最新 光固化SLA激光3D打印机的DIY教程

下面是如何使光固化3d打印机。它仍然是一个位的一个进展中的工作，但到目前为止，这是相当不错的了。这主要是一个实验，开始作为一个三角洲的机器人光固化机，但最终一个更传统的直角光固化机。

Here is how to make a Stereolithography 3D Printer. It is still a bit of a work in progress but so far it is working pretty well. This is mainly an experiment which started as a Delta Robot Stereolithography Printer but ended as a more traditional Cartesian Stereolithography Printer.

光固化（SLA光固化设备SL或）是一种添加剂制造过程中使用了一大桶液体UV固化光敏聚合物“树脂”和UV激光在时间建立零件层。每一层上，在激光束跟踪的部分的横截面图案的表面上的液态树脂。接触到的紫外线激光固化，固化的树脂跟踪模式，并坚持它下面的层。我一直想一个3D打印机了，而现在，有一些非常合理的价格包可以像Makerbot，Ultimaker 和的RepRap项目。我刚刚买了一个工具包，并开始打印的东西，但在的时候，我还没有看到从那些伟大的分辨率或打印质量。我开始四处寻找其他3D印刷技术，发现SLA提出了一些惊人的打印质量，所以我决定尝试做我自己。自从我开始这一段时间回这些项目已经走过了漫长的道路，现在他们可以做一些漂亮的打印输出。还有人在UV树脂和DLP投影机的3D 打印机崭露头角。我决定进入这个在收尾挑战赛，因为我真的可以使用的激光切割机:-)我也有一些想法，如何重新设计这个项目，创建的激光切割机。制作工具的人，我不会介意，如果我有一个要记住的东西是目前的市售紫外/可见光树脂成本。1公升大约是$ 200 - $ 250，ABS或PLA塑料挤出打印机约4 - 5倍以上，据我可以告诉。还有其他类型的树脂便宜，但我不知道他们如何工作，因为我是真的不知道，如果这将是一个可行的方法创建3D对象，这是一个相当便宜，快速地设计项目。我有一个小Taig数控铣床，用于切割金属，所以自定义部件均采用废铝我已经铺设周围。你或许可以使用木材，甚至手工切割的部分，如果你是细心的。这个项目是开放源码硬件。

Stereolithography (SL or SLA from Stereolithography Apparatus) is an additive manufacturing process using a vat of liquid UV-curable photopolymer "resin" and a UV laser to build parts one layer at a time. On each layer, the laser beam traces a cross-section pattern of the part onto the surface of the liquid resin. Exposure to the UV laser light cures, solidifies the pattern traced on the resin and adheres it to the layer below.

I have wanted a 3D Printer for a while now and there are some very reasonably priced kits available like the Makerbot,Ultimaker and the RepRap project. I could have just bought a kit and started printing things but at the time I had not seen great resolution or print quality from those. I started looking around at the other 3D printing technologies and found SLA made some amazing quality prints, so I decided to try making my own. Since I started this a while back those projects have come a long way and they can make some beautiful prints now. There are also people working on a UV resin and DLP projector 3D printer which is showing promise.

I decided to enter this in the Epilog Challenge Contest because I could really use a laser cutter :-) I also have some ideas how to redesign this project, for creation on a laser cutter.

I wouldn't mind making kits for people if I had one.

Something to keep in mind is the current cost of commercially available UV/Visible resins.

1 Liter is about $200 - $250 so compared to ABS or PLA for the plastic extrusion printers it is about 4 - 5 times more as far as I can tell. There are other types of resin that are cheaper but I do not know how well they will work.

Since I wasn't really sure if this was going to be a viable method of creating 3D objects, this was a fairly cheap and quickly designed project. I have a small T aig CNC Mill for cutting metal so the custom parts are made of scrap aluminum I had laying around. You can probably use wood and maybe even hand cut the parts if you are careful.

This project is Open Source Hardware.

