IT’S BEEN EASY to overlook some of the innovations coming out of the RepRap community as of late.Between regular MakerBot releases and announcements for new types of printers like the B9 Creator and Form 1， as well as a steady stream of big company announcements， the system that helped launch the home 3-D printer market has been a bit overshadowed. A couple new machines deserve attention though， offering unique features that the more mainstream devices don’t have.

One of those printers is the $699 Portabee （$480 unassembled）， based on the RepRap Wallace， which brings low cost and portability to the 3-D printing market.Overall， the specs are what you would expect in a low-cost machine. A 120x120x120 mm （4.75 inches） build volume makes it competitive with other printers in its price class， but is still less than half the volume of the new MakerBot Replicator 2. The heated build platform helps prevent model warping during print jobs， but the bare-bones case design also increases the chance of accidental burns and damage during transport. The Portabee uses 3 mm filament and a 0.5 mm extruder nozzle — both good specs， but moving toward obsolescence with higher-resolution 1.75 mm filament and 0.4 mm nozzles becoming more widespread.

While the Portabee might not lead the market in most categories， it is definitely among the most portable. Daniel Warner， one of the project creators， says， “Just a simple thing like taking it to your friends place to demonstrate an actual 3-D print is really convenient. During the engineering phase we did have the option of producing another big， lumbering 3-D printer， but we grew more attached to the concept of portability and minimalism as we progressed.” Their goal was achieved — not only does the machine weigh in at a paltry 6.2 pounds， it also folds down flat.

Another option for the budget- and space-constrained comes from PrintrBot. The $399 PrintrBot Jr is a kit-based system that has been stripped down to the bare minimum — it only prints PLA plastics and has a plywood build platform， but is an accessible option for children.The $1，499 PrintrBot Go has more impressive base specs — 200x185x150 mm build area （339 cubic inches compared to 410 cubic inches for the MakerBot Replicator 2）。 The base unit is limited to 3 mm PLA filament， but can print ABS with an upgrade to a Printrbot heated bed. What really sets this printer apart is its integrated “spy-worthy” attaché case.

Both solutions lack the polish of the FoldaRap， but stand apart from that machine by being available in kit or fully assembled form， not just a list of parts to be purchased.

If you’re looking for a lightweight way to get started with 3-D printing but don’t want to drop $2，000 on a Makerbot， these might be just what you need.

自動翻譯僅供參考

成本不到500美元的便攜式和經濟實惠型全新3D打印機

這是很容易忽視的一些創新從RePrAPP社區，因為最近。在常規MaKBOT發布和宣布新類型的打印機，如B9創建者和形式1，以及源源不斷的大公司公告，系統，幫助推出家用3D打印機市場有點黯然失色。然而，一些新的機器值得關注，提供更多主流設備所沒有的獨特特性。

其中一個打印機是699美元Portabee（480美元未組裝）的基礎上，華萊士的RepRap，帶來低成本和便攜性的3-D打印市場。總體而言，該規范是你希望在低成本的機器是什么。一個120x120x120毫米（4.75英寸）構建的體積使得它在其價格類中的其他打印機具有競爭力，但仍只有不到一半的新MakerBot Replicator的2的體積加熱構建平臺有助于防止在打印作業模式翹曲，但裸-bones外殼設計也增加了運輸過程中意外燒傷和損壞的幾率。所述Portabee使用3毫米長絲和0.5mm的擠出機噴嘴 - 既有良好的規格，但移向過時與更高分辨率1.75毫米長絲和0.4毫米噴嘴變得越來越普遍。

雖然Portabee可能不會導致市場在大多數類別，它絕對是其中最便于攜帶。丹尼爾·華納，該項目創建者之一，他表示，“就像把它給你的朋友的地方，展示實際的3-D打印一個簡單的事情真的很方便。在工程設計階段，我們確實有制作另一個大，笨重的3-D打印機的選擇，但我們越想越連接到便攜性和極簡主義的概念，因為我們的進展“他們的目標已經實現 - 不僅在機器重量在一個微不足道的6.2磅，它也向下折疊平。

對于預算 - 和空間受限的另一個選擇來自PrintrBot。 399元PrintrBot Jr一家已經剝離下來，以最低限度的試劑盒為基礎的系統 - 它僅打印PLA塑料并具有膠合板構造平臺，但是可訪問的選項為兒童。該1499美元PrintrBot Go有更令人印象深刻的基礎功能 - 200x185x150毫米建設面積（相比于410立方英寸的MakerBot Replicator的2339立方英寸）。基座單元被限制到3毫米PLA長絲，但可與升級到Printrbot加熱床打印的ABS。但真正該打印機與眾不同的是其集成的“間諜值得”公文包。

這兩種解決方案缺乏FoldaRap的打磨，但站在除了那臺機器由是藥盒或完全組裝的形式，部分不只是一個列表，購買使用。如果你正在尋找一個輕量級的方式開始使用3-D打印，但不想放棄$ 2，000一個Makerbot，這些可能正是你需要的。