# Carrier-Board for maxon's ESCON2 Nano 24/2 **URL:** \ **Category:** University Teams\ **Tags:** sponsoring\ **Created:** [September 18, 2026, 1:53pm UTC](https://community.aisler.net/t/carrier-board-for-maxons-escon2-nano-24-2/5900 "2026-09-18T13:53:35Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Team-S-A-R-C-A-T](https://community-cdn.aisler.net/letter_avatar_proxy/v4/letter/t/e480ec/32.png) [@Team-S-A-R-C-A-T](https://community.aisler.net/u/Team-S-A-R-C-A-T)\ **Post date:** [September 18, 2026, 1:53pm UTC](https://community.aisler.net/t/carrier-board-for-maxons-escon2-nano-24-2/5900/1 "2026-09-18T13:53:35Z")
# [sarcat-escon-carrier](https://aisler.net/p/BUDFJXBN) (AISLER sharable link) ## Preamble Hello fellow robotics enthusiasts and RoboCup competitors, throughout the last season, we worked on many PCBs for our robot. We decided this one is worth sharing because it solves a niche but real design problem and has been essential to our robot this year. When using brushless motors, especially somewhat decent or premium ones, designing an entirely separate PCB for your motor controllers is inevitable. Thanks to the quality of its products and its long-standing support for RoboCupJunior teams, maxon has become a popular choice for both motors and motor controllers. I’m fairly sure one of the most common brushless controllers in the higher leagues is the [ESCON Module 24/2](https://www.maxongroup.de/maxon/view/product/control/4-Q-Servokontroller/466023). It’s the go-to option with maxon motors because of its relatively inexpensive price tag and because it works fantastically within the maxon ecosystem. ![image](https://community-cdn.aisler.net/uploads/default/original/2X/f/fbeddd5f00185dbb2be683273a4e82c7b7a075a5.jpeg) ## The problem The one issue we had with the ESCON Module 24/2 is its size. Even though it’s remarkably compact for what it can do, it’s still large in absolute terms. Our design had a height limitation that required everything power- and motor-related to sit in the bottom compartment of the robot, and fitting five of these controllers there turned out to be an engineering nightmare with no reliable solution available. ## The solution Since we couldn’t change our design, we had to change the part. Testing new parts during a season is always a risk, so we weren’t entirely happy about this. But then maxon released a solution, and with it a new challenge: the [ESCON2 Nano 24/2](https://www.maxongroup.de/maxon/view/product/control/4-Q-Servokontroller/809635). With the same capabilities as its predecessor (plus a few more) and a similar price tag, it was perfect. ![image](https://community-cdn.aisler.net/uploads/default/original/2X/a/a5a3caa3834a90a5a8b44b8757c9831698ad1fed.png) ## The second problem The catch with a significantly smaller component (about 38%) that does the same job is that the 24 pins on 2.54 mm headers have been replaced by a single 60-pin, 0.2 mm pitch board-to-board connector: ![image](https://community-cdn.aisler.net/uploads/default/original/2X/7/75023df12311fc975fd32c3a5094408ade97c53d.jpeg) Working with a connector like this without industrial resources is a serious challenge at every stage. - Designing: it soon became clear that we needed at least four layers to fit all the traces with enough clearance. - Manufacturing: the gap between the pads is just 0.17 mm. - Assembly: that’s a whole different problem soldering the pins without bridging them. However, since this was our only feasible option, and with the support of AISLER, we managed to create a working 4-layer board with an ENIG finish: ![sarcat-escon-carrier](https://community-cdn.aisler.net/uploads/default/original/2X/5/5d7cce31733d064ed50ef3fbcab169d6219b4001.png) ![sarcat-escon-carrier](https://community-cdn.aisler.net/uploads/default/original/2X/3/30b921897d815334803dd6dc82e456737a60b5c6.png) The design files for our board, along with short documentation and a BOM, are available on: [our GitLab](https://gitlab.com/bohlebots-sarcat/hardware/sarcat-escon-carrier/) While not everything on this PCB is groundbreaking, it was essential to our robot. I hope this helps anyone interested. Best regards, Jan ---
**Author:** ![Sarah-from-AISLER](https://community-cdn.aisler.net/user_avatar/community.aisler.net/sarah-from-aisler/32/2193_2.png) [@Sarah-from-AISLER](https://community.aisler.net/u/Sarah-from-AISLER)\ **Post date:** [September 18, 2026, 2:20pm UTC](https://community.aisler.net/t/carrier-board-for-maxons-escon2-nano-24-2/5900/2 "2026-09-18T14:20:50Z")
Hey @Team-S-A-R-C-A-T thank you for your post! Swapping a component mid-season because the bottom compartment of the robot wouldn’t budge sounds… like a nervy call tbh 😅 How did the season go in the end with the new controllers?