转自网友 aldricnegrier，使用Arduino Mega + Ramps 1.4 制做兼具CNC雕刻机功能的3D打印机BuilderBot。
所有设计，软、固件都开源，稍后上传。
第一步，设计，使用的是免费的sketchup，也有cad格式文件
第二步，物料清单，花销表
BuildersBot部件清单、价目表（欧元计价）：
数量 - 品名 - 价格
8 - SBR20UU CNC 线性滚珠轴承支架 - 35
8 - SBR20UU CNC 线性滚珠轴承支架 - 35
4 - SBR16UU CNC 线性滚珠轴承支架 - 20
1 - 消差螺母 RM1605-C7: 350mm - 100
1 - XD 联轴器 25mm X 30mm 孔径: 8mm to 12mm - 10
3 - 马达联轴器，孔径: 8mm to 6mm - 15
2 - SFC16 Precision ground round shaft with support (16 mm) - 30 Z轴圆柱导轨
2 - SFC20 Precision ground round with shaft support (20 mm) - 70 Y轴导轨
2 - SFC20 Precision ground round shaft with support (20 mm) - 60 X轴导轨
3 - 正时皮带 1790-5M-15 - 45
1 - 防尘轴承 686-ZZ (Pack of 10) - 20
6 - 正时皮带轮 - 35
1 - 15mm 铝板 - 50
1 - Kress 电磨主轴 1050W - 150
1 - 43mm Euro Neck 主轴架, Kress主轴夹子 - 35
1 - 4 Nema 23 步进电机 425oz + 4 步进电机驱动 + 电源 - 255
1 - MIG 焊接不锈钢框架 125
1 -海事级不锈钢螺丝, 垫, 螺母等 - 50
1 - 10mm 亚克力箱子 - 50
1 - Arduino Mega + Ramps 1.4控制板 + LCD- 100
1 - 12V 电源 - 15
1 - Greg's 3D打印头 J-头 挤料器 + 电机 + ABS 挤料头 + 喷嘴塞 + 热床 - 100
1 - Lock tight（锁紧
） + 润滑剂 + 油漆 - 35
1 - 电线、电缆、插座、连接器等 - 20
2 - 低噪音风扇 - 15
1 - MDF板作床板 - 15
1 - 5 米 RGB LED 灯带 - 30
总花销大概在1485 欧元
第三步，理解笛卡尔3D坐标系统
X、Y、Z三轴，相互90度垂直。
步骤四：钢制框架的制做
框架，使用不锈钢方钢。
物料单：数量 - 品名
The frame is composed by 11 stainless steel parts (for dimensions consult the 3d open design).
共使用11根方钢，具体尺寸参考图片
4 - rectangular tubes on the bottom of the chassis 4根做底梁
4 - square tubs positioned vertically 4根作支柱
3 - rectangular tubes on the top frame 3根做上梁
制做指导：
1- Using a cutting tool:
- Cut 2 stainless steel rectangular tube with 50x20x750mm that will function as the bottom vertices of the frame
- Cut 2 stainless steel rectangular tube with 50x20x750mm that will function as the bottom vertices of the frame
- Cut 4 stainless steel square tubs with 50X50x250mm that will function as the vertical pillars of the frame
- Cut 1 rectangular stainless steel tube with 60x20x750mm (that will function as the bottom vertices of the frame)
- Cut 2 rectangular stainless steel tube with 60x20x750mm (that will function as the bottom vertices of the frame)
切割架子
2 - Tap and drill 12 holes with 6.5mm diameter in both upper parallel rails
(according to the position of the holes of the calibrated rail supports) (for distances consult the 3d sketch).
上梁，为固定导轨开孔
3 - Weld the 4 rectangular tubs that make the bottom frame. Be careful to align the tubes perfectly.
Next weld the 4 vertical columns, and finally the 3 renaming top tubes that from an open frame.
焊接
4 - After welding all the tubes together, use angle grinder to trim the excess weld from the welding points.
焊缝打磨
5 - Clean the chassis with special acid for stainless steal , and finally polish it with any appropriate material.
抛光
所用材质不锈钢方钢，如下：
开孔定位
框架焊接
为安装Y轴导轨开孔
步骤五：Y轴导轨的安装
二楼有更新
[ 此帖被abigbell在2014-08-11 10:14重新编辑 ]
