{"id":175748,"date":"2024-11-08T19:25:13","date_gmt":"2024-11-08T08:25:13","guid":{"rendered":"https:\/\/www.howtocookthat.net\/public_html\/?p=175748"},"modified":"2024-11-08T19:43:20","modified_gmt":"2024-11-08T08:43:20","slug":"diy-3d-paste-extruder-chocolate-printer","status":"publish","type":"post","link":"https:\/\/www.howtocookthat.net\/public_html\/diy-3d-paste-extruder-chocolate-printer\/","title":{"rendered":"DIY 3D paste extruder and chocolate printer"},"content":{"rendered":"<p><iframe loading=\"lazy\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/kFhfX2z-vXQ?si=Va1W8jlzxsuaoBxv?rel=0\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p>This project has involved a huge learning curve.  Optimistically I hoped that I would simply download an existing paste extruder 3d model, print it and then make some small tweaks.  Instead I discovered that the existing extruders did not work for fine extrusion through a nozzle.  That meant that I needed to learn about gear ratios and how to make a new 3d model in blender.  If you&#8217;ve ever used blender you&#8217;ll know that it is not an easy program for beginners.  Weeks later and I finally created a model that works.  <\/p>\n<p>In the future I&#8217;d love to tinker with the design and add a heating pad and thermistor to the syringe to allow for chocolate printing, this could be wired in where the printer currently controls the bed temperature.  Currently only the nozzle is heated using the heater block.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/PotPlayerMini64_aZf0oeqh3l-550x309.jpg\" alt=\"3d printing food\" width=\"550\" height=\"309\" class=\"aligncenter size-large wp-image-175765\" data-wp-pid=\"175765\" srcset=\"https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/PotPlayerMini64_aZf0oeqh3l-550x309.jpg 550w, https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/PotPlayerMini64_aZf0oeqh3l-300x169.jpg 300w, https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/PotPlayerMini64_aZf0oeqh3l-768x432.jpg 768w, https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/PotPlayerMini64_aZf0oeqh3l-1536x864.jpg 1536w, https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/PotPlayerMini64_aZf0oeqh3l-1200x675-cropped.jpg 1200w, https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/PotPlayerMini64_aZf0oeqh3l-400x225.jpg 400w, https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/PotPlayerMini64_aZf0oeqh3l.jpg 1920w\" sizes=\"(max-width: 550px) 100vw, 550px\" \/><\/p>\n<p>To make this project you will need:<br \/>\n* Sovol svo6 3d printer<br \/>\n* PLA filament in whatever colour you want to print your extruder.<br \/>\n* An extra sovol sv06 printer head. ($49) I bought mine directly from sovol3d.com.  Look under spare parts, this gives you the motor, heat block with thermistor and nozzle, inductive proximity sensor switch for Z probe auto bed leveling, the mount for that sensor, adapter board PCB breakout module and all the little cables that connect those parts together.  You don&#8217;t need the fans so you can unplug those from the PCB.<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/msedge_3T2njndat6-e1730780426883.png\" alt=\"diy paste extruder\" width=\"297\" height=\"300\" class=\"aligncenter size-full wp-image-175749\" data-wp-pid=\"175749\" srcset=\"https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/msedge_3T2njndat6-e1730780426883.png 297w, https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/msedge_3T2njndat6-e1730780426883-100x100.png 100w\" sizes=\"(max-width: 297px) 100vw, 297px\" \/><br \/>\n* Electronic cable and a soldering iron &#8211; to lengthen the motor cable.<br \/>\n* A 60mL (2.03 fluid ounces) luer lock syringe<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/Screenshot-2024-11-05-151216-e1730780000580.png\" alt=\"diy paste extruder\" width=\"464\" height=\"119\" class=\"aligncenter size-full wp-image-175767\" data-wp-pid=\"175767\" srcset=\"https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/Screenshot-2024-11-05-151216-e1730780000580.png 464w, https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/Screenshot-2024-11-05-151216-e1730780000580-300x77.png 300w, https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/Screenshot-2024-11-05-151216-e1730780000580-400x103.png 400w\" sizes=\"(max-width: 464px) 100vw, 464px\" \/><br \/>\n* 1 Bicycle Quick Release Seat Post Clamp ($2.50 on aliexpress)<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/Screenshot-2024-11-05-112718.png\" alt=\"\" width=\"416\" height=\"447\" class=\"aligncenter size-full wp-image-175750\" data-wp-pid=\"175750\" srcset=\"https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/Screenshot-2024-11-05-112718.png 