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LICENSE
LICENSE
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README.md
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Robot.step
Robot.step
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Undercutter V2.csv
Undercutter V2.csv
Apr 11, 2026

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DNS-Combat-Robot

A beetleweight forked undercutter. Screenshot 2026-03-22 211701

This is a 4 wheel drive beast, using the JCR Cherry Bomb motor and the Blitz Lites for drive.

The CAD can be viewed here: https://cad.onshape.com/documents/54b35853b490f7b636402c15/w/556437aa5a32b67c4960c036/e/38ae217d228fbcbd10d8c5af?renderMode=0&uiState=69d9bd39969e9bf0c96ec368c368

I made this project as I have been going to NHRL for years as a spectator, and for all those years I told myself I would be behind the sticks one day. Well, that day is coming very soon, hopefully April 2026, but maybe May. On top of that, I just like engeneering and I think this has been be a great learning opritunity.

Wiring Diagram: 1775188234630-wzdume

Item Link Unit Price # needed Min Price:
Pulley Hub https://justcuzrobotics.com/products/12-hex-hubs-6mm?_pos=2&_sid=89175d3da&_ss=rmp;_ss=r $12.50 1 $12.50
Weapon Motor https://justcuzrobotics.com/products/jcr-4935-1000kv?variant=48340296401205 $85.00 1 $85.00
Drive Motor https://justcuzrobotics.com/products/blitz-lite-1604?variant=50940452864309 $55.00 2 $110.00
Battery pyrodrone.com/products/gaoneng-gnb-4s-15-2v-1100mah-160c-hv-lipo-battery-xt60 $26.00 1 $26.00
HS TPU amazon.com/gp/product/B08BC654PS?smid=A3M6OB6YPLO1C&th=1th=1 $22.49 1 $22.49
VytaFlex30 https://www.amazon.com/dp/B00IZNEPF0?linkCode=ml1&tag=justcuzroboti-20&th=1amp;th=1 $35.97 1 $35.97
FS-i6X www.amazon.com/FLYSKY-Transmitter-Controller-Receiver-Upgrade/dp/B07Z8VCB45?crid=1GIIAQLEZNWI2&dib=eyJ2IjoiMSJ9.xlfNX4B14QOVXcmsNzO7DeAeb9wDOmxkCEm2QRAqm6S-LZ70zgpbegs1-eHo-_CZ9Wrv4dsorar5sUaQxexRO_1vtiP2YThVMHjH1OkmAl4x8sioJx1h7cavD7sxE2-Ux9gHkLH-ZBDXRxU2WdxOgZ6TH3cKdeu7B_EoDWpkqH-bv7CizuUdXlCC9H3ItjZtO3U4HIeLmOly7WKgMtKHAcmozeCejWcJo1qLXvtzk_InQ9MNql-b1SMRTinV2288Nr7n4IX_Mc04TLZjhzBqGtf_RXLuGyYhjURS6HfRLdE.-Sw6_cx2dEU5efVLxqjWJKhfPo9lnScZj33U_m7iaH8&dib_tag=se&keywords=flysky&qid=1774228161&sprefix=flysky%2Caps%2C117&sr=8-1y%2Caps%2C117&sr=8-1 $54.89 1 $54.89
#8-16 1" Plastites www.amazon.com/Stainless-Rolling-Plastic-Passivated-Phillips/dp/B00GDYCU9Q?crid=3UJ756UMRCUU5&dib=eyJ2IjoiMSJ9.m82-DAejvdBP9m0EjxjIRjwjKCCKCAis_BNO09xbxaN3gwcFyLY8KuKfg8htV_9D_nv01Q9AdUanfWhyv-bcKIZqlGVlKijdilV02quuahBthG6dGIuHg0tyqV2EMCpfixY87S34EbPWU-AQ9JKR2NcHoJVra-dBd53hAliEm6yohx8yxwHAhviVPRn_plNxjY-TjDNBfOCpmb-h9V4u8XlU2Dc-wq8SHrh2mcL5Il8.jCQJtV9h1aoDWOde_NuXAVDe8nuLoM7CKNoXJ4Hjuxc&dib_tag=se&keywords=plastite+screws+%238&qid=1774225862&sprefix=plastite%2Caps%2C168&sr=8-4e%2Caps%2C168&sr=8-4 $0.43 9 $3.83
