# The Humble Velocipede ## Overview This guide will take you through the process of building your own Humble Velocipede. ![](https://cdn-learn.adafruit.com/assets/assets/000/034/677/medium800/adafruit_products__MG_3411.jpg?1470972107) The Humble Velocipede is a playful desktop toy designed to scuttle over countertops and coffee tables. The design of this toy was inspired by Theo Jansen's Strandbeest creatures, and combines 3D printing with some custom hardware to put the beauty of Jansen's walking mechanism in your hands. ![](https://cdn-learn.adafruit.com/assets/assets/000/044/660/medium800thumb/adafruit_products_IMG_4136.jpg?1501646374) The beauty of this design is that anyone can find joy in the animal-like movement of the walking mechanism. Unlike other versions, this particular design employs five parallel sets of legs. The odd number of legs breaks up the pattern of coordination, rendering its motion even more visually appealing. ![](https://cdn-learn.adafruit.com/assets/assets/000/034/693/medium800thumb/adafruit_products_IMG_2960.jpg?1471021867) Read on to learn how to build your own! ![](https://cdn-learn.adafruit.com/assets/assets/000/042/345/medium800thumb/adafruit_products_output_socNmt.jpg?1496627887) # The Humble Velocipede ## What's in the Kit This Crankshaft Kit contains only the essential components you need to build your own Humble Velocipede. Crankshaft kits are available for purchase [here](https://www.etsy.com/listing/826269268/humble-velocipede-crankshaft-kit) Ligament kits are also available for purchase [here](https://www.adafruit.com/product/3652) ![](https://cdn-learn.adafruit.com/assets/assets/000/042/242/medium800/adafruit_products_Kit_in_a_tube.jpg?1496371563) CRANKSHAFT (x1)- The crankshaft is made from a single steel rod bent into a resilient core which is responsible for coordinating the movement of all the legs. The crankshaft is normally partially obscured by ligaments in an assembled model, but is also a beautiful object all on its own. ![](https://cdn-learn.adafruit.com/assets/assets/000/043/459/medium800thumb/adafruit_products_crankshaft_bending.jpg?1499133031) HIP SHAFTS (x2) - The hip shafts act as pivot points for all the legs and are made from hardened steel that will hold up to extensive use over time. ![](https://cdn-learn.adafruit.com/assets/assets/000/043/461/medium800/adafruit_products_hipshaft_drawing.jpg?1499134881) JOINT PINS (x40) - These pins act as joints for the machine, providing strong and low-friction connection points between the ligaments and the legs. Each kit comes with a couple extras thrown in just in case.  ![](https://cdn-learn.adafruit.com/assets/assets/000/043/460/medium800/adafruit_products_spring_pin.jpg?1499133833) ## By the numbers One Humble Velocipede consists of 86 printed parts and 43 non-printed parts for a total of 129 individual parts. The rigid skeleton that holds the machine together is composed of 9 elements, while the other 120 parts form the legs and walking mechanism, all driven by the central crankshaft. Of the printed parts, there are 9 unique shapes that, when assembled, form 61 moving pieces.   But that's enough of that, let's get to printing! ![](https://cdn-learn.adafruit.com/assets/assets/000/045/841/medium800/adafruit_products_Screen_Shot_2016-03-06_at_4.31.36_PM.png?1504025411) # The Humble Velocipede ## Printing Instructions STL files can be downloaded from [Thingiverse](https://www.thingiverse.com/thing:1836061) [STL Files](https://www.thingiverse.com/thing:1836061) ![](https://cdn-learn.adafruit.com/assets/assets/000/047/704/medium800/adafruit_products_KKRR3152.jpg?1509125572) If you don't own a 3d printer you can have these parts printed for you using a low-cost 3d printing service such as [3DHubs](https://www.3dhubs.com/). Print settings may vary between printer and type of filament used, but in general you should be safe with the following settings: - 20% infill / 1.5mm retraction - 2 shells - 80mm/s print speed  - 0.20mm layer height / 0.4mm nozzle ![](https://cdn-learn.adafruit.com/assets/assets/000/045/807/medium800/adafruit_products_Leg_Assembly.jpg?1503847240) # A Taxonomy of Parts All of the parts have been given pseudo-anatomical names, which helps by making them easy to organize and refer to.   