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  1. rodw

    Interrupt Driven Rotary Table controller

    Please read the hardware dependencies in the first post. Your keyboard hardware is different to what I used and the Arduino environment is not plug and play. Others have worked around the problem.
  2. rodw

    Interrupt Driven Rotary Table controller

    Yes, I'm going to use language based on the latest development branch of Linuxcnc as its changed a bit from the current release. Linuxcnc can support up to 9 joints (or motors) and these are mapped to axes. It is possible to map 2 or more joints to the one axis so they work in unison (as per a...
  3. rodw

    Interrupt Driven Rotary Table controller

    Welcome back John. I must say I'm a bit the same. I've migrated to Linuxcnc
  4. rodw

    Tips for Arduno software for Rotary Table Controllers

    The Source code for the LCD library has moved in github https://github.com/rweather/arduino-projects genlookup is in a subfolder https://github.com/rweather/arduino-projects/tree/master/gen And the LCD library is in this subfolder...
  5. rodw

    Tips for Arduno software for Rotary Table Controllers

    Just be aware that the code needs to be duplicated for the CLOCKWISE direction under case LCD_BUTTON_RIGHT
  6. rodw

    Tips for Arduno software for Rotary Table Controllers

    Harry, What you have described is a one way movement so there will be no need to back off the current position when moving down. Backlash will not be an issue as stepper holding torque will keep the current position locked. Provided the stepper and gear train allow the stepper to give 1 micron...
  7. rodw

    Tips for Arduno software for Rotary Table Controllers

    Dazz, yes, there is a direction flag that is 1 for one way and 0r the other (globals.DirPin). Backlash only bites when the direction changes. There is a function called GoDivide() that responds to direction buttons and sets the distance to move. So maybe something like this (one direction only...
  8. rodw

    Tips for Arduno software for Rotary Table Controllers

    Harry, I did think about backlash but decided that if you only travelled in one direction which is the usual case there was nothing to worry about compensating for. So just thinking out loud, Backlash only becomes an issue when you change direction. I think you'd have a variable that said how...
  9. rodw

    Rod's Aussie Shed

    Hmm, Photobucket is offline so my photos have disappeared. So time to upload a couple. Quite a funny day on Friday. Paid for my lathe at Hare and Forbes in the morning and they put it on transport to me in the next suburb. Ducked hoe after that to pick something up and then stopped at Chris's...
  10. rodw

    Electronic Dividing Head using the Arduino

    If you cannot change direction, you have a problem with the DIR signal. Either its not connected or connected to the wrong pin.
  11. rodw

    Rod's Aussie Shed

    Thanks. For me the hobby is the business, not making stuff in my shed. My time is too valuable for that. Staff will come but there are some fundamentals left to to tick off. Maybe in the new year.
  12. rodw

    Rod's Aussie Shed

    I think it depends on whether you are selling to other businesses or to consumers. We use Australian ecommerce software called neto. Nothing has its level of integration with fulfilment. So much so, they now offer Shopify users an addon that lets them do the fulfilment like we do. I don't...
  13. rodw

    Rod's Aussie Shed

    Thanks Scott and DJP for the feedback. Yes, don't ask me what the insurance cost. I had to have liability insurance which meant I needed product liability as well. Ouch! I have not decided whether to take my small SX3 mill from home up there or just buy a drillpress. There was a space above the...
  14. rodw

    Rod's Aussie Shed

    Well, its taken about a month to move in but now my business is in an industrial shed with a bit more room and a few more toys. Small walk behind forklift in the background. The hoist is for some R&D work for vehicle products and is wired to 3 phase power. All of the e-commerce stuff in...
  15. rodw

    Rod's Aussie Shed

    I had 1 micron scales on my 320G but realistically, I can't see a real problem. 5 Micron scales are accurate to 0.005mm, mine are accurate to 0.001mm. Its unlikely you can hold that level of accuracy (eg +- 0.005mm) and if anything, the lower counts on your scales might be an advantage as the...
  16. rodw

    Rod's Aussie Shed

    Yeh, I thought of that. I've seen some photos of one thats been converted where the guy removed all of the gearboxes at the headstock and saddle. Using LinuxCNC you can use your existing DRO scales for encoder feedback for servo motors but don't ask me exactly how!
  17. rodw

    Rod's Aussie Shed

    Mine had the custom stand, DRO, coolant and a collet chuck. I was not really trying to sell it, it just happened.... :)
  18. rodw

    Rod's Aussie Shed

    Yes, a mate also has had one for a few years and says the same thing about the leadscrew covers. He uses it in a semi-commercial setting so its done a lot of work. Had it been available at the time, I would have gone with the Optimum TU3008G over the 320G But it needs to be optioned up a fair...
  19. rodw

    Rod's Aussie Shed

    Yes, it might be hard, but I also expect that I'll be leasing an industrial unit for my ecommerce business in between now and then and some of my toys (and a few others) are going to live there so setting it all up will keep my mind off the deficiencies :)
  20. rodw

    Rod's Aussie Shed

    Geez, 18 months since I've updated this thread. I have to report I'm currently latheless. I never thought I'd see the day I'd part with my AL320G but the Optimum TU-3008G comes with a D1-4 camlock chuck and has a full gearbox so when a mate of mine told a random shopper in Hare and Forbes that...
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