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What's the most innovative solution you've come up with for a tricky engineering problem?

Lisa Miles

As they say on TikTok... I'll go first! Wink

So, I'm not an engineer, but I did come up with a nifty solution to a persistent annoyance.

I used to work for an electronics component supplier as part of the High Security Team. Team members had specific clients and orders that only they could handle. This meant we had a bunch of stickers to apply to items or packaging, and these stickers came on rolls. Imagine having about 10 rolls of different stickers cluttering your desk at any given time. It was a nightmare! You had to peel off each sticker with your fingernails, which meant taking off your gloves (we wore gloves to avoid getting fingerprints on delicate components—I've got another story about that, but I'll save it for later! Sweat smile). Plus, the rolls would unravel and scatter all over the place if you weren't careful.

After getting fed up with constantly rewinding rolls and doing the gloves-on, gloves-off dance, I decided to come up with a solution. Inspiration struck when I saw a box of hole punch reinforcer stickers in the stationery cupboard. The box had a clever design that dispensed the stickers automatically when you pulled down on the backing paper.

I scoured the office for scrap materials and found the perfect box to hold five rolls snugly. I cut two slots in the sides of the box and used a piece of stiff tubing to hang the rolls. I also cut out four circles of card to place between the rolls so they could spin freely without getting tangled. Once I threaded the rolls onto the tubing and hung them in the box, I added two narrow strips of card along the top edge and the front of the box. When the roll was threaded underneath these strips, pulling down on the backing paper would dispense a sticker that you could easily lift off with gloved hands. Problems solved! Blush

My colleagues loved it so much that they 'commissioned' me to make one for each of them too! Smile

So, what's the most innovative solution you've come up with for a tricky engineering problem? I'd love to hear your stories, whether it's a clever hack, a creative workaround, or a full-blown invention! 

  • Thank you for the warm welcome, Lisa. I don't know if the problem was tricky :) but, I had to write an updated SOP for root cause investigation on troubleshooting a water ingress problem into the oil coolers (tube and shell heat exchangers) of a boiler feed pump geared turbo drive. There were two possible ingress points to contaminate the oil - through the waterbox connected to the shell by a flange and sealed with an NBR O-ring and a steel gasket; the other possibility was a water tube rupture. The idea was to find a cost-effective way to discover the root cause and prevent recurring problems. 

    Solution: 1. Confirm O-ring size and ensure it's the recommended type according to OEM specifications.

    2. Check the groove measurement where the O-ring seats and ensure it's within recommended range.

    3. Check the metal gasket for signs of wear. Take measurements and compare with OEM specifications.

    4. Check for signs of wear on the gasket seat and confirm with OEM specifications.

    5. Pressure testing: Method 1: Close the water/cooling medium discharge line and open the vent valve. open water (or cooling medium) inlet valve, to allow flow into the water boxes and tubes. Close the inlet line when you've confirmed that water has filled the tubes and water boxes. Go back after some hours, open the oil drain line on the cooler shell. If water comes out, there's an ingress problem. (Note that all this is carried out after the oil has been drained.)

    6. Use a tube pressure test gun. Plug tubes with pbroblems.

    Results: unit running again. Reduced cooling efficiency. Coolers will last until they are completely replaced.

    Lesson: Measure! Measure! Measure!

  • One innovative solution I worked on was during a data centre project where conduit installation routes became blocked due to structural elements, cable trays, and other MEP services already installed in the area.

    Completely re-routing the installation or waiting for redesign approvals would have caused delays to the project. After coordinating with the site team, engineers, and other trades, we reviewed the available space and proposed an alternative routing arrangement that complied with the project requirements and avoided clashes with existing services.

    This approach reduced rework, saved installation time, minimized material wastage, and helped keep the project on schedule without compromising safety or quality.

    From my experience, engineering innovation on site is often about finding practical and efficient solutions to real-world challenges while maintaining compliance with drawings and standards.

  • Thanks for this brave and inspiring discussion, mine has been intensively exploring the features of an advanced metering infrastructure software (AMI) for the detection of energy theft and remotely monitoring over ten thousand smart meters in APLE (Aba Power Limited Electric), a distribution arm of Geometric Power Group. Embedded features such as alarm/alert triggers for tamper proof cover, seal breakage are synchronized with the tamper protective codes for which the AMI records in the log. Also, cases of current imbalance, unusual/high neutral current, low power factor indicating either a fault or an unauthorized act have taken place to alter the original installation as certified during commissioning flags as meter bypass or tampering at the back end.

    In addition to cases of recorded current (significant amperes) in the meter with the meter no-credit relay open, indicating the end user has exhausted the credit but using supply with recorded current, thereby signally a HIGH BYPASS status. Just a brief description, but more detailed in practice and application.

    Regards.

  • Hi all, great to join the community! Here's my story:

    During a protection coordination review for a 33 kV solar collector system, I noticed something off - one of the overcurrent relays had its pickup current set below the actual full-load current of the feeder it was meant to protect. It looked fine against the equipment nameplate, but in reality it meant the relay could trip during normal operation, not just during a fault.

    Digging deeper, I realized the nameplate rating alone was misleading  I had to work out the true sustained load from the connected inverters' DC:AC ratio, which turned out to be significantly higher than assumed. With that corrected figure, I reset the pickup with proper margin above full load, and revisited grading margins elsewhere in the system to keep fault clearing fast without losing coordination.

    Not the most dramatic fix, but a solid reminder that protection settings are only as reliable as the assumptions feeding them. Curious if others here have run into similar "looked right on paper" surprises in protection or grid-connection work!

  • Thanks for this interesting question.

    In summary, Mine was using AMI (advanced metering infrastructure) to remotely track irregularities and 'losses' including the detection of energy theft cases of metering installation across a power distribution ring fenced area.

    It was a fruitful exercise and practice other than visiting these meters physically which could result to significant man-hour losses with operational cost implication.

    Regards.

  • in reply to Lisa Miles

    could be great .. or very embarrassing !

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