Below is an explanation of each printed part that goes into making a Humble Velocipede. # Legs ## The Shin Much like your own shin, the shin of the Humble Velocipede forms the lower part of its leg. ![](https://cdn-learn.adafruit.com/assets/assets/000/043/816/medium800/adafruit_products_Screen_Shot_2017-07-07_at_1.11.37_AM.png?1499817800) ## The Thigh The thigh forms the upper part of the leg and is the main connection point for the hip and many of the ligaments. ![](https://cdn-learn.adafruit.com/assets/assets/000/043/337/medium800/adafruit_products_Screen_Shot_2017-06-30_at_4.42.11_PM.png?1498856083) # The Ligaments ## Anterior Collateral Ligament (ACL) The ACL connects the Shin to the Thigh, and is the most visible of all the ligaments. ![](https://cdn-learn.adafruit.com/assets/assets/000/043/372/medium800/adafruit_products_ACL_2.png?1498876567) ## Posterior Collateral Ligament (PCL) The PCL serves as the connection point between the shin assembly and the hip shafts.  ![](https://cdn-learn.adafruit.com/assets/assets/000/043/371/medium800/adafruit_products_PCL_2.png?1498876550) ## Lateral Collateral Ligament (LCL) The LCL is the longest of the ligaments. It connects the intersection of the Shin and the PCL to the crankshaft.  ![](https://cdn-learn.adafruit.com/assets/assets/000/043/370/medium800/adafruit_products_LCL_2.png?1498869517) ## Medial Collateral Ligament (MCL)  The MCL is the smallest ligament. It connects the top of the thigh to the crankshaft.  ![](https://cdn-learn.adafruit.com/assets/assets/000/043/369/medium800/adafruit_products_MCL_2.png?1498869473) # The Plates ## Breastplate These four plates form the central part of the skeleton of a Humble Velocipede.  ![](https://cdn-learn.adafruit.com/assets/assets/000/043/367/medium800/adafruit_products_Breastplate_2.png?1498869430) ## Endplate The endplates act like bookends which capture the hipshafts and protect the internal mechanism.  ![](https://cdn-learn.adafruit.com/assets/assets/000/043/368/medium800/adafruit_products_Endplate_2.png?1498869442) ## Top bar The top bar is the key to finishing any Humble Velocipede. This bar acts as a spinal column to hold the rest of skeleton perfectly rigid. This version twists 90 degrees once inserted through the plates to lock everything into place. ![](https://cdn-learn.adafruit.com/assets/assets/000/043/457/medium800/adafruit_products_Screen_Shot_2017-07-03_at_7.09.03_PM.png?1499123393) [Download 3D files](https://www.thingiverse.com/thing:1836061) # Prepare the Thigh Assembly After printing all the parts, the Thigh, MCL, and ACL will need to be put together in preparation for assembly. ![](https://cdn-learn.adafruit.com/assets/assets/000/045/809/medium800/adafruit_products_Screen_Shot_2017-08-27_at_12.36.49_PM.png?1503851892) Primary: ![](https://cdn-learn.adafruit.com/assets/assets/000/046/022/medium800/adafruit_products_Screen_Shot_2017-08-27_at_12.19.51_PM.png?1504462343) # The Humble Velocipede ## Prepare your Parts The Humble Velocipede is a precision machine and it's important that there be as little friction as possible between all the joints, so before assembling a it's a good idea to check the hole sizes of your parts.  The holes in the 3d printed parts should already all be to spec, but it never hurts to [double check](https://www.adafruit.com/products/1724).  # Hole dimensions Breastplate hipshaft holes: 5/64" Ligament pin holes: 1/16" Ligament crankshaft hole: 3/32" Breastplate crankshaft hole: 7/64" Endplate crankshaft hole: 2/3" If you don't have calipers or a set of drill bits handy, an easy way to standardize all your hole sizes is to use this [precision screwdriver set](https://www.adafruit.com/product/424).  The 1.8mm (dark gray) and 2.4mm (green) size screwdrivers are perfect for checking your hole tolerances. ![](https://cdn-learn.adafruit.com/assets/assets/000/046/008/medium800/adafruit_products_EXQN8787.jpg?1504456126) Use the green screwdriver to check the larger of the two holes in the ligaments. ![](https://cdn-learn.adafruit.com/assets/assets/000/046/012/medium800/adafruit_products_THOJ9627.jpg?1504457372) This is the hole through which the crankshaft will pass, and widening it to exactly 2.4mm (0.094") will give it just enough clearance to make it around the bends. ![](https://cdn-learn.adafruit.com/assets/assets/000/046/009/medium800/adafruit_products_IXIK1361.jpg?1504456153) Use the gray screwdriver to ream out the smaller ligament holes. ![](https://cdn-learn.adafruit.com/assets/assets/000/046/011/medium800/adafruit_products_JESH8572.jpg?1504457337) These are the holes through which the 1/16" spring pins will pass. Checking them with this screwdriver will ensure they have enough clearance to rotate freely. ![](https://cdn-learn.adafruit.com/assets/assets/000/046/010/medium800/adafruit_products_CXIB6616.jpg?1504457167) Don't forget to check the small hole in the PCL. ![](https://cdn-learn.adafruit.com/assets/assets/000/046/013/medium800/adafruit_products_WXAR9469.jpg?1504457411) Use the hipshaft to check that it can pass easily through the larger apertures on the thigh and PCL.  ![](https://cdn-learn.adafruit.com/assets/assets/000/046/014/medium800/adafruit_products_EKJH0539.jpg?1504458103) ![](https://cdn-learn.adafruit.com/assets/assets/000/046/015/medium800/adafruit_products_LYVK8544.jpg?1504458133) You should feel a small amount of friction when passing the hipshaft through the breastplate. This is ok. These parts will form the frame of the machine, which should be as rigid as possible. ![](https://cdn-learn.adafruit.com/assets/assets/000/046/018/medium800/adafruit_products_IMG_5744.jpg?1504458888) Lastly, check that the top bar can move freely through the keyhole in the top of the breastplates. It should pass loosely when flat, but once rotated 90 degrees it should lock firmly into place.  ![](https://cdn-learn.adafruit.com/assets/assets/000/046/016/medium800/adafruit_products_PEJN9579.jpg?1504458171) ![](https://cdn-learn.adafruit.com/assets/assets/000/046/017/medium800/adafruit_products_IMG_5743.jpg?1504458807) If the assembled frame feels rigid and the hipshafts can spin freely through all the thighs, you should be all ready to assemble your Humble Velocipede! ![](https://cdn-learn.adafruit.com/assets/assets/000/046/020/medium800/adafruit_products_RWIC1090.jpg?1504461243) Go on to the next page for full assembly instructions! ![](https://cdn-learn.adafruit.com/assets/assets/000/046/021/medium800thumb/adafruit_products_output_rLM5UR.jpg?1504462252) # The Humble Velocipede ## Assembly Instructions The assembly process is broken down into ten phases, shown here in ten animated GIFs.  Scroll further down for detailed step-by-step instructions.  # **Phase 1 ** Setup ![](https://cdn-learn.adafruit.com/assets/assets/000/043/606/medium800thumb/adafruit_products_1_setup.jpg?1499364846) # **Phase 2**   First set of legs ![](https://cdn-learn.adafruit.com/assets/assets/000/043/607/medium800thumb/adafruit_products_2_first_legs.jpg?1499364903) # **Phase 3** Second set of legs ![](https://cdn-learn.adafruit.com/assets/assets/000/043/608/medium800thumb/adafruit_products_3_second_legs.jpg?1499364941) # **Phase 4** Add second breastplate ![](https://cdn-learn.adafruit.com/assets/assets/000/043/609/medium800thumb/adafruit_products_4_second_breastplate.jpg?1499364989) # **Phase 5** Add third set of legs ![](https://cdn-learn.adafruit.com/assets/assets/000/043/610/medium800thumb/adafruit_products_5_third_legs.jpg?1499365016) # **Phase 6** Add the next breastplate and fourth set of legs ![](https://cdn-learn.adafruit.com/assets/assets/000/043/611/medium800thumb/adafruit_products_6_fourth_legs.jpg?1499365038) # **Phase 7** Add final breastplate and fifth set of legs ![](https://cdn-learn.adafruit.com/assets/assets/000/043/612/medium800thumb/adafruit_products_7_fifth_legs.jpg?1499365061) # **Phase 8** Start adding shins ![](https://cdn-learn.adafruit.com/assets/assets/000/043/613/medium800thumb/adafruit_products_8_shins.jpg?1499365080) # **Phase 9** Add the rest of the shins ![](https://cdn-learn.adafruit.com/assets/assets/000/043/614/medium800thumb/adafruit_products_9_shins_pt2.jpg?1499365112) # **Phase 10** Finish by adding endplates and top bar ![](https://cdn-learn.adafruit.com/assets/assets/000/043/615/medium800thumb/adafruit_products_10_finish.jpg?1499365161) # **Detailed Instructions** # Phase 1 - Step by step To begin assembling, first find the crankshaft and thread it onto one of the plates.   ![](https://cdn-learn.adafruit.com/assets/assets/000/034/695/medium800/adafruit_products_1.jpg?1471040335) Insert the two hipshafts into the two small holes in the plate and lay it on its back, point facing down. ![](https://cdn-learn.adafruit.com/assets/assets/000/034/696/medium800/adafruit_products_2.jpg?1471040413) Next, grab a ligament and thread it onto the crankshaft. Make sure the indent is facing outwards, away from the breastplate. ![](https://cdn-learn.adafruit.com/assets/assets/000/034/697/medium800/adafruit_products_3.jpg?1471040517) Grab a thigh assembly (thigh + MCL + ACL) and thread the ligament onto the crankshaft, also keeping the indent facing outwards. ![](https://cdn-learn.adafruit.com/assets/assets/000/034/699/medium800/adafruit_products_5.jpg?1471040685) Once this is in place, push the hipshaft into the thigh, but before going all the way through, place a tendon into the gap in the thigh assembly. Now pass the hipshaft through the assembled parts. ![](https://cdn-learn.adafruit.com/assets/assets/000/034/700/medium800/adafruit_products_6.jpg?1471040869) Thread the next thigh assembly on, this time reversing its orientation so the indents of both of their ligaments face each other. Then place a tendon into the thigh and pass the hipshaft through, as before. ![](https://cdn-learn.adafruit.com/assets/assets/000/034/701/medium800/adafruit_products_8.jpg?1471040896) ![](https://cdn-learn.adafruit.com/assets/assets/000/034/702/medium800/adafruit_products_9.jpg?1471041083) Congratulations! The first stage is complete. From here on out, the assembly process will be quite simple. ![](https://cdn-learn.adafruit.com/assets/assets/000/034/703/medium800/adafruit_products_10.jpg?1471041122) To continue the assembly, slide the hipshafts almost all the way through the plate, so about 1/2” are still poking out. # Phase 2 - Step by step Now thread a ligament all the way down the crankshaft, being mindful that it’s oriented so the indented side faces away from the first breastplate. ![](https://cdn-learn.adafruit.com/assets/assets/000/034/704/medium800/adafruit_products_17.jpg?1471041157) Repeat the process of adding ligaments, thighs, tendons, and plates. ![](https://cdn-learn.adafruit.com/assets/assets/000/034/705/medium800/adafruit_products_18.jpg?1471041395) Continue to slide the hip shafts forward as more parts are