Cast Track Shoes
Learn how to use M86 Toys' cast urethane track shoes for Death Racer builds. Includes part links, trimming tips, compatibility info, and tutorial resources.
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Learn how to use M86 Toys' cast urethane track shoes for Death Racer builds. Includes part links, trimming tips, compatibility info, and tutorial resources.
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The cast urethane track shoes are a high-durability upgrade for Death Racer builds, developed through extensive trial, error, and live-streamed prototyping. These track shoes are compatible with M86 Toys' 3D printable track link and frame system and offer improved traction and flexibility over fully printed treads.
These track shoes were developed through months of iteration and testing, featured prominently on . The final version was showcased at the 2025 Rocky Mountain RepRap Festival (RMRRF) as part of their competitive Death Racer build.
Track Shoes: Cast in flexible urethane rubber
Bundle Size: Shoes are cast in sprued bundles of 6
Fitment: Designed to work with M86 Toysā track link and modified track frame system
Trimming: Untrimmed sets require sprue/vent trimming with side cutters
M86 3D printable track link STL files
Modified track frame STL files
Side cutters or flush cutters (for untrimmed sets)
Track pins or fasteners of your choice
š Track Shoes
A full video tutorial will be available soon, walking through:
Trimming sprues and vents
Assembling the track using M86 links
Mounting to the modified Death Racer frame
š Link will be added here when live.
If you are DIY casting your own tracks you will want to pick up the Tread Mold digital download on M86 Toys.
Wear the proper PPE (Mask, Gloves)
Spray the mold halves with mold release in a well ventilated space.
Bolt the mold halves together until snug. Do not deflect the plastic as this is a sign of over tightening.
Measure both stages of material for pouring in separate container keeping part A and part B separate (Stage 1 is a total of 250 grams, Stage 2 is 400 grams for a full set of 66 tracks)
Measure and Mix in your color in Side B only
Know your material pot life and cure times before you start!!!! (60 Minute Pot Life but starts getting thick at 40 minutes)
Pour Side A into Side B and mix for 1-2 minutes or until thoroughly mixed... The Pot Life Clock starts from the second side A touches Side B. Starting a 30-35 minute timer.
Pour Equal amounts of mixed rubber into each space, put the mold on a scale if you have trouble knowing the amount being poured into each mold. Each mold gets about 23 grams of Urethane Rubber in the first stage of the pour.
Wait 30-35 minutes, noted in step 7.
Taking Stage 2 of Part A and Part B (400 grams), repeat steps 7 and 8 but this time set a timer for 10 minutes. You will have more material than the spru will hold.
After 10 minutes, top off the spru of each mold. Repeat until you have run out of material.
Let molds cure for 16-17 hours.
After cure time has complete, disassemble the molds, trim the treads of sprus and vents.
Slide Tracks into Track Links and Drive!!!!
Q: Can I cast my own shoes? A: Yes! A mold STL file and casting tutorial will be released soon for DIY builders.
Q: Do I need special tools to trim the uncut shoes? A: A simple pair of flush cutters or side cutters is all you need.
Q: Are the files open source? A: Files are licensed for personal use only. Please see license details in the product downloads or contact Maker86 Industries (M86 Toys) for commercial licensing.
M86 urethane track shoes ( or )
Color: Black ( / )
š (Use 'malamaker-wiki-reader' code during checkout to get the digital files for free... heads up if we find this code in forums we will kill the free download code)
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(Qty 11) M6 Bolts or Threaded Rod [Molds are approx 25mm Thick, 300mm rods needed to do a full set of tracks - 11 molds] ()
Smooth-on Vytaflex 60 Urethane Rubber [650 grams needed per set, Trial Kit is 2lbs / 900 grams] ()
Color Pigment [Smooth-on SO-Strong, Do not exceed 3% color] ()
Smooth-on Universal Mold Release ()
We recommend the 40amp relay kill switch upgrade to avoid burning up kill switches. With the added traction this will increase current spikes and burn up the stock switches faster. Kill Switch Relay Mod can be found .