416w, https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/Screenshot-2024-11-05-112718-279x300.png 279w, https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/Screenshot-2024-11-05-112718-300x322.png 300w\" sizes=\"(max-width: 416px) 100vw, 416px\" \/><br \/>\n* T8 Lead Screw and Nut Diameter 8mm Pitch 2mm Length 200mm<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/Screenshot-2024-11-05-112934.png\" alt=\"diy chocolate printer 3d\" width=\"421\" height=\"377\" class=\"aligncenter size-full wp-image-175751\" data-wp-pid=\"175751\" srcset=\"https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/Screenshot-2024-11-05-112934.png 421w, https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/Screenshot-2024-11-05-112934-300x269.png 300w, https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/Screenshot-2024-11-05-112934-335x300.png 335w\" sizes=\"(max-width: 421px) 100vw, 421px\" \/><br \/>\n* A larger printer nozzle, I used a 1.5mm.   If you are intending on using this in the food industry you will need to source a stainless steel one.<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/Screenshot-2024-11-05-164755.png\" alt=\"food extruder 3d printer make your own cheap\" width=\"251\" height=\"365\" class=\"aligncenter size-full wp-image-175776\" data-wp-pid=\"175776\" srcset=\"https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/Screenshot-2024-11-05-164755.png 251w, https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/Screenshot-2024-11-05-164755-206x300.png 206w\" sizes=\"(max-width: 251px) 100vw, 251px\" \/><br \/>\n* An adapter to attach the luer lock syringe to the top of the heat block (luer to m6 thread adapter).  These cost about $1 on aliexpress<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/msedge_Kl3kKXoANE.png\" alt=\"\" width=\"385\" height=\"334\" class=\"aligncenter size-full wp-image-175775\" data-wp-pid=\"175775\" srcset=\"https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/msedge_Kl3kKXoANE.png 385w, https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/msedge_Kl3kKXoANE-300x260.png 300w, https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/msedge_Kl3kKXoANE-346x300.png 346w\" sizes=\"(max-width: 385px) 100vw, 385px\" \/><br \/>\n* A silicone mat to print onto and two strong magnets to hold it in place.  I did try using baking paper but the food did not grip well enough to print.<br \/>\n* screws and nuts to put it altogether:<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/Screenshot-2024-11-05-115519.png\" alt=\"diy paste extruder 3d p[rint food chocolate\" width=\"387\" height=\"171\" class=\"aligncenter size-full wp-image-175753\" data-wp-pid=\"175753\" srcset=\"https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/Screenshot-2024-11-05-115519.png 387w, https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/Screenshot-2024-11-05-115519-300x133.png 300w, https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/Screenshot-2024-11-05-115519-400x177.png 400w\" sizes=\"(max-width: 387px) 100vw, 387px\" \/><br \/>\n3 x Hex Socket Head Cap Bolt diameter M3 length 75 to 80mm<br \/>\n2 x Hex Socket Head Cap Bolt diameter M3 length 50mm<br \/>\n2 x Hex Socket Head Cap Bolt diameter M3 length 10mm<br \/>\n2 x Hex Socket Head Cap Bolt diameter M3 length 35mm<br \/>\n2 x Hex Socket Head Cap Bolt diameter M3 length 8mm these ones need to be low profile for clearance, ie the top head bit can&#8217;t be too thick<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/Screenshot-2024-11-05-115433.png\" alt=\"make your own 3d chocolate printer\" width=\"519\" height=\"397\" class=\"aligncenter size-full wp-image-175752\" data-wp-pid=\"175752\" srcset=\"https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/Screenshot-2024-11-05-115433.png 519w, https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/Screenshot-2024-11-05-115433-300x229.png 300w, https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/Screenshot-2024-11-05-115433-392x300.png 392w\" sizes=\"(max-width: 519px) 100vw, 519px\" \/><br \/>\n7 x M3 nuts<br \/>\nOptional if you want to try and make this work for chocolate:<br \/>\n* Heating pad a suitable size to wrap around the syringe (these are available on aliexpress search for electric heating pad 3d printer)<br \/>\n* Flexible aluminium sheet to stick the heating pad on to and wrap around the syringe, this way the syringe can still be washed<br \/>\n* A thermistor <\/p>\n<p>After finishing the video I made some more refinements to the model.  Those changes were: lengthen the top and bottom gear holders to accomodate the bigger gear, lengthen the bracket, make the hinges stronger, add a place to attach the sensor, add a holder for the heater block to sit and decrease the depth behind the syringe so that the PCB board sits closer to the heat-block and the cables are not as stretched.  