> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt # Pololu Bumper Cage Kit for Balboa **Type:** Product page · **SKU:** POLOLU-3574 · **Brand:** [Pololu](https://core-electronics.com.au/brands/pololu-australia) **Page:** https://core-electronics.com.au/pololu-bumper-cage-kit-for-balboa.html ([markdown](https://core-electronics.com.au/pololu-bumper-cage-kit-for-balboa.html.md)) This accessory kit for the Balboa Chassis can be used for a variety of different applications, from a bumper cage for protecting your electronics to skids on which it can drive around to arms that you can mount sensors on. The parts for this kit are already included with the Balboa 32U4 Balancing Robot Kit. ## Pricing - **Price:** $18.35 (inc GST) — $16.68 AUD, exc GST - **Quantity discounts:** 10+ $16.02 (exc GST) · 25+ $15.52 (exc GST) ## Availability & dispatch - Available with a lead time — expect dispatch between Aug 31 and Sep 02. ## How to buy - **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=POLOLU-3574:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart. - **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/POLOLU-3574:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.) - **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there. - **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works) - **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt ## Description | [![](https://core-electronics.com.au/attachments/localcontent/0J7788_19060679f94.jpg)](https://core-electronics.com.au/attachments/localcontent/0J7788_288618dcc8b.jpg) | |---| Protect your Balboa robot from falls with this bumper cage kit, which includes: - four bumper skids - four bumper cage cross bars - two bumper skid spacers - twelve 12 mm M3 screws and nuts The pieces for this kit are already included in the [Balboa 32U4 Robot Kit](https://core-electronics.com.au/pololu-balboa-32u4-balancing-robot-kit-no-motors-or-wheels.html), but Pololu have made them available separately for those who need replacements or want a set to use with the [Balboa Chassis Kit](https://core-electronics.com.au/pololu-balboa-chassis-with-stability-conversion-kit-no-motors-wheels-or-electronics.html), which does not include the bumper cage. The bumper cage skids mount to the side of the Balboa chassis or [stability conversion add-on](https://core-electronics.com.au/pololu-stability-conversion-kit-for-balboa.html) and can be arranged in a wide variety of positions, configurations, and orientations, enabling a wide variety potential uses. The primary purpose of the bumper kit is to absorb an impact before your electronics do, which is especially important for balancing applications, where hard falls can be a frequent occurrence. In addition to this, they can be positioned to prop your robot at just the right angle for it to be able to kick itself back up to vertical, or you can just use them as skids for your Balboa to drive around on. | \| [![](https://core-electronics.com.au/attachments/localcontent/0J7789_21601647f8b.jpg)](https://core-electronics.com.au/attachments/localcontent/0J7789_85997fb2d51.jpg) \| \|---\| \| One of the many possible configurations of the bumper cage on the Balboa 32U4 Balancing Robot. \| | \| [![](https://core-electronics.com.au/attachments/localcontent/0J7791_2033137bcba.jpg)](https://core-electronics.com.au/attachments/localcontent/0J7791_57545533584.jpg) \| \|---\|---\| \| One of the many possible configurations of the bumper cage on the Balboa 32U4 Balancing Robot. \| | |---| | \| [![](https://core-electronics.com.au/attachments/localcontent/0J7790_20752f0816e.jpg)](https://core-electronics.com.au/attachments/localcontent/0J7790_407940d5fa7.jpg) \| \| The Balboa 32U4 can drive around on its side while resting on the bumper cage skids. \| | \| [![](https://core-electronics.com.au/attachments/localcontent/0J8783_3406019bbb6.jpg)](https://core-electronics.com.au/attachments/localcontent/0J8783_588555dd375.jpg) \| \|---\|---\| \| One of the many possible configurations of the bumper cage on the Balboa 32U4 Balancing Robot (lengthened with Stability Conversion accessory). \| | |---| The bumper cage skids and cross bars include a number of holes and slots sized to work with #4 and M3 screws, which gives you a lot of flexibility in how you can put them together and what you can mount to them (see the bumper cage kit dimension diagram (152k pdf) for more information). The following example shows them holding a [QTR-8RC reflectance sensor array](https://core-electronics.com.au/qtr-8rc-reflectance-sensor-array.html) in front of the Balboa 32U4 Robot with the Stability Conversion accessory: | \| [![](https://core-electronics.com.au/attachments/localcontent/0J8794_15514a8bd50.jpg)](https://core-electronics.com.au/attachments/localcontent/0J8794_272951b99f7.jpg) \| \|---\| | \| [![](https://core-electronics.com.au/attachments/localcontent/0J8786_21235e0e56f.jpg)](https://core-electronics.com.au/attachments/localcontent/0J8786_51632a51c8b.jpg) \| \|---\|---\| | |---| For more information on this bumper cage kit, including the chassis angles that can be achieved with the various mounting positions and orientations, see the bumper cage section of the Balboa 32U4 Balancing Robot user’s guide. Assembly of the bumper cage kit is explained in the assembly instructions in that same user’s guide. **People often buy this product together with:** | [![Pololu Wheel 80×10mm Pair - Black](https://core-electronics.com.au/attachments/localcontent/0J10430_32810c27c8.jpg)](https://core-electronics.com.au/pololu-wheel-80x10mm-pair-black.html) | [Pololu Wheel 80×10mm Pair - Black](https://core-electronics.com.au/pololu-wheel-80x10mm-pair-black.html) | |---|---| | [![50:1 Micro Metal Gearmotor HPCB 6V with Extended Motor Shaft](https://core-electronics.com.au/attachments/localcontent/0J6830_3507e73fe1.jpg)](https://core-electronics.com.au/50-1-micro-metal-gearmotor-hpcb-6v-with-extended-motor-shaft.html) | [50:1 Micro Metal Gearmotor HPCB 6V with Extended Motor Shaft](https://core-electronics.com.au/50-1-micro-metal-gearmotor-hpcb-6v-with-extended-motor-shaft.html) | |---|---| | [![Stability Conversion Kit for Balboa](https://core-electronics.com.au/attachments/localcontent/0J8766_26436cae7b.jpg)](https://core-electronics.com.au/pololu-stability-conversion-kit-for-balboa.html) | [Stability Conversion Kit for Balboa](https://core-electronics.com.au/pololu-stability-conversion-kit-for-balboa.html) | |---|---| **Dimensions** | Weight: | 35 g | |---|---| **Documentation and other information** - ![](https://core-electronics.com.au/attachments/localcontent/0J7579_5496e46f44.jpg)**Pololu Balboa 32U4 Balancing Robot User’s Guide (Printable PDF)** User’s manual for the Pololu Balboa 32U4 balancing robot. **File downloads** - **Dimension diagram of the Bumper Cage Kit for Balboa 32U4 Balancing Robot (152k pdf)** - **Balboa Bumper Cage assembly reference diagram (2MB pdf)** Note: all angles shown assume the use of 80mm wheels. ## Images - [Product image 1](https://core-electronics.com.au/media/catalog/product/0/j/0j7788.1200-_1_.jpg)