{"id":2118,"date":"2012-06-25T19:37:11","date_gmt":"2012-06-26T00:37:11","guid":{"rendered":"http:\/\/www.summet.com\/blog\/?p=2118"},"modified":"2012-06-25T19:37:11","modified_gmt":"2012-06-26T00:37:11","slug":"nozzle-size-material","status":"publish","type":"post","link":"https:\/\/www.summet.com\/blog\/2012\/06\/25\/nozzle-size-material\/","title":{"rendered":"Trying out different nozzle sizes and material"},"content":{"rendered":"<p>The nozzle size has an effect on the amount of air (expressed in milliseconds of pump activation) that will form into a single bubble. In water, even if you launch a stream of several bubbles, they typically join together relatively quickly to form a single bubble. However, with Glycerin the bubbles are more likely to separate, and the smaller bubbles rise slower, eventually getting caught and integrated into a larger following bubble.  By increasing the nozzle size from a 1\/8 inch hose barb to a 1\/4 inch hose barb, I found that I could create larger more regular bubbles, and launch them closer together (temporally and vertically).<\/p>\n<p><iframe loading=\"lazy\" width=\"420\" height=\"315\" src=\"http:\/\/www.youtube-nocookie.com\/embed\/Um3Q7MRp9q4?rel=0\" frameborder=\"0\" allowfullscreen><\/iframe><\/p>\n<p>I also switched my nozzle material from Nylon (which <a href=\"http:\/\/www.summet.com\/blog\/2012\/05\/21\/acrylic-welding-solvent-bubble-display-nozzle-test-1\/\">acrylic weld<\/a> won&#8217;t weld, and required the use of epoxy) to Clear Polycarbonate, which acrylic weld WILL weld. This allows me to use a single welding solvent to construct the entire tube assembly, and gives me more confidence in the bond. (Although the Epoxy appears to be working well&#8230;.) Because they are clear I can visually inspect the weld between the bottom of the tube and the nozzle. Also, they blend into the acrylic bottoms of the tubes and give a much nicer visual appearance.  The specific part I used to get both polycarbonate and a 1\/4&#8243; output was a Single-Barbed Reducing Coupling for 1\/4&#8243; X 1\/8&#8243; ID Tubes. The nylon 1\/8&#8243; nozzle cost 0.26 USD, the same part in clear polycarbonate is 0.47 USD, and if you want a 1\/8&#8243; to 1\/4&#8243; coupling it costs 0.70 USD, so the cost for the larger clear nozzle is nearly triple the plain old nylon part, but as a percentage of the total tube cost it is negligible. <\/p>\n","protected":false},"excerpt":{"rendered":"<p>The nozzle size has an effect on the amount of air (expressed in milliseconds of pump activation) that will form into a single bubble. In water, even if you launch a stream of several bubbles, they typically join together relatively &hellip; <a href=\"https:\/\/www.summet.com\/blog\/2012\/06\/25\/nozzle-size-material\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[109],"class_list":["post-2118","post","type-post","status-publish","format-standard","hentry","category-projects","tag-bubbledisplay"],"_links":{"self":[{"href":"https:\/\/www.summet.com\/blog\/wp-json\/wp\/v2\/posts\/2118","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.summet.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.summet.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.summet.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.summet.com\/blog\/wp-json\/wp\/v2\/comments?post=2118"}],"version-history":[{"count":0,"href":"https:\/\/www.summet.com\/blog\/wp-json\/wp\/v2\/posts\/2118\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.summet.com\/blog\/wp-json\/wp\/v2\/media?parent=2118"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.summet.com\/blog\/wp-json\/wp\/v2\/categories?post=2118"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.summet.com\/blog\/wp-json\/wp\/v2\/tags?post=2118"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}