There were also other slight changes to screw positions.  After making all those changes the model was not manifold and would not slice to 3D print, so I ended up having to pay someone who knew a lot more about blender than me to fix the non-manifold issue.  So as much as I intended to make this free &#8211; hopefully you now understand why it is not.<br \/>\n* My STL files to download and print on your 3d printer<\/p>\n<div>\t<p class=\"product woocommerce add_to_cart_inline \" style=\"\">\n\t\t\n\t\t<a href=\"?add-to-cart=175762\" rel=\"nofollow\" data-product_id=\"175762\" data-product_sku=\"\" data-quantity=\"1\" class=\"button buy-it-now-button add_to_cart_button product_type_simple\"><span class='button-label'>Buy<\/span><span class=\"woocommerce-Price-amount amount\"><bdi><span class=\"woocommerce-Price-currencySymbol\">&#36;<\/span>5.99<\/bdi><\/span><\/a>\n\t<\/p>\n<img decoding=\"async\" src=\"http:\/\/howtocookthat.net\/public_html\/wp-content\/uploads\/2014\/09\/paypalvisaetcforunderselz\" \/><\/div>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/IMG_3488-550x733.jpg\" alt=\"paste extruder for chocolate and food\" width=\"550\" height=\"733\" class=\"aligncenter size-large wp-image-175757\" data-wp-pid=\"175757\" \/><br \/>\nAbove is the, almost, current version printed out and assembled.  I have since thickened up the support bracket, because now that it is longer it needs to be stronger.<br \/>\nOr if you want to print the first models shown in the video (note they are not strong enough to extrude through a nozzle but a good starting point if you want to design your own) <a href=\"https:\/\/www.printables.com\/model\/640824-pasty-print-paste-extruder-for-chocolate-ceramic-e\" rel=\"noopener\" target=\"_blank\">first one<\/a>, <a href=\"https:\/\/www.printables.com\/model\/180119-paste-extruder-to-suit-xchange\" rel=\"noopener\" target=\"_blank\">second one<\/a> and <a href=\"https:\/\/www.thingiverse.com\/thing:482873\" rel=\"noopener\" target=\"_blank\">another one<\/a>.<\/p>\n<h4>To set up the extruder on the printer<\/h4>\n<p>Turn off the printer and unplug from the wall.<br \/>\nUnplug the main cable to the printer head pcb.<br \/>\nUndo the 3 screws that hold the printer head in place and carefully store the printer head so that you can print with filament again later.<br \/>\nAdd the extruder into place and attach using the same 3 screws.<br \/>\nPlug the cable into the printer head pcb (it won&#8217;t work if you forget this step).<br \/>\nPlug the printer in to the wall and turn it on.<br \/>\nSet z offset, to do that select <em>bed leveling \/ probe z offset<\/em> and then adjust the height of the nozzle manually (NOTE do not choose auto home as it requires the nozzle to heat up very hot &#8211; which will melt the syringe and PLA holder).<\/p>\n<p>When slicing your model in sovol cura choose<em> SVOL-SVO6<\/em> from the top tab then<em> manage printers \/ machine settings \/ extruder 1<\/em><br \/>\nTake a screenshot of what these settings are normally so that you can change it back later when you swap back to filament.<br \/>\nChange the nozzle size to match the nozzle that you purchased, mine was 1.5mm.<br \/>\nClick on the printer tab and in the <em>start gcode<\/em> box add:<br \/>\n<strong>M302 P1<\/strong> then close this popup<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/PotPlayerMini64_oWcM1ux51S-550x408.png\" alt=\"diy food printer\" width=\"550\" height=\"408\" class=\"aligncenter size-large wp-image-175755\" data-wp-pid=\"175755\" srcset=\"https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/PotPlayerMini64_oWcM1ux51S-550x408.png 550w, https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/PotPlayerMini64_oWcM1ux51S-300x223.png 300w, https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/PotPlayerMini64_oWcM1ux51S-768x570.png 768w, https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/PotPlayerMini64_oWcM1ux51S-400x297.png 400w, https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/PotPlayerMini64_oWcM1ux51S.png 1290w\" sizes=\"(max-width: 550px) 100vw, 550px\" \/><br \/>\nclick on normal on the top tabs and depending on what you are printing make changes here to the <strong>nozzle temperature<\/strong>,<strong> bed temperature<\/strong> (I set mine to 15C (59 degrees Fahrenheit) so it did not heat, because the room was warmer than that) and also play with <strong>layer height<\/strong> and <strong>line width<\/strong>.  This will vary depending on what food you print.<br \/>\nOnce you are printing you can alter the settings on the printer itself, look under <strong>tune<\/strong> for <strong>speed<\/strong> and <strong>flow<\/strong>.  