CNC router build: Difference between revisions

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'''Power supplies'''
'''Power supplies'''
* 3x 70V 400W [http://www.aliexpress.com/item/400W-70V-Switch-Power-supply-DC-power-S-400-70-5-7A-CNC-Router-Single-Output/2028432537.html?spm=2114.01020208.3.1.MM8xU9&ws_ab_test=searchweb201556_1_79_78_77_80_61,searchweb201644_5,searchweb201560_7 from China]
* 3x 70V 400W [http://www.aliexpress.com/item/400W-70V-Switch-Power-supply-DC-power-S-400-70-5-7A-CNC-Router-Single-Output/2028432537.html?spm=2114.01020208.3.1.MM8xU9&ws_ab_test=searchweb201556_1_79_78_77_80_61,searchweb201644_5,searchweb201560_7 from China]
=== Motor cabeling ===
'''Z axis'''
* 1 = U
* 2 = V
* 3 = W
* 4 = NC
* 5 = break brown cable
* 6 = break white cable


=== Endstops ===
=== Endstops ===
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* Omron EE-SX870p Photomicrosensor [https://www.ia.omron.com/product/item/2260/ (datasheet)]
* Omron EE-SX870p Photomicrosensor [https://www.ia.omron.com/product/item/2260/ (datasheet)]


cabeling
1=U / 2=V /3=W
Break 5= Brown cable / 6= White cable
''' Electrical '''
''' Electrical '''
* all endstops can be driven with 5 to 24V.  
* all endstops can be driven with 5 to 24V.  

Revision as of 01:29, 22 December 2015

   
CNC Mill

Release status: experimental [box doku]

Description
Author(s)  Tarwin
Last Version  v0.1

We want to use the big-ass CNC portal Thomas rescued from the trash to build a CNC router.

Goals

  • Mill Aluminium!
  • route PCBs
  • be open for extensions, easy tool change

Hardware

Motor System

X & Y Motors

Z Motor

Motor controllers

Power supplies

Motor cabeling

Z axis

  • 1 = U
  • 2 = V
  • 3 = W
  • 4 = NC
  • 5 = break brown cable
  • 6 = break white cable


Endstops

X & Y

  • Type unknown
  • Seems to be an Solid-state Auto Switch, not just a Reed sensor, same pinout as the SMC

Z

  • SMC D-F9H (datasheet) (Solid-state Auto Switch, works like a PNP transistor)
  • Omron EE-SX870p Photomicrosensor (datasheet)

Electrical

  • all endstops can be driven with 5 to 24V.
  • Pinout is: brown: VCC / blue: GND / black: Signal
  • all have a red led which goes out if they sense something
  • Some input here

Software

CNC_router_software_eval


Sub-projects

Fix up portal

  • The portal needs to put together and fixed up
    • Put portal together, replace belt - done
    • identifiy / Test endstops - done
    • Build portal frame - in progress (Thomas E)
    • Try Z axis brake - done


Frame and table

  • The X Axis is raised, the linear bearing runs far above the tool head. This implies a high center of gravity.
  • Frame needs to be very stable
    • Old workbench?

First draft:

Fraestischv1.jpeg

Tool head

  • needs to be powerful (Aluminium) and precise (pcbs)
    • Find matching Spindle with driver and cooling - done
    • Bought this: 2.2kw wassergekühlte Frässpindel
    • This can be controlled manually on the inverter or over serial.
    • needs its own fuse and a fault current fuse (FI Schutzschalter)
    • Technical data:
      • 2.2kW / 8,000 - 24,000 RPM
      • ER20 spring collets (Spannbuchsen)
      • Driver: HY02D223B
      • water cooled

Software & Controller

  • What will tell the drivers what to do? PC/parallel port, Mikrokontroller, old CNC hardware, ...
  • Hardware? What do we need?


Pictures

Last picture of the portal before it ware put apart and brought to the space

Cnc-mill-put-together.jpg