R4-2RS Bearings www.amazon.com/FOCMKEAS-R4-2RS-Bearing-Bicycle-Printer/dp/B0BMW2PBXB?crid=3G271QEIXBXFK&dib=eyJ2IjoiMSJ9.Kjh59r9-I_qxB6KHMY5zQZMcw3gCk4H_Bdn-1-XeNMP8pUG1TXXIp3QfD4wbC2GJsfa8a6E2HTRmYmMG-bUS3h5nG-LRmkURn8fj_fuZwJhZQiEds1-4UGvBksRp_TXt6TqBAgQhWPiJSKIZy4X4smRNiiVXe-6_5s1EYLi0GSou9RCJUgGDLC-Q0goGwIrb3NRJVy_dbRqp2q3vZekounOmNao7NHn_nCPPigZnBH0.sYPLBpO4bAcOHlt8B2J3tF1eElikmZYHaMHu6agiGlU&dib_tag=se&keywords=6.35mm%2Bid%2Bbearing&qid=1773545239&sprefix=6.35mm%2Bid%2Bbearing%2Caps%2C108&sr=8-2&th=1ps%2C108&sr=8-2&th=1 $0.85 8 $6.79
Epoxy Resin Pigment www.amazon.com/Epoxy-Resin-Pigment-Translucent-Concentrated/dp/B084Q23M8Z?crid=3DSZ6E69YJT3U&dib=eyJ2IjoiMSJ9.zIg6FPZc4ZoDRA9bxIYGgynOgOZrW3oofwwbPDPoiDhZC2TyjSyb-WL84xXPpYEj5ZTzd2FMjcr47hbRBzsCqJFTH6zOcCD-V53QnNQOsVGM6GyaT3Cmc1mZyizKk5dftWFSaO4k7UlZYUpUHh0zcQDuogCazJCU0FAeRcdRAEGWL2Nom1EXlBKXvbORXsgM_Ony93eTlwSeG2IaosnlB7OGC8kif3pKpVe1OBQS6Nj6qim2lmZmx0wY2tuOWQWVBAclLto-DLR2o14R5OeMS27pnnZ5FWLyYtv3DWLaXYM.FmzQiKHVFqaEfb8gIJ0xSse8n2fQlKZQF8683rgHTrs&dib_tag=se&keywords=epoxy%2Bresin%2Bcolorant&qid=1774873405&sprefix=epoxy%2Bresin%2Bcolorant%2Caps%2C207&sr=8-6&th=1ps%2C207&sr=8-6&th=1 $9.99 0 $-
Switch palmbeachbots.com/products/fingertech-mini-power-switch $8.89 1 $8.89
XT60 Male palmbeachbots.com/products/xt60-connector-male-with-pigtail $1.39 1 $1.39
Dual ESC palmbeachbots.com/products/repeat-robotics-am32-dual-brushless-drive-esc-with-bec?_pos=3&_sid=c29ee7edf&_ss=rmp;_ss=r $44.99 1 $44.99
Axles (2 pack) repeat-robotics.com/products/repeat-drive-axle-mk2-2pcs?variant=52037150998709 $5.00 2 $10.00
4mm 50t belt palmbeachbots.com/products/fingertech-s3m-timing-belt-150mm-50t?_pos=1&_psq=50t+bel&_ss=e&_v=1.0e&_v=1.0 $2.29 4 $9.16
FS2A 4 Channel Mini Receiver palmbeachbots.com/products/fs2a-4-channel-mini-receiver-afhds-2a-works-with-flysky-fs-i6?_pos=1&_psq=rec&_ss=e&_v=1.0e&_v=1.0 $12.99 1 $12.99
M4 Washers https://boltdepot.com/Product-Details?product=4514 $0.05 6 $0.30
M4 Lock Nut https://boltdepot.com/Product-Details?product=4793 $0.08 6 $0.48
CS M4 x 25mm https://boltdepot.com/Product-Details?product=5116 $0.14 2 $0.28
CS M4 x 20mm https://boltdepot.com/Product-Details?product=5115 $0.13 2 $0.26
CS M4 x 16 https://boltdepot.com/Product-Details?product=5114 $0.10 2 $0.20
CS M3 x 6mm https://boltdepot.com/Product-Details?product=6863 $0.06 6 $0.36
M5 x 8mm https://boltdepot.com/Product-Details?product=28936 $0.35 6 $2.10
5mm shoulder bolt (4mm x 0.7mm thread) x 16mm https://boltdepot.com/Product-Details?product=20382 $6.46 2 $12.92
CS #6-32 x 3/4" https://boltdepot.com/Product-Details?product=1240 $0.10 8 $0.80
Special shoulder bolts (4 pack) justcuzrobotics.com/products/blade-mount-bolt-6x8 $10.00 1 $10.00
Weapon ESC justcuzrobotics.com/products/tekko32-3s-6s-am32-brushless-esc-soldered $39.00 1 $39.00

Note: Any custom parts are not included in this estimate. Budget ~$100 for them. Send Cut Send is good for AR500 (forks and weapon), and ok for Titanium (wedge). For carbon fiber, go to Robot Smashing League.

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A beetleweight forked undercutter.

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