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  1. travis_farmer

    Ideas and build log for my CNC Shed

    i have been trying to think of a way to improve security, where the side walls are tent fabric. about like locking the doors of a convertible, with the top down. eventually, i would like to replace the fabric with something, but i don't know what. best i can think of is to have no windows to...
  2. travis_farmer

    My Techno/ISEL 4 foot square CNC router table build

    on the carousel changer idea. if the disk has a cover, all but where the change location is, then the home location on the carousel could have a cover built in. so to cover the tool-holders, i simply send the carousel axis to home position. it will be set as a rotary axis, with the forks mounted...
  3. travis_farmer

    My Techno/ISEL 4 foot square CNC router table build

    trying to figure out the best way to move the ATC tool rack out of the way... i have a belt and gear reduction assembly that i salvaged from an old lab equipment. i could mount a pipe over the output shaft, and use the pipe as an extension shaft. then the rack could be on slides, and the shaft...
  4. travis_farmer

    Ideas and build log for my CNC Shed

    Far too long since an update... the platform was done quite a while ago. just waiting for spring to move the tent-frame over the platform. considering the idea of building a wall, dividing the shed, and using the first section for my electronics workshop, and the second section for my CNC. the...
  5. travis_farmer

    My Techno/ISEL 4 foot square CNC router table build

    I have been making a control panel for my machine. so to start with, i have cut 4 holes in a PVC sheet for the LCD screen, and three dial encoders. the holes came out a bit too small, but i can finish them off with a dremel.
  6. travis_farmer

    My Techno/ISEL 4 foot square CNC router table build

    had some success today. i wired the PNP sensors to my 7i70, leaving room for the tool pocket sensors. also, i played with the tool change script a bit, and got it to wait for the spindle to lock and unlock before moving. still have to fine tune the dwell to wait for the spindle to stop. it would...
  7. travis_farmer

    My Techno/ISEL 4 foot square CNC router table build

    been thinking about my 7i70 board, and i think i will use it for more than just the changer inputs. i can use it for any PNP sensor, so that could be everything but the homing sensors, as those are NPN. just as long as i still have enough inputs for the rack changer. then can get rid of one of...
  8. travis_farmer

    My Techno/ISEL 4 foot square CNC router table build

    i have pretty much given up on the Matrix tool changer idea, in favor of a rack tool changer. mostly for the simplicity, though somehow i will likely make it complicated. I have raised the spindle on the Z-box for tool changing clearance, but i will have to have the rack in front. i just have to...
  9. travis_farmer

    Brainstorm: Arduino ModBus control (via LinuxCNC), tool changer magazine?

    using this Arduino Library: https://github.com/CMB27/ModbusRTUSlave Library Mirror, in case original breaks: https://github.com/travis-farmer/ModbusRTUSlave GitHub Repo of my WIP demo code (likely non-functioning, yet): https://github.com/travis-farmer/modbus_slave_lcnc_changer Project...
  10. travis_farmer

    My Techno/ISEL 4 foot square CNC router table build

    ok, so the tool transfer device will not work as a slider. it will have to be a swing arm. though with this idea, the magazine XYZ-home location will need to be out of the way of the swing arm.
  11. travis_farmer

    My Techno/ISEL 4 foot square CNC router table build

    so, if i build a matrix tool magazine, the tool holders would be filed into BT30 forks. that means that the tool grabber needs to grab by the taper, and retain by the retention knob, somehow. my best guess on how to do it, would be a grabber "hand" with pincers sized for the larger end of the...
  12. travis_farmer

    My Techno/ISEL 4 foot square CNC router table build

    so, interesting development... using mb2hal on LinuxCNC, and an Arduino project, https://github.com/CMB27/ModbusRTUSlave, i was able to have bi-directional communication between LinuxCNC and the Arduino! i was able to connect a LCNC HAL pin to the pin-13 LED on the Arduino. in ModBus terms, i...
  13. travis_farmer

    My Techno/ISEL 4 foot square CNC router table build

    i have come to the conclusion that search engines and SPAMMERS looking for leaks, are the ONLY people reading my posts here. hence why i don't post very often i guess. so, the ATC spindle purchase is starting to look like a BAD investment. but now i have to complete it, or i waste thousands of...
  14. travis_farmer

    My Techno/ISEL 4 foot square CNC router table build

    the spindle is mounted, and preliminary wiring is complete. i have even completed the break-in process. i opted to control the VFD with analog controls, as i could not get the mb2hal setup to work correctly. and without that, i have no LCNC feedback on the RPM, yet. i thought it had a tach...
  15. travis_farmer

    My Techno/ISEL 4 foot square CNC router table build

    Attached PDF Manual
  16. travis_farmer

    My Techno/ISEL 4 foot square CNC router table build

    well, i bought a ATC spindle, with a VFD... i could barely afford it, but i bought it anyway. problem is, it needs so much stuff to make it work, that i am not sure it was a good purchase, but time will tell. to make it work, i need: compressed air source air dryer regulators air tubing then i...
  17. travis_farmer

    My Techno/ISEL 4 foot square CNC router table build

    Attached a current schematic PDF.
  18. travis_farmer

    My Techno/ISEL 4 foot square CNC router table build

    replaced the sketchy power taps on the bottom board with 3 fuse blocks (5V, 12V, and 24V). next, i need to clean up the wiring some, and wire up the machine-side junction box.
  19. travis_farmer

    My DCC-EX Prototype

    I snapped a pic of my DCC-EX CS prototype. Mega2560 CORE main MCU board (bottom left), 2004 LCD (bottom right), Arduino motor shield for programing track (center right), IBT_2 motor driver for main track (upper right), and the W5500 Ethernet module (upper left).
  20. travis_farmer

    My Techno/ISEL 4 foot square CNC router table build

    i have ordered some things for the machine. an enclosure for the wire hookups on the machine. three fuse blocks (5Vdc, 12Vdc, 24Vdc), though i still need to get a fuse assortment kit. also a large ground terminal block, so i can star-ground my machine. the terminal block will be mounted onto the...
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