Wiki source code of Humanoid Biped Arm Pair Assembly Guide
Last modified by Eric Nantel on 2026/04/06 13:45
Show last authors
| 1 | {{html wiki="false" clean="false"}} |
| 2 | <style> |
| 3 | .asm { font-family: Verdana, Helvetica, sans-serif; font-size: 14px; max-width: 960px; } |
| 4 | .asm-step { background: #fff; border: 1px solid #ddd; border-radius: 8px; margin-bottom: 1.5rem; overflow: hidden; } |
| 5 | .asm-step-header { background: #F5A800; display: flex; align-items: stretch; justify-content: space-between; } |
| 6 | .asm-step-name { padding: 0.6rem 1rem; font-weight: bold; font-size: 15px; color: #2C1A00; } |
| 7 | .asm-step-num { background: #1a1a1a; color: white; padding: 0.6rem 1.1rem; font-weight: bold; font-size: 15px; display: flex; align-items: center; white-space: nowrap; } |
| 8 | .asm-step-body { display: flex; flex-wrap: wrap; gap: 1.25rem; padding: 1rem; align-items: flex-start; } |
| 9 | .asm-step-text { flex: 1 1 250px; font-size: 13px; line-height: 1.6; } |
| 10 | .asm-step-figure { flex: 0 1 280px; text-align: center; } |
| 11 | .asm-step-figure img { max-width: 100%; height: auto; border: 1px solid #ccc; border-radius: 4px; } |
| 12 | .asm-step-figure span { display: block; font-size: 12px; color: #666; margin-top: 0.3rem; } |
| 13 | .asm-figures { display: flex; flex-wrap: wrap; gap: 0.75rem; } |
| 14 | .asm-parts { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 0.75rem; align-items: stretch; } |
| 15 | .asm-part { border: 1px solid #ddd; border-radius: 6px; overflow: hidden; flex: 0 1 150px; display: flex; flex-direction: column; } |
| 16 | .asm-part-info { background: #FFF3D6; padding: 0.4rem 0.6rem; border-bottom: 1px solid #F5A800; flex: 1; } |
| 17 | .asm-part-qty { font-size: 12px; font-weight: bold; color: #7A4F00; } |
| 18 | .asm-part-name { font-size: 11px; color: #5A3800; line-height: 1.4; margin-top: 2px; } |
| 19 | .asm-part-img { display: flex; align-items: center; justify-content: center; padding: 0.6rem; min-height: 100px; background: #fff; } |
| 20 | .asm-part-img img { max-width: 120px; max-height: 90px; height: auto; display: block; } |
| 21 | .asm-warning { color: #c00; font-weight: bold; } |
| 22 | .asm h1 { font-size: 18px; margin-bottom: 0.25rem; } |
| 23 | </style> |
| 24 | |
| 25 | <div class="asm"> |
| 26 | |
| 27 | <!-- Header --> |
| 28 | <div style="padding: 0.5rem 0 1rem 0; display:flex; flex-wrap:wrap; gap:1.5rem; align-items:flex-start;"> |
| 29 | <div style="flex:1 1 300px;"> |
| 30 | <h1 class="asm">Humanoid Biped Arm Pair Assembly Guide</h1> |
| 31 | <p><b>Updated August 30, 2007</b></p> |
| 32 | <p><b>Hardware:</b> 3x Multi-Purpose Servo Bracket Two Pack (ASB-04) · 1x "L" Connector Bracket Two Pack (ASB-06) · 1x "C" Servo Bracket w/ Ball Bearings Two Pack (ASB-09) · 1x Offset Servo Bracket w/ Ball Bearings Two Pack (ASB-11) · 1x Aluminum Tubing Connector Hub pair (HUB-08) · 2x Aluminum Tubing 3.0" (AT-02) · 1x Rubber End Cap .500" x 1.50" Pair (REC-06) · 6x HS-5645 Digital Standard Servo (S5645MG)</p> |
| 33 | <p><b>Goal:</b> Assemble a pair of humanoid biped arms using servo brackets, aluminum tubing, and a Little Grip.</p> |
| 34 | <p><b>Notes:</b> This guide covers one arm for the robot's right side. Repeat all steps as a mirror image for the left side. This is only an example — there are countless other configurations with fewer degrees of freedom, no tubing, etc.</p> |