added. ![](https://cdn-learn.adafruit.com/assets/assets/000/034/706/medium800/adafruit_products_19.jpg?1471041413) ![](https://cdn-learn.adafruit.com/assets/assets/000/034/707/medium800/adafruit_products_21.jpg?1471041431) ![](https://cdn-learn.adafruit.com/assets/assets/000/034/708/medium800/adafruit_products_23.jpg?1471041461) ![](https://cdn-learn.adafruit.com/assets/assets/000/034/709/medium800/adafruit_products_24.jpg?1471041475) Phase 2 complete! # Phase 3 - Step by step Add another plate by threading it onto the crankshaft, carefully guiding it around corners. ![](https://cdn-learn.adafruit.com/assets/assets/000/034/710/medium800/adafruit_products_25.jpg?1471041574) This is a delicate dance. ![](https://cdn-learn.adafruit.com/assets/assets/000/034/711/medium800/adafruit_products_26.jpg?1471041587) ![](https://cdn-learn.adafruit.com/assets/assets/000/034/712/medium800/adafruit_products_27.jpg?1471041604) ![](https://cdn-learn.adafruit.com/assets/assets/000/034/713/medium800/adafruit_products_28.jpg?1471041625) ![](https://cdn-learn.adafruit.com/assets/assets/000/034/714/medium800/adafruit_products_29.jpg?1471041648) ![](https://cdn-learn.adafruit.com/assets/assets/000/034/715/medium800/adafruit_products_30.jpg?1471041664) ![](https://cdn-learn.adafruit.com/assets/assets/000/034/716/medium800/adafruit_products_31.jpg?1471041684) ![](https://cdn-learn.adafruit.com/assets/assets/000/034/717/medium800/adafruit_products_32.jpg?1471041814) ![](https://cdn-learn.adafruit.com/assets/assets/000/034/719/medium800/adafruit_products_34.jpg?1471041847) ![](https://cdn-learn.adafruit.com/assets/assets/000/034/720/medium800/adafruit_products_35.jpg?1471041866) ![](https://cdn-learn.adafruit.com/assets/assets/000/034/721/medium800/adafruit_products_37.jpg?1471041885) ![](https://cdn-learn.adafruit.com/assets/assets/000/034/722/medium800/adafruit_products_38.jpg?1471041907) By now your machine should be beginning to take shape and you should be getting the hang of the assembly process.  ![](https://cdn-learn.adafruit.com/assets/assets/000/034/723/medium800/adafruit_products_39.jpg?1471041924) Onwards! # Phase 4 - Step by step Thread on another plate. ![](https://cdn-learn.adafruit.com/assets/assets/000/034/724/medium800/adafruit_products_40.jpg?1471041971) ![](https://cdn-learn.adafruit.com/assets/assets/000/034/725/medium800/adafruit_products_41.jpg?1471041996) ![](https://cdn-learn.adafruit.com/assets/assets/000/034/726/medium800/adafruit_products_42.jpg?1471042017) ![](https://cdn-learn.adafruit.com/assets/assets/000/034/728/medium800/adafruit_products_44.jpg?1471042074) ![](https://cdn-learn.adafruit.com/assets/assets/000/034/729/medium800/adafruit_products_45.jpg?1471042112) ![](https://cdn-learn.adafruit.com/assets/assets/000/034/730/medium800/adafruit_products_48.jpg?1471042132) ![](https://cdn-learn.adafruit.com/assets/assets/000/034/731/medium800/adafruit_products_50.jpg?1471042152) ![](https://cdn-learn.adafruit.com/assets/assets/000/034/732/medium800/adafruit_products_51.jpg?1471042176) ![](https://cdn-learn.adafruit.com/assets/assets/000/034/733/medium800/adafruit_products_52.jpg?1471042198) # Phase 5 - Step by step ![](https://cdn-learn.adafruit.com/assets/assets/000/034/734/medium800/adafruit_products_54.jpg?1471042251) ![](https://cdn-learn.adafruit.com/assets/assets/000/034/735/medium800/adafruit_products_55.jpg?1471042281) ![](https://cdn-learn.adafruit.com/assets/assets/000/034/736/medium800/adafruit_products_56.jpg?1471042298) ![](https://cdn-learn.adafruit.com/assets/assets/000/034/737/medium800/adafruit_products_57.jpg?1471042314) ![](https://cdn-learn.adafruit.com/assets/assets/000/034/738/medium800/adafruit_products_58.jpg?1471042338) ![](https://cdn-learn.adafruit.com/assets/assets/000/034/739/medium800/adafruit_products_60.jpg?1471042358) ![](https://cdn-learn.adafruit.com/assets/assets/000/034/740/medium800/adafruit_products_61.jpg?1471042386) ![](https://cdn-learn.adafruit.com/assets/assets/000/034/741/medium800/adafruit_products_63.jpg?1471042407) ![](https://cdn-learn.adafruit.com/assets/assets/000/034/742/medium800/adafruit_products_64.jpg?1471042429) Once