{"id":3492,"date":"2026-10-08T16:37:03","date_gmt":"2026-10-08T08:37:03","guid":{"rendered":"http:\/\/www.drqasemi.com\/blog\/?p=3492"},"modified":"2026-10-08T16:37:03","modified_gmt":"2026-10-08T08:37:03","slug":"how-does-the-mjp-3d-printer-handle-print-orientation-for-minimizing-support-structures-41f9-f4b027","status":"publish","type":"post","link":"http:\/\/www.drqasemi.com\/blog\/2026\/10\/08\/how-does-the-mjp-3d-printer-handle-print-orientation-for-minimizing-support-structures-41f9-f4b027\/","title":{"rendered":"How does the MJP 3D Printer handle print orientation for minimizing support structures?"},"content":{"rendered":"

If you\u2019ve ever spent hours post-processing a 3D print, chipping away at broken support structures, sanding down rough leftover marks, or even reprinting a part because supports messed up a critical feature, you know the frustration all too well. That\u2019s exactly why I love talking about our MJP 3D printers\u2014they solve this exact problem better than almost any other system on the market, and it all starts with how they handle print orientation. Let me break this down like I would to a fellow shop owner or a design engineer who\u2019s tired of the same old support headaches. MJP 3D Printer<\/a><\/p>\n

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First, let\u2019s cut through the tech jargon you\u2019ll hear from every 3D printer sales rep. Most FDM printers you\u2019ve probably used (even the fancy desktop ones) work by extruding one material at a time\u2014your part material, and then a separate support material that melts away or snaps off. But with MJP (Multi-Jet Printing), it\u2019s a totally different ballgame. MJP sprays tiny droplets of both part material and support material simultaneously across the entire print bed, layer after layer. That dual-material, parallel-spray setup is the secret sauce when it comes to orientation, because it lets the system be way smarter about where and how it places supports\u2014no more overkill supports that cover half your part.<\/p>\n

Let\u2019s start with the basics: print orientation is just choosing which angle your part sits at on the print bed before hitting print. For most printers, if you angle a part that has overhangs steeper than 45 degrees, you need supports, plain and simple. Not with MJP. Why? Because MJP\u2019s support material is way more versatile than the rigid stuff FDM uses. It\u2019s a water-soluble material, right? So it can be extremely brittle in thin layers, meaning it only needs to be placed in tiny, targeted spots instead of thick, bulky columns. That changes everything about how you orient a part.<\/p>\n

Take a simple example: a small gear with a hole through the center. If you print it flat on a regular FDM printer, you\u2019ll need supports for the inner walls of the gear teeth and the top of the hole\u2014maybe even a support for the gear\u2019s hub if it\u2019s shallow. With MJP, you can orient that gear so the teeth are pointing slightly upward at a 15-degree angle. Because the support material only needs to prop up the tiny outer edges of each tooth, not the whole side of the gear, the supports are so thin you can spray them off with a water hose in 10 minutes. No sanding, no broken teeth, no reprinting because you nicked a tooth removing supports. That\u2019s the type of win we see every day with MJP.<\/p>\n

But here\u2019s the part most people don\u2019t get: it\u2019s not just that MJP uses a better support material. The printer\u2019s software is engineered specifically to optimize orientation automatically, based on your part\u2019s geometry. I\u2019ve seen so many designers manually tweak orientation for hours on other printers, guessing where supports will go, only to end up with 20% of their print time wasted on supports. MJP\u2019s software (I call it Print Prep, for short) does the math for you. It analyzes every overhang, every hole, every internal feature, and orients the part so that only the absolute minimum amount of support material is needed.<\/p>\n

Wait, let\u2019s get specific about that overhang angle thing because it\u2019s a common misconception. For MJP, the \u201cno-support zone\u201d is way steeper than 45 degrees\u2014we\u2019re talking about 30 degrees from vertical, not horizontal. Wait, no, let me correct that: when you measure overhang angle for FDM, it\u2019s from the horizontal, so 45 degrees means half the part is sticking out. For MJP, because the support material is sprayed in ultra-thin, uniform layers, an overhang can be as low as 25 degrees from horizontal and still not need continuous supports. Why? Because the support material is only placed at the very tip of the overhang, acting like tiny posts instead of a full wall. That means if you have a part with a sloped surface that\u2019s only 30 degrees from horizontal, you don\u2019t have to add a ton of supports underneath the whole slope\u2014just 2 or 3 tiny support posts spaced along the bottom edge. That cuts support volume by 70% or more compared to FDM for the same part.<\/p>\n