| 35 | </div> |
| 36 | <div style="text-align:center; flex:0 1 280px;"> |
| 37 | <img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/servo-erector-set-robots-kits/ses-v1-robots/ses-v1-bipeds/humanoid-biped-arm-pair/WebHome/ba00.jpg" style="max-width:100%; border:1px solid #ccc; border-radius:4px;"> |
| 38 | <p style="font-size:12px; color:#666; margin-top:0.3rem;"><b>Humanoid Biped with Arms.</b></p> |
| 39 | </div> |
| 40 | </div> |
| 41 | |
| 42 | <!-- Step 1 --> |
| 43 | <div class="asm-step"> |
| 44 | <div class="asm-step-header"> |
| 45 | <div class="asm-step-name">Arm — Connect Two Multi-Purpose Brackets</div> |
| 46 | <div class="asm-step-num">Step 1 / 9</div> |
| 47 | </div> |
| 48 | <div class="asm-step-body"> |
| 49 | <div class="asm-step-text"> |
| 50 | <p>Attach two multi-purpose servo brackets together as shown using two 2-56 x .250" screws and 2-56 nuts.</p> |
| 51 | <div class="asm-parts"> |
| 52 | <div class="asm-part"> |
| 53 | <div class="asm-part-info"><div class="asm-part-qty">2x</div><div class="asm-part-name">2-56 x .250" Phillips screw</div></div> |
| 54 | <div class="asm-part-img"><img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/servo-erector-set-robots-kits/ses-v1-robots/ses-v1-bipeds/humanoid-biped-arm-pair/WebHome/256025ph.GIF"></div> |
| 55 | </div> |
| 56 | <div class="asm-part"> |
| 57 | <div class="asm-part-info"><div class="asm-part-qty">2x</div><div class="asm-part-name">2-56 nut</div></div> |
| 58 | <div class="asm-part-img"><img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/servo-erector-set-robots-kits/ses-v1-robots/ses-v1-bipeds/humanoid-biped-arm-pair/WebHome/256zpn.GIF"></div> |
| 59 | </div> |
| 60 | </div> |
| 61 | </div> |
| 62 | <div class="asm-step-figure"> |
| 63 | <img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/servo-erector-set-robots-kits/ses-v1-robots/ses-v1-bipeds/humanoid-biped-arm-pair/WebHome/ba01.jpg"> |
| 64 | <span>Figure 1.</span> |
| 65 | </div> |
| 66 | </div> |
| 67 | </div> |
| 68 | |
| 69 | <!-- Step 2 --> |
| 70 | <div class="asm-step"> |
| 71 | <div class="asm-step-header"> |
| 72 | <div class="asm-step-name">Arm — Connect Offset "C" Bracket to Multi-Purpose Bracket</div> |
| 73 | <div class="asm-step-num">Step 2 / 9</div> |
| 74 | </div> |
| 75 | <div class="asm-step-body"> |
| 76 | <div class="asm-step-text"> |
| 77 | <p>Connect the offset "C" bracket to a multi-purpose bracket as shown. Refer to Figure 2-1 for ball bearing detail.</p> |
| 78 | <div style="margin-top:0.75rem;"> |
| 79 | <img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/servo-erector-set-robots-kits/ses-v1-robots/ses-v1-bipeds/humanoid-biped-arm-pair/WebHome/ballb01.GIF" style="max-width:100%; border:1px solid #ccc; border-radius:4px;"> |
| 80 | <p style="font-size:12px; color:#666; margin-top:0.3rem;">Figure 2-1 — Ball bearing detail.</p> |
| 81 | </div> |
| 82 | </div> |
| 83 | <div class="asm-step-figure"> |
| 84 | <img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/servo-erector-set-robots-kits/ses-v1-robots/ses-v1-bipeds/humanoid-biped-arm-pair/WebHome/ba02.jpg"> |
| 85 | <span>Figure 2-2.</span> |
| 86 | </div> |
| 87 | </div> |
| 88 | </div> |
| 89 | |
