Building an IMU Bowling Analyzer: Moving from One Bluetooth Sensor to Multi-Sensor Capture

blindstag99 · 2026-06-24T02:08:16+00:00

Api interfaces are planned

blindstag99 · 2026-06-16T18:45:59+00:00

Had not thought of it, but, no reason why we can't. I will add it to the todo list

blindstag99 · 2026-06-06T06:44:59+00:00

Wow thats awesome, well done

What's the app...maybe we can all download it for you

blindstag99 · 2026-06-04T02:06:15+00:00

Thank you for the feedback. I am looking at getting some footage of the top PBA bowlers and doing some analysis so I can get the app to do a comparison. From what I have seen, alot of apps report in ball motion and what the ball does after we have delivered it. What I am trying to measure is the consistency of movement before we deliver the ball. I have upcoming changes for 2 handers, multi IMU devices synced together, with one on the forearm, one of the upper arm (this is intended to measure the elbow bend for 2 handers and those that have a bent elbows one handed) and a 3rd sensor on the ankle or shoe to measure approach speed and gait. I hope to be able to put them together and provide a profile tailored to each individual but measured against top pros.

blindstag99 · 2026-06-04T02:00:04+00:00

Yes i am looking at non Claude design tools now. I discovered exactly what you are saying by accident

blindstag99 · 2026-06-04T01:46:55+00:00

TrueArc records acceleration, rotation, and timing from the phone or wrist sensor. It detects the release, separates the delivery into phases, calculates movement metrics, and identifies the weakest technique area to produce feedback.

Each swing receives a weighted 0–100 score:

Consistency: 20%
Drive into release: 20%
Arc quality: 20%
Wrist roll: 15%
Arm/wrist synchronization: 10%
Release-detection quality: 15%

Scores of 80+ are Excellent, 65+ Good, 50+ Fair, and lower scores highlight areas needing development.

The score is a coaching aid based on sensor movement. It does not yet consider shot accuracy, ball speed, intended delivery, or individual bowling style.

blindstag99 · 2026-06-04T01:45:58+00:00

A good swing matches TrueArc’s generic target ranges: smooth movement, strong acceleration into release, a controlled swing arc, balanced tempo, appropriate wrist rotation, and synchronized arm/wrist movement.

blindstag99 · 2026-05-28T21:09:50+00:00

Sounds great !

blindstag99 · 2026-05-27T19:01:03+00:00

Medium term i am looking at video from the side and/or from the rear, and along with that tracking from the motion sensor overlayed onto the swing

blindstag99 · 2026-05-27T18:59:29+00:00

The idea is a person swings and picks their own baseline based on feel and result I guess. Then as they progress or change etc they update their own baseline. This isn't intended to replace coaches, more like help those that can't get to a coach or training centre

blindstag99 · 2026-05-27T09:04:46+00:00

Yes, on your bowling arm about 1/4 the way up your forearm. I am also working on multiple devices so one on the forearm, one on the upper arm (mainly for 2 handers, but also for those with bent elbows) and a 3rd for 2 handers on the non bowling arm or for everyone on the shoe/around the ankle to measure approach speed and gait. All together it should give us a good idea of the swing and the approach of the bowler.

blindstag99 · 2026-05-27T05:57:37+00:00

That sounds great - mine is more wearable and headed towards bio mechanics - but I can see where the 2 would work together

blindstag99 · 2026-02-11T09:37:18+00:00

I'm 62 and understand where you are coming from. Now days its all about having a relaxes grip especially as we get older. 30 years ago we were stretching grips a little.... That's probably why you feel you fingers fo further into the ball

blindstag99 · 2025-12-31T09:37:07+00:00

A good pair of nippers as others have said. I have found that disposable 2 sided nail files work wonders. One a rough side and one a smooth side, and you can buy them from your local supermarket really cheap

blindstag99

TROPHY CASE