Every Mon.–Thurs., except Oct. 19 & 20. U-M’s highly disciplined 200+ member marching band or sections thereof can be seen and heard practicing on the new Elbel Field, across the street from the old Elbel Field. All welcome to find a spot in the bleachers and get a sneak preview of upcoming halftime shows. Rehearsals usually last 1–2 hours. Also, at 6 p.m. on Friday, Oct. 16, the band hosts its monthly free Open Stadium Rehearsal at Michigan Stadium. 4:45 p.m., Hill at Fifth Ave. Free. (734) 764–0582.

Oct. 1, 8, 15, & 22 (different times). All invited to work on their own projects using the library’s tools, including silhouette cutting machines, die cutters, embossers, and button makers (Oct. 1); 3D printers, laser engravers, and 3D pens (Oct. 8); sewing machines, silhouette vinyl cutters, and heat presses (Oct. 15); and soldering equipment and electronic components (Oct. 22). 5:30–7:30 p.m. (Oct. 1, 15, & 22) & 11 a.m.–1 p.m. (Oct. 8), AADL Downtown, Secret Lab. Free. (734) 327–4200.

Every Thurs. Runners of all abilities invited to join this eclectic group of runners ranging from people training for their first 5K to ultramarathoners. Sessions are typically interval-based track workouts, followed by socializing at a nearby brewery. 6 p.m., Ferry Field, State at Hoover. May meet elsewhere if the weather is bad. Free. See walline.wixsite.com/bdtc to sign up for email updates on each week’s workout.   

Every Thurs., Sat., & Mon. (different AARC locations). Runners of all abilities invited to join a 5K mapped route (Thurs. & Mon.) or either a beginner or advanced group run (Sat.). AARC Colonnade (6 p.m. Thurs.), 2621 Plymouth Rd.; AARC Traver Village (7 a.m. Sat.), 901 W. Eisenhower; and Corner Brewery (6 p.m. Mon.), 720 Norris, Ypsi. Free. annarborrunningcompany.com.  

Every Thurs. Moderate-paced ride, 25 to 35 miles, along the less-traveled unpaved roads around Chelsea. Bring a chair and a beverage or snack for a postride tailgate. See aabts.org for weather cancellations or delays. 6 p.m. sharp, meet at Aberdeen Bike and Outdoors, 1101 Main, Chelsea. Email [email protected] for each week’s route. Free. (313) 980–5277.   

Every Thurs. All invited to drop in with broken electronics, furniture, toys, or any other item they’d like to try to repair or repurpose with the help and guidance of AHA members. Repairs not guaranteed. 6–8 p.m., basement of 255 E. Liberty, ste. 225. Free; donations welcome. [email protected], meetup.com/allhandsactive/events. 

Every Sun.–Thurs. (different times). All invited to work on their knitting, crochet, weaving, and embroidery projects. 6–8 p.m. (Mon.–Thurs.) & 1–3 p.m. (Sun.), 401 N. Fourth Ave. Free. (734) 780–7867.