| 90 | <!-- Step 3 --> |
| 91 | <div class="asm-step"> |
| 92 | <div class="asm-step-header"> |
| 93 | <div class="asm-step-name">Arm — Install Two Servos</div> |
| 94 | <div class="asm-step-num">Step 3 / 9</div> |
| 95 | </div> |
| 96 | <div class="asm-step-body"> |
| 97 | <div class="asm-step-text"> |
| 98 | <p>Attach two servos as shown using the included 3mm hardware and two #2 tapping screws each. Rivet fasteners (NSRF-01, sold separately) can be used for quick prototype assembly.</p> |
| 99 | <div class="asm-parts"> |
| 100 | <div class="asm-part"> |
| 101 | <div class="asm-part-info"><div class="asm-part-qty">8x</div><div class="asm-part-name">3mm servo mounting hardware</div></div> |
| 102 | <div class="asm-part-img"><img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/servo-erector-set-robots-kits/ses-v1-robots/ses-v1-bipeds/humanoid-biped-arm-pair/WebHome/srvhdw.GIF"></div> |
| 103 | </div> |
| 104 | <div class="asm-part"> |
| 105 | <div class="asm-part-info"><div class="asm-part-qty">2x</div><div class="asm-part-name">#2 x .250" tapping screw</div></div> |
| 106 | <div class="asm-part-img"><img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/servo-erector-set-robots-kits/ses-v1-robots/ses-v1-bipeds/humanoid-biped-arm-pair/WebHome/2250phts.GIF"></div> |
| 107 | </div> |
| 108 | </div> |
| 109 | </div> |
| 110 | <div class="asm-step-figure"> |
| 111 | <img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/servo-erector-set-robots-kits/ses-v1-robots/ses-v1-bipeds/humanoid-biped-arm-pair/WebHome/ba03.jpg"> |
| 112 | <span>Figure 3.</span> |
| 113 | </div> |
| 114 | </div> |
| 115 | </div> |
| 116 | |
| 117 | <!-- Step 4 --> |
| 118 | <div class="asm-step"> |
| 119 | <div class="asm-step-header"> |
| 120 | <div class="asm-step-name">Arm — Attach "C" Bracket to Servo</div> |
| 121 | <div class="asm-step-num">Step 4 / 9</div> |
| 122 | </div> |
| 123 | <div class="asm-step-body"> |
| 124 | <div class="asm-step-text"> |
| 125 | <p>Attach a "C" bracket as shown using four #2 tapping screws.</p> |
| 126 | <div class="asm-parts"> |
| 127 | <div class="asm-part"> |
| 128 | <div class="asm-part-info"><div class="asm-part-qty">4x</div><div class="asm-part-name">#2 x .250" tapping screw</div></div> |
| 129 | <div class="asm-part-img"><img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/servo-erector-set-robots-kits/ses-v1-robots/ses-v1-bipeds/humanoid-biped-arm-pair/WebHome/2250phts.GIF"></div> |
| 130 | </div> |
| 131 | </div> |
| 132 | </div> |
| 133 | <div class="asm-step-figure"> |
| 134 | <img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/servo-erector-set-robots-kits/ses-v1-robots/ses-v1-bipeds/humanoid-biped-arm-pair/WebHome/ba04.jpg"> |
| 135 | <span>Figure 4.</span> |
| 136 | </div> |
| 137 | </div> |
| 138 | </div> |
| 139 | |
| 140 | <!-- Step 5 --> |
| 141 | <div class="asm-step"> |
| 142 | <div class="asm-step-header"> |
| 143 | <div class="asm-step-name">Arm — Connect "C" Bracket to Multi-Purpose Bracket</div> |
| 144 | <div class="asm-step-num">Step 5 / 9</div> |
| 145 | </div> |
| 146 | <div class="asm-step-body"> |
| 147 | <div class="asm-step-text"> |
| 148 | <p>Connect the "C" bracket to a multi-purpose bracket as shown. Refer to Figure 5-1 for ball bearing detail.</p> |
| 149 | <div style="margin-top:0.75rem;"> |
