ATL Shadow Clock Sundial Kit
ATL Shadow Clock Sundial Kit – Watch Time the Ancient Way, Verified with Digital Clocks
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Every school student has checked a clock to know the time; this kit flips that curiosity into a hands-on investigation of how sunlight tells time. Build a working paper sundial tuned exactly to your school’s latitude, then record shadow positions every hour and compare them against digital time. It bridges geography, astronomy, and data handling in a single, memorable classroom project.
What You'll Build
A freestanding paper sundial calibrated to your local latitude. You will create the gnomon and hour lines using the included templates, set it on a magnetic compass-aligned surface, and track how the shadow moves from morning to afternoon. The result is a functional timekeeping tool that pairs solar time with real clock readings, generating a logbook of solar vs. standard time offsets.
What You'll Learn
- How Earth’s rotation and axial tilt produce the apparent motion of the Sun
- The relationship between latitude and sundial hour line angles
- True solar time vs. mean time and the equation of time
- Taking precise angular measurements with a protractor and compass
Kit Contents
| Component | Quantity |
|---|---|
| Sundial Template | 3 |
| Protractor | 2 |
| Magnetic Compass | 1 |
| Pencil | 5 |
| Ruler | 2 |
| Glue Stick | 2 |
Why Buy This Kit Instead of Sourcing Parts Separately
| Factor | Sourcing Separately | Compoden Kit |
|---|---|---|
| Compatibility checks | You verify every part | Pre-tested as a system |
| Build support | Forums and scattered tutorials | AI companion trained on this exact project |
| Time to first working build | Days of debugging | Hours, with step-by-step guidance |
| Shipping coordination | Multiple sellers, multiple delays | One shipment from Bengaluru in 3-5 days |
Who This Kit Is For
This kit is designed for ATL Tinkering Lab sessions, CBSE Class 6–10 geography and science practicals, and school astronomy clubs. Students in B.Tech foundation programmes or BITS/NIT/VIT hobby clubs can also use it to bridge instrument design and celestial basics. If your project requires a reliable model that connects solar time to everyday digital clock readings, this kit delivers the essential components without unnecessary frills.
Built and Backed by Compoden
Every Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.
What if I get stuck during the build?
Open the AI companion via the QR code on the box for instant, project-specific troubleshooting. You can also send a photo to our WhatsApp support for human guidance within school hours.
How do I calibrate the sundial for my city’s latitude?
The templates include a latitude scale. Use the protractor to set the hour line angle equal to your latitude, align the compass north, and your sundial will read true local solar time accurately.
Can I compare shadow time directly with the school bell times?
Yes. Record the sundial time every hour and note the offset from your digital clock. You’ll see a difference of up to 16 minutes depending on the equation of time, which you can plot as a class data exercise.
Will the paper sundial last through a full school day outdoors?
The kit includes three templates so you can build a fresh one for each demonstration, or reinforce it with the included glue stick and a firm base. Wind and moisture should be avoided, but in typical Indian school conditions a single build holds up for a full day.
Build a paper sundial calibrated to local latitude — compare shadow time to digital time throughout the school day.
What's in this kit
- Sundial Template x3
- Protractor x2
- Magnetic Compass
- Pencil x5
- Ruler x2
- Glue Stick x2
Ask Soldr above what you can build with this — it knows every Compoden kit this part appears in.
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items