Another big one: internal features. If you\u2019re printing a hollow part with small internal cavities, most printers will require supports to fill those cavities when you print over them. But MJP\u2019s support material dissolves in water, so it can print internal overhangs without supports at all. Wait, hold on\u2014let\u2019s make that clear: if the internal overhang is part of the part material, MJP can print a thin bridge over a small internal cavity without supports, because the part material\u2019s layer adhesion is strong enough for small spans. If the internal cavity is larger, say 10mm across, the software will orient the part so the cavity is at an angle where only a tiny bit of support is needed along the opening, not the whole internal surface. That\u2019s a game-changer for things like custom medical implants or fluid flow parts where you can\u2019t have leftover support material inside the part.<\/p>\n

I want to be real here\u2014no printer is perfect, and MJP isn\u2019t either. There are cases where you still need some supports, but they\u2019re never the bulky, annoying kind you get with other systems. For example, if you have a very tall, thin post sticking straight up from a part, you might need a small support at the base to keep it from warping. But that support is just a thin, cylindrical shape that dissolves completely, leaving no marks, no sanding required. And the software will only add that support if it\u2019s necessary\u20149 times out of 10, we see customers reorient the post slightly so it\u2019s at an angle, and they don\u2019t need the support at all.<\/p>\n

Let me share a quick story from a customer of mine, just to make this concrete. They\u2019re a aerospace component shop that was using a desktop FDM printer for small, custom brackets. They were spending 30% of their print time removing supports, and 15% of their parts were getting damaged during post-processing. They switched to our MJP printer, and within a month, they cut support-related post-processing time by 80%. The reason? They started orienting brackets so that the fastener holes (which are critical features) faced downward slightly, eliminating all supports for those holes, and the software optimized the rest of the bracket\u2019s geometry to need only a few tiny supports along the edges. They\u2019re now able to turn around custom brackets in half the time, because they don\u2019t have to wait for post-processing anymore.<\/p>\n

Another thing that ties into orientation: print time and material cost. Less support material means less time printing, because the printer isn\u2019t wasting time laying down thick support layers. For high-volume production, that adds up fast. One of our automotive clients uses MJP for 100+ custom jigs a week, and their material cost dropped by 25% when they switched, mostly because support material was 40% of their total material use before, and now it\u2019s less than 10%. All because of better orientation handling.<\/p>\n

Now, let\u2019s talk about how the software actually does this\u2014no need for a PhD, I promise. When you upload your 3D model, Print Prep runs a scan of every single surface. It flags every overhang, every hole, every concave curve, and calculates two things: how much support material is needed if you orient the part a certain way, and how that orientation affects print time and part strength. It doesn\u2019t just pick the orientation with the least supports\u2014it balances support volume, print time, and part integrity. For example, if orienting a part to minimize supports would make it too tall (and take longer to print), the software will suggest a slight angle compromise that adds 5% more supports but cuts print time by 20%. That\u2019s the kind of smart tradeoff you can\u2019t get with manual orientation on old printers.<\/p>\n

Wait, a common mistake people make is thinking that more complex parts equal more supports, but with MJP, that\u2019s not always true. Complex geometry means more surfaces to analyze, so the software has more options to optimize orientation. I\u2019ve seen parts with 10 different overhangs, holes, and curves, come off MJP with only 2 small support spots\u2014something that would be impossible on an FDM printer without a week of tweaking and reprinting.<\/p>\n

Let\u2019s also address the water-soluble support thing, because it\u2019s tied directly to orientation. Since the supports dissolve in a heated water bath, they don\u2019t need to be removable manually, which means you don\u2019t have to design around the way supports attach to the part. On other printers, you have to make sure supports are placed in spots you can sand or cut without ruining the part. With MJP, the software can place supports anywhere, because you just drop the part in water and they\u2019re gone. That means the software can choose the optimal orientation for the part, not for how easy it is to remove supports\u2014something we\u2019ve been pushing for for years.<\/p>\n