| 150 | <img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/servo-erector-set-robots-kits/ses-v1-robots/ses-v1-bipeds/humanoid-biped-arm-pair/WebHome/ballb01.GIF" style="max-width:100%; border:1px solid #ccc; border-radius:4px;"> |
| 151 | <p style="font-size:12px; color:#666; margin-top:0.3rem;">Figure 5-1 — Ball bearing detail.</p> |
| 152 | </div> |
| 153 | </div> |
| 154 | <div class="asm-step-figure"> |
| 155 | <img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/servo-erector-set-robots-kits/ses-v1-robots/ses-v1-bipeds/humanoid-biped-arm-pair/WebHome/ba05.jpg"> |
| 156 | <span>Figure 5-2.</span> |
| 157 | </div> |
| 158 | </div> |
| 159 | </div> |
| 160 | |
| 161 | <!-- Step 6 --> |
| 162 | <div class="asm-step"> |
| 163 | <div class="asm-step-header"> |
| 164 | <div class="asm-step-name">Arm — Attach Tubing Hub and "L" Bracket</div> |
| 165 | <div class="asm-step-num">Step 6 / 9</div> |
| 166 | </div> |
| 167 | <div class="asm-step-body"> |
| 168 | <div class="asm-step-text"> |
| 169 | <p>Attach a tubing connector hub to an "L" connector bracket, then attach the "L" bracket to the multi-purpose bracket as shown using four 2-56 x .250" screws and 2-56 nuts.</p> |
| 170 | <div class="asm-parts"> |
| 171 | <div class="asm-part"> |
| 172 | <div class="asm-part-info"><div class="asm-part-qty">4x</div><div class="asm-part-name">2-56 x .250" Phillips screw</div></div> |
| 173 | <div class="asm-part-img"><img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/servo-erector-set-robots-kits/ses-v1-robots/ses-v1-bipeds/humanoid-biped-arm-pair/WebHome/256025ph.GIF"></div> |
| 174 | </div> |
| 175 | <div class="asm-part"> |
| 176 | <div class="asm-part-info"><div class="asm-part-qty">4x</div><div class="asm-part-name">2-56 nut</div></div> |
| 177 | <div class="asm-part-img"><img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/servo-erector-set-robots-kits/ses-v1-robots/ses-v1-bipeds/humanoid-biped-arm-pair/WebHome/256zpn.GIF"></div> |
| 178 | </div> |
| 179 | </div> |
| 180 | </div> |
| 181 | <div class="asm-step-figure"> |
| 182 | <img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/servo-erector-set-robots-kits/ses-v1-robots/ses-v1-bipeds/humanoid-biped-arm-pair/WebHome/ba06.jpg"> |
| 183 | <span>Figure 6.</span> |
| 184 | </div> |
| 185 | </div> |
| 186 | </div> |
| 187 | |
| 188 | <!-- Step 7 --> |
| 189 | <div class="asm-step"> |
| 190 | <div class="asm-step-header"> |
| 191 | <div class="asm-step-name">Arm — Install Third Servo (Elbow)</div> |
| 192 | <div class="asm-step-num">Step 7 / 9</div> |
| 193 | </div> |
| 194 | <div class="asm-step-body"> |
| 195 | <div class="asm-step-text"> |
| 196 | <p>Attach a servo as shown using the included 3mm hardware and two #2 tapping screws. Rivet fasteners (NSRF-01, sold separately) can be used for quick prototype assembly.</p> |
| 197 | <div class="asm-parts"> |
| 198 | <div class="asm-part"> |
| 199 | <div class="asm-part-info"><div class="asm-part-qty">4x</div><div class="asm-part-name">3mm servo mounting hardware</div></div> |
| 200 | <div class="asm-part-img"><img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/servo-erector-set-robots-kits/ses-v1-robots/ses-v1-bipeds/humanoid-biped-arm-pair/WebHome/srvhdw.GIF"></div> |
| 201 | </div> |