Slowing the print speed down to 10-20% significantly improved the output for food printing.<br \/>\nThings to try printing: nutella, whipped butter, cream cheese, chocolate ganache, frosting or basically anything that you would be able to pipe from a normal piping bag through a fine nozzle. <\/p>\n<h4>To swap back to filament printing<\/h4>\n<p>On the printer itself turn it off and unplug from the wall.<br \/>\nSwap back to the normal print head &#8211; remember to plug the cable into the printer head.<br \/>\nTurn it back on then on the printer screen select: configuration \/ restore defaults<br \/>\nThen calibrate the printer &#8211; most importantly set the probe z offset.<br \/>\nIn sovol cura delete M302 P1 from the gcode and change the settings in manage printers \/ machine settings \/ extruder 1 and printer back to normal then close those tabs<br \/>\nOn the main cura screen click on normal to open print settings, next to profile choose a different profile such as fine.  Cura will ask you do you want to keep or discard the changes you made to settings. Click &#8216;discard&#8217; and all the layer height, line width etc will go back to standard.  You can now select the &#8216;normal&#8217; profile and it will be the standard settings.<\/p>\n \n<h4 align=center>My Cookbook<\/h4>\n<p align=center>\n<a href=\"https:\/\/www.howtocookthat.net\/public_html\/cook-crazy-sweet-creations-cookbook-ann-reardon\/\" target=\"_blank\"><img decoding=\"async\" width=\"40%\" src=\"https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2021\/03\/hardcover-book-mockup-of-a-woman-reading-3409-el1.png\" alt=\"ann reardon crazy sweet creations cookbook\" title=\"Crazy Sweet Creations Cookbook\" style=\"opacity: 0.8; -moz-opacity: 0.8;\" class=\"fade\" \/><\/a>\n<\/br>\nStores that sell my book listed by country:  \n<a href=\"http:\/\/bit.ly\/ARcookbook\" rel=\"nofollow\" target=\"_blank\">http:\/\/bit.ly\/ARcookbook<\/a>\n<\/br>\nAll recipe quantities in the book are in grams, ounces and cups.<\/p>","protected":false},"excerpt":{"rendered":"<a href=\"https:\/\/www.howtocookthat.net\/public_html\/diy-3d-paste-extruder-chocolate-printer\/\"><img width=\"150\" height=\"150\" src=\"https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/thumbnail-3d-printing-150x150.jpg\" class=\"alignleft tfe wp-post-image\" alt=\"3d chocolate printer\" decoding=\"async\" loading=\"lazy\" srcset=\"https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/thumbnail-3d-printing-150x150.jpg 150w, https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/thumbnail-3d-printing-100x100.jpg 100w, https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/thumbnail-3d-printing-1200x1200-cropped.jpg 1200w, https:\/\/www.howtocookthat.net\/wp-content\/uploads\/2024\/11\/thumbnail-3d-printing-400x400.jpg 400w\" sizes=\"(max-width: 150px) 100vw, 150px\" data-wp-pid=\"175793\" \/><\/a><p>This project has involved a huge learning curve. Optimistically I hoped that I would simply download an existing paste extruder 3d model, print it and then make some small tweaks. Instead I discovered that the existing extruders did not work for fine extrusion through a nozzle. That meant that I needed to learn about gear ratios and how to make a new 3d model in blender. If you&#8217;ve ever used blender you&#8217;ll know that it<\/p>\n","protected":false},"author":1,"featured_media":175793,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[142,912],"tags":[3843,2774,3840,3844,3841,3842],"_links":{"self":[{"href":"https:\/\/www.howtocookthat.net\/public_html\/wp-json\/wp\/v2\/posts\/175748"}],"collection":[{"href":"https:\/\/www.howtocookthat.net\/public_html\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.howtocookthat.net\/public_html\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.howtocookthat.net\/public_html\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.howtocookthat.net\/public_html\/wp-json\/wp\/v2\/comments?post=175748"}],"version-history":[{"count":20,"href":"https:\/\/www.howtocookthat.net\/public_html\/wp-json\/wp\/v2\/posts\/175748\/revisions"}],"predecessor-version":[{"id":175783,"href":"https:\/\/www.howtocookthat.net\/public_html\/wp-json\/wp\/v2\/posts\/175748\/revisions\/175783"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.howtocookthat.net\/public_html\/wp-json\/wp\/v2\/media\/175793"}],"wp:attachment":[{"href":"https:\/\/www.howtocookthat.net\/public_html\/wp-json\/wp\/v2\/media?parent=175748"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.howtocookthat.net\/public_html\/wp-json\/wp\/v2\/categories?post=175748"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.howtocookthat.net\/public_html\/wp-json\/wp\/v2\/tags?post=175748"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}