all 10 thighs are in place, shins can begin to be added to complete all the legs. Find some shins! ![](https://cdn-learn.adafruit.com/assets/assets/000/034/743/medium800/adafruit_products_65.jpg?1471042452) # Phase 6 - Step by step 1. Take one pin and use it to hold the ligament and posterior tendon together.  2. Place a second pin into the top hole of the shin. 3. Connect the pin to the anterior tendon (the one that’s part of the thigh assembly). 4. Rotate the shin so that you’re able to press the pin holding the posterior tendon and ligament into the shin. 5. Make sure that each shin that is added is oriented so that its large, flat side is facing outwards. 6. Find the corresponding half of the shin and fit it onto the first half, matching up the pins with the holes and pressing the halves firmly together. One down, 9 more to go! 7. After all the shins are on, take your Humble Velocipede for its first test walk. If there are any issues, now is the time to fix them. Check that everything is oriented correctly, and there are no places that catch and prevent the Humble Velocipede from walking smoothly. 8. Once you are confident with your assembly, insert the top bar through the holes in the top of the breastplates.  9. After the top bar is centered so that the ends line up with the crankshaft and hipshafts, take your endplates and press them on. 10. You’re finished! If you’d like to make your assembly a bit more permanent, add a small dab of super glue to the ends of the hipshafts before putting on the endplates. This should hold it together permanently.  ![](https://cdn-learn.adafruit.com/assets/assets/000/042/749/medium800thumb/adafruit_products_Laser_cut_HV_video.jpg?1497500027) # The Humble Velocipede ## Troubleshooting Your machine should be loose enough to spin the crankshaft with your fingers.  ![](https://cdn-learn.adafruit.com/assets/assets/000/043/884/medium800thumb/adafruit_products_IMG_4143.jpg?1499897380) If your machine is not walking properly, check that the ligaments are all oriented in the right direction. These machines can be unforgiving of assembly errors, but can be taken apart and fixed without too much trouble.  # Tips & Tricks It helps to add a little oil to the joints. ![](https://cdn-learn.adafruit.com/assets/assets/000/034/691/medium800thumb/adafruit_products_IMG_9112_copy.jpg?1471020069) Rigorous exercise will also work out any kinks over time. ![](https://cdn-learn.adafruit.com/assets/assets/000/043/462/medium800thumb/adafruit_products_IMG_3952.jpg?1499136480) # Things to watch out for Misplaced hip shaft ![](https://cdn-learn.adafruit.com/assets/assets/000/042/347/medium800/adafruit_products_IMG_2049.jpg?1496629218) The MCL must always be oriented correctly. ![](https://cdn-learn.adafruit.com/assets/assets/000/043/886/medium800/adafruit_products_thigh_assembly.jpg?1499959282) Incorrect orientation ![](https://cdn-learn.adafruit.com/assets/assets/000/042/348/medium800/adafruit_products_IMG_2497_copy.jpg?1496629302) Backward shins ![](https://cdn-learn.adafruit.com/assets/assets/000/044/143/medium800/adafruit_products_SAKB4794_copy.jpg?1500911127) # The Humble Velocipede ## Variations ![](https://cdn-learn.adafruit.com/assets/assets/000/043/883/medium800thumb/adafruit_products_IMG_4128.jpg?1499893912) This design is very malleable and open to re-interpretations, improvements, and