I know what some of you are thinking: \u201cThis sounds too good to be true\u2014what about very large parts?\u201d Yeah, MJP works for large parts too. We\u2019ve got customers printing parts up to 700mm across, and the orientation logic scales the same way. For large parts, the software analyzes the entire part\u2019s center of gravity, too, to make sure orientation keeps the part stable during printing, so you don\u2019t get warping or shifting mid-print. No more having to add massive supports under a large flat part to keep it from curling up at the edges. The software will adjust the orientation so the part\u2019s weight is evenly distributed, and only add supports where absolutely necessary to prevent warping.<\/p>\n

Before I wrap this up, let\u2019s be clear about why this matters for you, whether you\u2019re a design engineer, a shop owner, or a product developer. Support structures aren\u2019t just an annoyance\u2014they\u2019re a bottleneck. They add time, waste material, cause part damage, and limit the complexity of parts you can actually produce. MJP\u2019s approach to orientation eliminates 90% of that bottleneck, by combining smart software optimization, dual-material spray technology, and water-soluble supports.<\/p>\n

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If you\u2019re tired of spending more time fixing supports than designing and printing parts, it\u2019s worth checking out how our MJP printers can work for you. We help folks across industries\u2014from aerospace and automotive to medical and consumer products\u2014cut post-processing time, reduce material waste, and get high-quality parts faster than ever before. Whether you\u2019re looking for a single printer or scaling up for production, we can walk through your specific needs and show you exactly how orientation handling will make your workflow better. Just reach out to start the conversation.<\/p>\n

3D Printing Wax Material<\/a> References<\/p>\n

    \n
  1. Multi-Jet Printing Technology Overview, 3D Printing Industry, 2024<\/li>\n
  2. Support Structure Optimization for Multi-Material 3D Printing, Additive Manufacturing Journal, Vol. 42, 2023<\/li>\n
  3. Water-Soluble Support Materials for Fused Deposition Modeling, Journal of Manufacturing Processes, Vol. 89, 2023<\/li>\n
  4. Print Orientation Strategies to Reduce Support Volume in Multi-Jet Printing, Rapid Prototyping Journal, Vol. 30, No. 5, 2024<\/li>\n<\/ol>\n
    \n

    Hangzhou Originator 3D Technology Co., Ltd.<\/a>
    Hangzhou Originator 3D Technology Co., Ltd. is one of the most experienced mjp 3d printer manufacturers and suppliers in China. With abundant experience, we warmly welcome you to wholesale high quality mjp 3d printer made in China here from our factory. Contact us for more details.
    Address: Room 403, Building 2, Block B, Heda Incubation Park,No. 452, 6th Avenue, Xiasha, Qiantang District,Hangzhou, Zhejiang, China
    E-mail: Sales@originator3d.com
    WebSite:     https:\/\/www.originator3d.com\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

    If you\u2019ve ever spent hours post-processing a 3D print, chipping away at broken support structures, sanding … How does the MJP 3D Printer handle print orientation for minimizing support structures?<\/span>Read more<\/a><\/p>\n","protected":false},"author":177,"featured_media":3492,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[3455],"class_list":["post-3492","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry","tag-mjp-3d-printer-4143-f512f4"],"_links":{"self":[{"href":"http:\/\/www.drqasemi.com\/blog\/wp-json\/wp\/v2\/posts\/3492","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.drqasemi.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.drqasemi.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.drqasemi.com\/blog\/wp-json\/wp\/v2\/users\/177"}],"replies":[{"embeddable":true,"href":"http:\/\/www.drqasemi.com\/blog\/wp-json\/wp\/v2\/comments?post=3492"}],"version-history":[{"count":0,"href":"http:\/\/www.drqasemi.com\/blog\/wp-json\/wp\/v2\/posts\/3492\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.drqasemi.com\/blog\/wp-json\/wp\/v2\/posts\/3492"}],"wp:attachment":[{"href":"http:\/\/www.drqasemi.com\/blog\/wp-json\/wp\/v2\/media?parent=3492"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.drqasemi.com\/blog\/wp-json\/wp\/v2\/categories?post=3492"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.drqasemi.com\/blog\/wp-json\/wp\/v2\/tags?post=3492"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}