# Seven-Hole Bubble Wand — Design Conversation Design conversation from September 7, 2026. User requests and final answers are preserved; progress updates and tool logs are omitted. Local model/image links now point to the published files. Physical printing and bubble performance have not been tested. ## User I want you to make a 3d model using blender of a bubble wand that is no longer than 7 inches and has 7 bubble holes one in the center and then 6 around it, i want you to play close attention to the ridges where the bubbles would come out and make good ridges to make good bubbles i want this to lay flat and be about .125 inches thick and lets go no wider than 3.5 inches --- ## Assistant Created in Blender with: - **6.89″ length × 3.39″ width × 0.125″ thickness** - Seven holes: one center and six surrounding - 40 rounded ridges per hole, plus recessed solution grooves - Flat underside and a verified watertight mesh [Blender model](/uploads/seven-hole-bubble-wand/seven_hole_bubble_wand.blend) · [Printable STL](/uploads/seven-hole-bubble-wand/seven_hole_bubble_wand.stl) Bubble performance still needs a physical dip test. ![Bubble wand](/uploads/seven-hole-bubble-wand/bubble_wand_preview.png) --- ## User can you make the perimeter shaped more like this to save on fillament Reference: [Perimeter sketch](/uploads/seven-hole-bubble-wand/perimeter-sketch.png) --- ## Assistant Updated with a scalloped perimeter like your sketch—**24% less solid volume**, keeping all seven ridged holes and the flat underside. Dimensions: **6.87″ × 3.06″ × 0.125″**. Verified watertight. [Blender model](/uploads/seven-hole-bubble-wand/scalloped_bubble_wand.blend) · [Printable STL](/uploads/seven-hole-bubble-wand/scalloped_bubble_wand.stl) ![Updated scalloped wand](/uploads/seven-hole-bubble-wand/scalloped_wand_preview.png) --- ## User Do you think this would work good for making bubbles? im thinking the corcles may need to be a bit closer on a similiar note i have some SLSA can i use that to make a really good bubble mixture? --- ## Assistant **I expect the wand to make bubbles, but I’d test this version before moving the circles closer.** The ridges and grooves are intended to retain solution; I haven’t physically verified how well they work. The openings are already fairly close: - **27 mm between centers** - **23.4 mm maximum opening diameter** - **3.6 mm of material between openings** - Only **0.9 mm between the surrounding solution grooves** Moving them much closer would make those grooves intersect unless I also redesigned them. My judgment is that closer spacing would mainly make the head smaller, rather than reliably improve bubble production. Test whether all seven holes hold a film after dipping, then whether they release bubbles with a gentle wave. **SLSA can be a bubble-mixture ingredient, but I wouldn’t promise an excellent wand solution from it alone.** Assuming yours is sodium lauryl sulfoacetate, it is a foaming surfactant used in bubble baths. That supports trying it, but bath foam performance doesn’t establish how well it makes free-floating bubbles. [Manufacturer information](https://www.stepan.com/content/stepan-dot-com/en/products-markets/product/LATHANOLLALCOARSE.html) Research on bubble solutions shows that the balance matters: more surfactant isn’t necessarily better, glycerin can reduce evaporation, and small amounts of suitable long-chain polymers can help films stretch. Those findings don’t establish a tested SLSA recipe for this wand. [Bubble-solution research](https://pubmed.ncbi.nlm.nih.gov/36547787/) Handle dry SLSA carefully: avoid breathing the powder and protect your eyes; the manufacturer recommends goggles, a dust mask, and gloves. [Handling guidance](https://www.stepan.com/content/dam/stepan-dot-com/webdam/website-product-documents/product-bulletins/surfactants/LATHANOLLAL.pdf) **What brand/product is your SLSA, and does its label list an active percentage?** That will help me suggest a sensible small test batch instead of guessing the concentration. --- ## User ok lets x slsa, what household ingredients would make a great bubble solution --- ## Assistant **Dish soap, water, and light corn syrup are a good household combination for your wand.** Start with this small batch: | Ingredient | Amount | |---|---:| | Water—preferably distilled | 2 cups | | Liquid dish soap, such as Dawn or Joy | ¼ cup | | Light corn syrup | 2 tablespoons | This doubles the [Science Buddies bubble recipe](https://www.sciencebuddies.org/stem-activities/blowing-bubbles). **If you have plain glycerin, substitute the same amount for the corn syrup**; both help bubbles last longer. 1. Stir the corn syrup into the water until dissolved. 2. Add the dish soap and stir gently, avoiding a frothy surface. 3. Let the foam settle before using. For your flat wand, pour the solution into a shallow dish wide enough to dip the entire head. Wet all seven openings, lift it out, and try a gentle wave or steady breath. **I’d test this simple mix first** before changing the wand geometry or adding more ingredients.