upgrades. ![](https://cdn-learn.adafruit.com/assets/assets/000/042/756/medium800/adafruit_products_IMG_2883.jpg?1497506242) ![](https://cdn-learn.adafruit.com/assets/assets/000/045/808/medium800thumb/adafruit_products_IMG_5482.jpg?1503850035) It is possible to motorize these machines as well for remote control fun! ![](https://cdn-learn.adafruit.com/assets/assets/000/043/662/medium800thumb/adafruit_products_IMG_4025.jpg?1499448153) Guides to build larger versions of this walking machine have been published here [https://www.instructables.com/id/Strandbeest-Inspired-3D-Printable-Walking-Machine/](https://www.instructables.com/id/Strandbeest-Inspired-3D-Printable-Walking-Machine/) and here [https://www.thingiverse.com/thing:2558439](https://www.thingiverse.com/thing:2558439) Note: these versions use 3D printed crankshafts which makes the assembly process more complex. ![](https://cdn-learn.adafruit.com/assets/assets/000/042/752/medium800thumb/adafruit_products_IMG_0052.jpg?1497502881) # Epilogue The Humble Velocipede is a continuation of [this Kickstarter project](https://www.kickstarter.com/projects/thehumblevelocipede/the-humble-velocipede), which succeeded in 2012 (bamboo Velocipedes are no longer being produced). If you'd like to buy one already assembled, an assortment of Humble Velocipede prototypes are available for sale here: [https://www.etsy.com/shop/TheHumbleVelocipede](https://www.etsy.com/shop/TheHumbleVelocipede?section_id=21655213) ![](https://cdn-learn.adafruit.com/assets/assets/000/042/753/medium800thumb/adafruit_products_walker.jpg?1497503103) The digital simulacrum is always available to play with here: [http://smallwondertoy.co/](http://smallwondertoy.co/) ## Featured Products ### Humble Velocipede Crankshaft Kit [Humble Velocipede Crankshaft Kit](https://www.adafruit.com/product/3542) This kit contains the essential metal components you need to build your very own  **Humble Velocipede**. This kit complements the [**Ligaments Kit**](https://www.adafruit.com/product/3652) and provides all the metal pieces that cannot be... No Longer Stocked [Buy Now](https://www.adafruit.com/product/3542) [Related Guides to the Product](https://learn.adafruit.com/products/3542/guides) ### Premium Digital Stainless Steel Calipers [Premium Digital Stainless Steel Calipers](https://www.adafruit.com/product/1724) The most useful tool we've ever laid our hands on. These calipers are really good quality and an excellent choice if you need something better than a cheap 'disposable' pair of digital calipers but you're not quite ready for a set of high-end Mitsutoyo calipers. These digital... No Longer Stocked [Buy Now](https://www.adafruit.com/product/1724) [Related Guides to the Product](https://learn.adafruit.com/products/1724/guides) ### PRINTinZ Skin for Ultimaker - 229mm x 257mm [PRINTinZ Skin for Ultimaker - 229mm x 257mm](https://www.adafruit.com/product/3098) Looking to improve the printing bed on your Ultimaker? Check out the  **PRINTinZ Skin for Ultimaker**! The [PRINTinZ Skin](http://www.printinz.com/zebra-skins/) is a peel and stick surface for 3D printer beds made from the same durable... No Longer Stocked [Buy Now](https://www.adafruit.com/product/3098) [Related Guides to the Product](https://learn.adafruit.com/products/3098/guides) ### PRINTinZ Flexible 3D Printer Plate for Printrbot - 168mm x 237mm [PRINTinZ Flexible 3D Printer Plate for Printrbot - 168mm x 237mm](https://www.adafruit.com/product/2233) Removing 3D printed parts from your 3D printer can be tough. Sometimes pieces get stuck to your 3D printing plate and their bottoms get stuck to your build plate.  