to make sure the distance from the y motor end to the frame | |
137 | braces is the same on each corner. Next slide the Y axis assembly left | |
138 | or right along the lower frame extrusion so that there is ** 50mm ** | |
139 | from the upright extrusion to the inner edge of the frame brace on the | |
140 | "left" side of the printer (as viewed with the Y axis idler toward you). | |
141 | * Tighten the frame braces using 8 M5 screws into the T slot nuts that | |
142 | are alread in the lower frame extrusion. Finish tightening the nuts of | |
143 | the threaded rod against the braces, double-checking that the distance | |
144 | from the Y end to the braces is the same on each side. A convenient | |
145 | place to measure this after the nuts are snug is from the inside of the | |
146 | nuts (approx 116mm). | |
147 | ||
148 | 4. Assemble the X axis (part 1) | |
149 | ||
150 | 4.1 Gather the following parts: | |
151 | ||
152 | a. The two plastic X end pieces ("motor" and "idler") | |
153 | b. Eight linear bearings (LM8UU) | |
154 | c. The two X axis smooth rods | |
155 | d. Two M5 nuts | |
156 | ||
157 | 4.2 Hardware Assembly | |
158 | ||
159 | * Press two linear bearings into each X end. | |
160 | * Using pliers, gently press an M5 nut into the provided insert in each | |
161 | end. | |
162 | * Place two linear bearings on each of the smooth rods. | |
163 | * Press each X end onto the pair of smooth rods, being sure to orient | |
164 | them so that the M5 nuts are on the same side of the rods. | |
165 | ||
166 | 5. Assembling the frame (part 2) | |
167 | ||
168 | 5.1 Gather the following: | |
169 | ||
170 | a. The two upper Z axis mounts. | |
171 | b. The remaining piece of aluminum extrusion (the top bar) | |
172 | c. Four t-slot nuts | |
173 | d. Five more t-slot nuts if you are going to use the filament holder | |
174 | and SMART electronics mount. | |
175 | e. Four M5 x 8mm screws | |
176 | ||
177 | 5.2 | |
178 | ||
179 | * Insert two t-slot nuts into the top side of the aluminum extrusion. | |
180 | * If you will be using the filament holder, rotate the extrusion 90 | |
181 | degrees and insert two more t-slot nuts into the top side. | |
182 | * Insert the remaining t-slot nuts into the side opposite from the one | |
183 | you started with. | |
184 | ||
185 | 5.3 | |
186 | ||
187 | * Attach the upper Z axis mounts to the ends of the extrusion, tightening | |
188 | the M5 nuts just until snug. Be sure to keep the two t slot nuts for | |
189 | the filament holder on the "top" and the t slot nuts for the SMART | |
190 | electronics mount and filament holder to the back (side away from the | |
191 | rod holders). | |
192 | ||
193 | 6. Mounting the X axis to the Z axis | |
194 | ||
195 | 6.1 Gather the following | |
196 | ||
197 | a. The partialy assembled frame from step 3. | |
198 | b. The X axis assembly from step 4. | |
199 | c. The upper frame assembly from step 5. | |
200 | d. The remaining two smooth rods | |
201 | e. The Z axis threaded rods (M5) | |
202 | f. Two NEMA17 stepper motors | |
203 | g. Eight M3 x 10mm screws (washers recommended) | |
204 | h. Two Z axis couplers (either 5mm x 5mm couplers or 3/16" vinyl tubing) | |
205 | i. Eight t-slot nuts | |
206 | j. Eight M5 x 8mm screws | |
207 | ||
208 | 6.2 Mounting the X axis onto the frame. | |
209 | ||
210 | * Attach the two Z axis motors to the motor mounts using four M3 x 10mm | |
211 | screws each. Place the z axis couplers on each motor shaft. | |
212 | * Press each Z axis smooth rod firmly down into the rod holder of each motor | |
213 | mount, being careful to keep the rods straight up and down to avoid | |
214 | breaking the mounts. | |
215 | * Gently slide the X axis assembly down over the Z axis rods. If the linear | |
216 | bearings in each X end do not align with the Z axis rods, remove the X | |
217 | axis assembly and gently push/pull the two ends to get the distance right. | |
218 | The motor end of the X axis assembly should be on your left (with the Y | |
219 | idler end toward you). | |
220 | * Insert two t-slot nuts into both the front and back sides of each end (8 | |
221 | total). You may want to hold the frame assembly on your lap with the | |
222 | upright extensions horizontally at the point, so that the t slot nuts | |
