ペンプロッタ
（伸ばし棒が必要だった・・）
データ
- 素晴らしい改善バージョン
- サポートがほとんどいらない版
- ちょっと変わったアーム式
- ESP32駆動
- 紙送り方式
> pre
a)Metal profiles:
Stls included for dimensions. Material specified in their name.
In addition, two 6mm ID 30 mm long 0,5 mm thickness brass tubes are needed to act as
bearings between x carriage and the steel shafts.
b)Screws (and their nuts):
1 M4x20 mm
1 M4x40 mm
15 M3x12 mm
4 M3x30 mm
10 M2,5x8mm
8 2x10 wood screws
2 M4 wing nuts (optional)
c)Electronics:
1 Arduino UNO
1 arduino CNC shield (with drivers)
Mosfet circuit to drive the solenoid using the spindle pin(example included)
1 Enstop
1Power switch
1 Jack conector
1Red LED
1 470 Ohm resistor
Asorted wires
USB cable
A computer to generate and send the g-code to the plotter.
d) Actuators:
2 NEMA 17 x 35 mm stepper motors.
1 Spring loaded 12v solenoid (mine was from an old printer, use the one you have and glue
it in place.
e) Misc:
Paper rollers from an old printer (you can print them yourself)
Sand paper to glue on the 12mm alumninum tube to grip the paper
4 Ball bearings 4mmID 13mmOD 5mm thickness
Heatsrink tubing
Cable ties
6mm wide Belt and pulley
6 x 12 mm spring
<<
- 紙送り式
> table
2 Nema 17 Stepper Motors, @700, 薄型のものが安いが・・
1 SG90 Servo Motor,@150
GT2 Belts, 200
1 Toothless Idler, 200
1 Toothed Idler, 200
Various M3 and M4 Screws and Bolts
M3 Square Nuts (Prusa like), 300
Adhesive Sandpaper - you can make it yourself with double sided tape if needed
1 Rubber Band
1 Arduino Uno, 1300, CNCシールド付き
1 Arduino Uno CNC Shield
1 Power Switch
1 Power Adapter - 12V 3A Suggested, 500, ACアダプタで大丈夫？
2 A4988 Stepper Motor Drivers
2 Aluminium Square Extrusions 10mm x 10mm - 295mm, 1600, 4本
1 Aluminium Square Extrusions 10mm x 10mm - 300mm
1 Aluminium Square Extrusions 10mm x 10mm - 280mm - Needs to be Precise
2 Steel Rods 8mm Diameter - 280mm, 994, 2pcs
1 Aluminium Tube 12mm Diameter 1mm Thickness - 255mm - Needs to be Precise, 500
<<
材料費 5000円くらい。
- アーム式
> table
2x Nema 17,@700
2x Linear rod M8 x 450mm X Axi, 1600, 4pcs
2x Linear rod M8 x 350mm Y axi
2x Linear rod 3.5mm of CDROM Z Axi (Puede encontrarlos en una antigua CDROM/ You can find them in any old CDROM)
1x M8x470mm threaded rod, 1600, 2本あったほうが良い？
8x Lm8uu or printed, 452,8pcs
1x Servo sg90, 150
2x EndStop, 400, 推測
2x GT2 Pulley 16 teeth, 200, 推測
5x Bearing 624zz, 500, 推測
1x 2000mm GT2 belt, 400, 推測
M3 and M4 ascrews and nuts
M8 nuts
<<
合計6702円
- アーム式
> pre
1x Arduino UNO R3
1x CNC shield
2x A4988 driver
2x Nema 17 stepper motors
2x Linear smooth rod M8 x 450mm, X AxiS
2x Linear smooth rod M8 x 350mm, Y axiS
2x Linear rod 3.5mm obtained using nails
2x M10 x 500 mm threaded rod
8x M10 flanged nuts
8x LM8UU linear bearing (also a 3d printed clone could be ok)
1x SG90 servo
8x F623ZZ flanged bearings
1x 2000mm GT2 belt (approx)
2x GT2 Pulley 16 teeth (also 20 teeth ok)
1x 12V 5A power supply
1x USB cable
some wires
some selftapping screws bolts & nuts
<<
比較
- 部品はよく似ている
- アーム型のほうが場所をとる
- アーム型はY軸のシャフトも必要
- アーム型は任意の平面に描画できる
- 紙送り型は理論上無限の長さのY軸に対応できる
- 材料費は良い勝負
https://inline.inajob.tk/img/twitter-5643382/%E3%83%9A%E3%83%B3%E3%83%97%E3%83%AD%E3%83%83%E3%82%BF/40dffa3d-8dc5-11eb-832d-1a53af6c85a1#.png
この人の記事が良い。もともと紙送り型を作っていたが、紙送り部分がうまくいかないことが多くアーム型に戻ってきている。
そして3つ目の設計が良い。
VSlotと呼ばれるアルミフレームの溝を使った直動機構が、リーズナブルだし静かに動きそうでよい。
部品