Over time, chiseling objects off can scratch and damage your plate - and get pretty annoying - so wouldn't it be... No Longer Stocked [Buy Now](https://www.adafruit.com/product/2233) [Related Guides to the Product](https://learn.adafruit.com/products/2233/guides) ### Ultimaker 2+ 3D Printer [Ultimaker 2+ 3D Printer](https://www.adafruit.com/product/2673) The **Ultimaker 2+** is one of our favorite 3D printers on the market. It's a well-built open-source compact machine with an excellent UX. Every inch of the Ultimaker 2+ is designed to create the most effortless and reliable 3D printing experience ever!  No Longer Stocked [Buy Now](https://www.adafruit.com/product/2673) [Related Guides to the Product](https://learn.adafruit.com/products/2673/guides) ### PLA Filament for 3D Printers - 1.75mm Diameter - White - 1KG [PLA Filament for 3D Printers - 1.75mm Diameter - White - 1KG](https://www.adafruit.com/product/2067) Having a 3D printer without filament is sort of like having a regular printer without paper or ink.  And while a lot of printers come with some filament there's a good chance you've been printing up a storm and need something new.  That's why we've started carrying a... No Longer Stocked [Buy Now](https://www.adafruit.com/product/2067) [Related Guides to the Product](https://learn.adafruit.com/products/2067/guides) ### Micro 3D Printer - Black - Retail Edition [Micro 3D Printer - Black - Retail Edition](https://www.adafruit.com/product/2933) The magic of 3D printing is now more affordable and accessible than ever! Meet The **Micro 3D Printer** by [M3D](https://printm3d.com/), the first truly consumer 3D printer. Sporting a compact design, user-friendly software, and replaceable print beds and nozzles,... No Longer Stocked [Buy Now](https://www.adafruit.com/product/2933) [Related Guides to the Product](https://learn.adafruit.com/products/2933/guides) ### Blue Masking Tape for 3D Printing Plates [Blue Masking Tape for 3D Printing Plates](https://www.adafruit.com/product/2416) OK yes, it's just masking tape. A big honkin' roll of I'm blue da-ba-dee-da-ba-die masking tape. Removing 3D printed parts can be tough. Sometimes pieces get stuck to your 3D printing plate and their bottoms get stuck to your build plate. Over time, chiseling objects off can... No Longer Stocked [Buy Now](https://www.adafruit.com/product/2416) [Related Guides to the Product](https://learn.adafruit.com/products/2416/guides) ## Related Guides - [DS1307 Real Time Clock Breakout Board Kit](https://learn.adafruit.com/ds1307-real-time-clock-breakout-board-kit.md) - [Adafruit Hallowing M4](https://learn.adafruit.com/adafruit-hallowing-m4.md) - [Adafruit Pro Trinket LiPoly/LiIon Backpack](https://learn.adafruit.com/adafruit-pro-trinket-lipoly-slash-liion-backpack.md) - [Adafruit MMA8451 Accelerometer Breakout](https://learn.adafruit.com/adafruit-mma8451-accelerometer-breakout.md) - [Apple IIe Fruit Jam Enclosure](https://learn.adafruit.com/apple-iie-fruit-jam-enclosure.md) - [Trinket “Question Block” Sound Jewelry](https://learn.adafruit.com/trinket-question-block-sound-jewelry.md) - [3D Printed LED Buckle](https://learn.adafruit.com/3d-printed-led-buckle.md) - [Adafruit INA260 Current + Voltage + Power Sensor Breakout](https://learn.adafruit.com/adafruit-ina260-current-voltage-power-sensor-breakout.md) - [Fiber Optic Whip](https://learn.adafruit.com/fiber-optic-whip.md) - [Adafruit MCP4728 I2C Quad DAC](https://learn.adafruit.com/adafruit-mcp4728-i2c-quad-dac.md) - [LED Sculpture Lamp](https://learn.adafruit.com/led-sculpture-lamp.md) - [Mac Classic Fruit Jam](https://learn.adafruit.com/mac-classic-fruit-jam.md) - [GoPro Hero 5 NinjaFlex Case with Tripod](https://learn.adafruit.com/gopro-hero-5-ninjaflex-case-with-tripod.md) - [Adafruit PiCowbell Adalogger for Pico](https://learn.adafruit.com/adafruit-picowbell-adalogger-for-pico.md) - [GitHub Actions Status Tower Light](https://learn.adafruit.com/github-actions-status-tower-light.md)