223 | don't slide down to the botttom of the frame. If they do, simply place | |
224 | your hands over the tops of the extrusions, keeping the z axis smooth | |
225 | rods supported, and tip the assembly over to slide the nuts back toward | |
226 | the top. | |
227 | * Place the upper frame assembly on the frame. Fit the tops of the z axis | |
228 | smooth rods into the rod holders. | |
229 | * Secure the top of the frame using 8 M5 x 8mm screws. Be sure to press | |
230 | the top of the frame down securely onto the vertical extrusions, and | |
231 | then press inward on each top corner to seat the upper extrusion against | |
232 | the sides. | |
233 | * With the X axis assembly resting at the bottom of the Z axis smooth | |
234 | rods, thread the z axis threaded rods down through the nut in each X | |
235 | end until the threaded rods rest against the Z axis motor shafts. | |
236 | * Tighten the z axis couplers. | |
237 | ||
4671e961 | 238 | 7. Completing the Frame Assembly |
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240 | 7.1 Mount X and Y motors |
241 | ||
242 | * In addition to the frame from the previous step, gather the following: | |
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243 | |
244 | a. Two NEMA17 stepper motors | |
245 | b. Two belt pulleys | |
246 | c. The two idler bearings and mounts | |
247 | d. Three M3 x 10mm screws | |
248 | e. Three M3 x 14mm screws | |
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249 | f. Two screws with lock nuts for mounting the belt idlers (probably |
250 | M3 x 25mm) | |
251 | ||
252 | * Mount the motors to the X and Y axis motor mounts using three screws | |
253 | each. | |
254 | * Fit a pulley on each motor shaft and tighten the grub screws to keep | |
255 | them secure. | |
256 | * Snap an idler bearing into each pair of plastic bearing guides, then | |
257 | attach the idlers to the opposite ends of the X and Y axis from where | |
258 | you attached the motors. Don't overtighten the screws that hold on | |
259 | the idlers. | |
260 | ||
261 | 7.2 Attach print bed | |
a18275e3 | 262 | |
4671e961 | 263 | * You will need: |
a18275e3 | 264 | |
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265 | a. The print bed you prepared earlier. |
266 | b. Eight M3 x 14mm screws and an equal number of M3 nuts and washers. | |
a18275e3 | 267 | |
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268 | * Mount the print bed to the Y axis bearing holders. The washer should |
269 | go on the screw first, which should go downward through the wood print | |
270 | bed and bearing holder, and secured with a nut. Attach each screw only | |
271 | loosely first, then check that the bed slides smoothly back and forth | |
272 | along the Y axis. Tighten the nuts a little at a time until secure. | |
273 | ||
274 | 7.3 Attach the X carriage. | |
275 | ||
276 | * You will need: | |
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277 | |
278 | a. The printed X carriage | |
279 | b. Eight miniature zip ties | |
280 | ||
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281 | * Attach the X carriage with the belt guide "up" and with the flat |
282 | surface (where you will attach the extruder) toward the front of the | |
283 | printer (the Y idler end). | |
284 | ||
285 | 8. Attach Belts | |
286 | ||
287 | * You will need: | |
288 | ||
289 | a. The X axis drive belt. | |
290 | b. The Y axis drive belt. | |
291 | c. The Y belt holder. | |
292 | d. Two M3 x 14mm screws and nuts. | |
293 | e. 8 Miniature zip ties. | |
294 | ||
295 | * Thread the X axis belt into place and secure with four zip ties (two | |
296 | on each side of the extruder, trimmed short after tight). | |
297 | * Turn the printer over or have a friend hold it upside down, being | |
298 | careful not to lift by or put pressure on the X axis rods. | |
299 | * Thread the Y axis belt into place. Hold the belt tight and use as a | |
300 | guide for placing the Y belt holder. The leading edge of the belt | |
301 | holder should be approximately in the middle of the wood print bed. | |
302 | * Mark the holes for the Y belt holder, then set the holder and belt | |
303 | aside and drill the two holes with a 4-5mm hand drill. | |
304 | ||
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305 | |
306 |