Maho MH500w CNC

Documentation and notes for a Maho MH500W CNC

Selecting Heidenhain EXE (converters for

LS-403C has a grating period of 20μm ==> 1 μm resolution in 5 fold interpolation

Linux CNC Installation

Software Installation

Start of bookworm/sid (use xfce):

https://cdimage.debian.org/cdimage/unofficial/non-free/cd-including-firmware/

• Remove cdrom from sources: sudo nano /etc/sources.list
• sudo apt install ethtool

Check driver alignment:

• lspci
• sudo ethtool -i enp2s0

Install Rods' custom kernel

6.1 exists in my NAS

• install headers
• install kernel
• sudo apt install grub-customizer
• sudo apt install r8168-dkms

Mesa 7i97

Network interface:

sudo vim /etc/network/interfaces

auto enp2s0
iface enp2s0 inet static
address 10.10.10.1 or 192.168.1.1

Restart network: sudo systemctl restart networking

mesaflash --device 7i97 --addr 10.10.10.10 --readhmid

??? sudo ethtool -C eth0 rx-usecs 0

LinuxCNC

sudo apt install linuxcnc-uspace linuxcnc-uspace-dev mesaflash

Let it run for a while. While it is running, in another window, check the network latency by reviewing the TMAX settings on your card

halcmd show param hm2*tmax*

Parameters:
Owner   Type  Dir         Value  Name
     7  s32   RW              0  hm2_7i97.0.read-request.tmax
     7  bit   RO          FALSE  hm2_7i97.0.read-request.tmax-increased
     7  s32   RW         704022  hm2_7i97.0.read.tmax
     7  bit   RO          FALSE  hm2_7i97.0.read.tmax-increased
     7  s32   RW          42126  hm2_7i97.0.write.tmax
     7  bit   RO          FALSE  hm2_7i97.0.write.tmax-increased

Notes

Enable outputs

Notes

• MAHO Original color: RAL6011

Pull Stud

• SK40 ISO 7388 II B
  • The short pull stud for SK
  • The long for BT

ISO Standard: https://www.iso.org/standard/68845.html

What fits to a CAT40 cone: Pull studs ISO 7388-3 Form UD | M16 | former norm ISO 7388 Form II B (https://bit.ly/38K9Pz4) Kemmler Order number: 404.20.16 https://www.kemmler-shop.de/en/pull-studs/pull-studs-iso-7388/1509/pull-studs-iso-7388-3-form-ud-m16-with-drill-through-without-o-ring?c=1099

What fits to a BT40 cone: Longer by 3mm. Kemmler: Order number: 404.20.16.20 https://www.kemmler-shop.de/en/pull-studs/pull-studs-iso-7388/1511/pull-studs-iso-7388-3-form-ud-m16-with-drill-through-incl.-o-ring?c=1099

Gallery