| 202 | <div class="asm-part"> |
| 203 | <div class="asm-part-info"><div class="asm-part-qty">2x</div><div class="asm-part-name">#2 x .250" tapping screw</div></div> |
| 204 | <div class="asm-part-img"><img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/servo-erector-set-robots-kits/ses-v1-robots/ses-v1-bipeds/humanoid-biped-arm-pair/WebHome/2250phts.GIF"></div> |
| 205 | </div> |
| 206 | </div> |
| 207 | </div> |
| 208 | <div class="asm-step-figure"> |
| 209 | <img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/servo-erector-set-robots-kits/ses-v1-robots/ses-v1-bipeds/humanoid-biped-arm-pair/WebHome/ba07.jpg"> |
| 210 | <span>Figure 7.</span> |
| 211 | </div> |
| 212 | </div> |
| 213 | </div> |
| 214 | |
| 215 | <!-- Step 8 --> |
| 216 | <div class="asm-step"> |
| 217 | <div class="asm-step-header"> |
| 218 | <div class="asm-step-name">Arm — Attach Forearm Tube & End Cap</div> |
| 219 | <div class="asm-step-num">Step 8 / 9</div> |
| 220 | </div> |
| 221 | <div class="asm-step-body"> |
| 222 | <div class="asm-step-text"> |
| 223 | <p>Connect the 3.0" aluminum tube to the hub using a 4-40 x .250" hex socket screw. Push the rubber end cap onto the free end of the tube.</p> |
| 224 | <div class="asm-parts"> |
| 225 | <div class="asm-part"> |
| 226 | <div class="asm-part-info"><div class="asm-part-qty">1x</div><div class="asm-part-name">4-40 x .250" hex socket screw</div></div> |
| 227 | <div class="asm-part-img"><img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/servo-erector-set-robots-kits/ses-v1-robots/ses-v1-bipeds/humanoid-biped-arm-pair/WebHome/4250hscs.GIF"></div> |
| 228 | </div> |
| 229 | </div> |
| 230 | </div> |
| 231 | <div class="asm-step-figure"> |
| 232 | <img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/servo-erector-set-robots-kits/ses-v1-robots/ses-v1-bipeds/humanoid-biped-arm-pair/WebHome/ba08.jpg"> |
| 233 | <span>Figure 8.</span> |
| 234 | </div> |
| 235 | </div> |
| 236 | </div> |
| 237 | |
| 238 | <!-- Step 9 --> |
| 239 | <div class="asm-step"> |
| 240 | <div class="asm-step-header"> |
| 241 | <div class="asm-step-name">Arm — Attach Offset "C" Bracket to Shoulder Servo</div> |
| 242 | <div class="asm-step-num">Step 9 / 9</div> |
| 243 | </div> |
| 244 | <div class="asm-step-body"> |
| 245 | <div class="asm-step-text"> |
| 246 | <p>Attach the offset "C" bracket to the shoulder servo as shown using two #2 tapping screws. This completes one arm — repeat all steps as a mirror image for the left arm.</p> |
| 247 | <div class="asm-parts"> |
| 248 | <div class="asm-part"> |
| 249 | <div class="asm-part-info"><div class="asm-part-qty">2x</div><div class="asm-part-name">#2 x .250" tapping screw</div></div> |
| 250 | <div class="asm-part-img"><img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/servo-erector-set-robots-kits/ses-v1-robots/ses-v1-bipeds/humanoid-biped-arm-pair/WebHome/2250phts.GIF"></div> |
| 251 | </div> |
| 252 | </div> |
| 253 | </div> |
| 254 | <div class="asm-step-figure"> |
| 255 | <img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/servo-erector-set-robots-kits/ses-v1-robots/ses-v1-bipeds/humanoid-biped-arm-pair/WebHome/ba00.jpg"> |
| 256 | <span>Figure 9 (completed arm).</span> |
| 257 | </div> |
| 258 | </div> |
| 259 | </div> |
| 260 | |
| 261 | </div> |
| 262 | {{/html}} |