步骤1 材料，工具和安全

Step 1Materials, Tools and Safety

这是我所使用的零件的列表。通用零件 3 - 16“×171/2”×3/4“胶合板的背面和侧面的情况下 2 - 16“×16”×3/4“胶合板＃6×3“木螺钉和垫圈 4 -橡胶塞子1 7/8“所述1 3/4”的 4 - 1/4-20×2 1/2“螺栓 8 - 1 / - 24 - 的情况下的顶部和底部4-20螺母和垫圈 1 - 4“×4”×1/4“黑色乙缩醛板（聚甲醛） 1 - 1升的烧杯直线导轨和自动化库存积压 4 块 - AG直线导轨，15毫米×200mm的 2 - 15mm的轴承座， 2螺栓法兰 2 - 15毫米轴承座，4螺栓法兰电子元器件从Sparkfun和其他 6 -微辊 3 - ROB-09238步进电机 3 - EasyDriver步进电机驱动器（Pololu驱动程序应该也可以工作） 3 -极性连接器4针住房 3 -极性连接器4针连接头 2 - 6针母头 2 -直流桶杰克的适配器-女 1 - Sanguino （Arduino的巨型太多的代码修改） 1 - 5V FTDI USB电缆 1 -欧姆龙G5V-1继电器 1 - LD33V 3.3V电压调节器 2 - 9V 500mA或更高的电源供应器（可以使用，但它们很便宜） 1 - 12V - 24V2000毫安或更高的电源（步进电机） 1 - TIP120晶体管 1 - 1K的电阻 1 -保护二极管等1N4148 2 - 2针螺钉接线端子，各种男，女0.1“报头，大到足以容纳一切丝杠麦克马斯特- 1 卡尔 - 1018碳钢精密梯形螺纹杆，1/4“-16尺寸，3 线和面包板“的长度Leadnuts DumpsterCNC 3 - ACME 1/4“-16（1开始）Leadnuts方形法兰4孔 3 - Acme的1/4“-16（1开始）耦合器5毫米口径激光部分Aixiz 1 - Aixiz蓝色激光玻璃镜片 1 - Aixiz 405nm紫激光20mW的 1 -光阑，零光圈，21MM外径从爱特蒙特光学紫外/可见光固化树脂安士澳粘合剂 1 -升DYMAX 3099超轻型焊胶或 1 -升泰3105光固化胶粘剂工具所需的钻孔和各种位钻床拼图 4-40自来水接入到数控铣床大猩猩胶水或类似的长夹钢锯文件安全激光安全护目镜，如这些是有效的，他们必须防止405nm的光，通风良好的地方，不吸入从树脂或固化时产生的蒸汽。

This is a list of the parts I used.

General Parts

3 - 16" x 171/2" x 3/4" Plywood for the back and sides of the case

2 - 16" x 16" x 3/4" Plywood for the top and bottom of the case

24 - #6 x 3" wood screws and washers

4 - Rubber Stoppers 1 7/8" x 1 3/4"

4 - 1/4-20 x 2 1/2" Bolts

8 - 1/4-20 Nuts and washers

1 - 4" x 4" x 1/4" Black Acetal sheet (Delrin)

1 - 1 Liter Beaker

Linear Rail and Blocks from Automation Overstock

4 - AG Linear Rail 15mm x 200mm

2 - 15mm Bearing Block, 2 Bolt Flange

2 - 15mm Bearing Block, 4 Bolt Flange

6 - microswitches with roller

3 - ROB-09238 Stepper Motors

3 - EasyDriver Stepper Drivers (Pololu drivers should work too)

3 - Polarized Connectors 4-Pin housing

3 - Polarized Connectors 4-Pin Header

2 - 6 pin female headers

2 - DC Barrel Jack Adapters - Female

1 - Sanguino (Arduino Mega would work too with code modifications)

1 - 5V FTDI USB Cable

1 - Omron G5V-1 Relay

1 - LD33V 3.3V Voltage Regulator

2 - 9V 500ma or higher Power Supplies (could use one but they are cheap)

1 - 12V - 24V 2000ma or higher Power Supply (for Stepper Motors)

1 - TIP120 Transistor

1 - 1K Resistor

1 - Protection Diode such as 1N4148

2 - 2 pin screw terminals

Various Male and female .1" headers, wire and protoboard big enough to fit everything

Leadscrew from McMaster-Carr

1 - 1018 Carbon Steel Precision Acme Threaded Rod, 1/4"-16 Size, 3' Length

Leadnuts from DumpsterCNC

3 - Acme 1/4"-16 (1 Start) Leadnuts Square flange

4 hole

3 - Acme 1/4"-16 (1 Start) Couplers 5mm Bore

Laser parts from Aixiz

1 - Aixiz blue laser glass lens

1 - Aixiz 405nm violet laser 20mW

1 - Iris Diaphragm, Zero Aperture, 21mm Outer Diameter from Edmund Optics

The UV/Visible light cure resin from Ellsworth Adhesives

1 - liter Dymax 3099 Ultra Light-Weld Adhesive

or

1 - liter Loctite 3105 Light Cure Adhesive

Tools Needed

Drill and various bits

Drill Press

JigSaw

4-40 tap

Access to a CNC Mill

Gorilla glue or similar

Long clamps

Hacksaw

Files

Safety

Laser Safety Goggles such as these. They must protect against 405nm light to be effective.

Well ventilated area, don't inhale the vapors from the resin or those produced when curing.

第2步Y轴

Step 2Y Axis