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Joel, My concern is the large overhang unsupported. Could you make a mounting block or bracket that you could bolt the scale to at the rear end? My thought that it would be attached to the top surface of the top slide and allow the scale mount to be bolted onto the side of it.

I had a look at the code. there are a number of undefined type conversion which could catch you out. eg as one example ToMove=(bob/360) * Multiplier + 0.5 - cumSteps; Should be more like ToMove=(long) ((bob/360.0) * (float) Multiplier + 0.5 - cumSteps); If the compiler sees 360 it...

Ah, takes me back. My DRO has not skipped a beat since I did it to my AL320G 2.5 years ago. I would revisit the proposed mounting points. I seem to remember that in amongst playing with 3D printers, you also have a mill at your disposal. Here's the backing plate I made to mount the scale...

I'm not really familiar with this software or your hardware but most stepper motors are 200 steps per rev. If you set the software up to be 400 steps, that could be double the speed which might be more than the stepper can handle (most of them peak out at about 400-450 rpm). After this point...

There is no way of knowing except things stop working. Just shorten a few more menu prompts and see if things change. What the problem is that the Arduino stores text variable data in static RAM but on startup, it copies these over into limited dynamic global RAM, effectively creating 2 copies...

Sorry about the cryptic prompts but they kept getting shorter as the memory got tighter. If it is not a faulty button, it is possible for some reason that you have a memory overflow error. This could occur if the later versions of the compiler consume more static RAM than the earlier compiler...

Thanks for the feedback. I'm glad its working for you. If you were going to build it into a dedicated hardware box, I would not waste a 32 bit CPU on it. Please give me your feedback on your linear application as I have not seen anybody use it that way.

If you have to reset the UNO to escape out of Continuous Turn, I think there is still a button problem. The shields I used seemed to use very poor quality switches and I actually wore switches out when developing this sketch so I replaced the shield as I had similar problems to what you are...

Well it seems to me that a discussion on the hardware resolved your buttons issue. I don't have a configured Arduino to guide you so am unable (and unwilling) to document a user manual. Hitting save in the setup menu will save the parameters to the UNO's EEPROM and it should be read from...

You've told me you have a problem. I've told you what your problem is. Its up to you to either use the supported hardware or modify the code to suit your hardware. There is no need for discussion except to say: The original LCD library was written by a third party specifically for the...

The reason why you are frustrated is that you are using different hardware to what was specified. Arduino is not a plug and play environment. Therefore, it is up to you to change the code to suit your hardware or if you can't do that, adopt the exact hardware that has been specified in terms of...

The Eeprom library is probably a standard Arduino library so a version was probably already installed. The other libraries are unknown to the Arduino environment so they had to be unzipped into a folder as per the first post. I have not provided a library but a complete working environment...

Please read post #4 which explains why you are getting that error. Review the first post again as it tells you what to do. Also, when you get it going, be sure to modify the code as per the later bug fix on GoDivide()

I don't know if it helps but before they sold Optimum, I purchased a Seig SX3 from Hare and Forbes with MT3 spindle and a 1/2" thread. I made a new drawbar. I've never used any 1/2" tooling. I just made sure every MT3 tool I bought had a M12 thread as I'm a metric only guy! Details of making...

A few Aussies have bought involute gear cutters from CTC tools in Hong Kong. Most have purchased a complete module set. See: http://www.ctctools.biz/hss-involute-gear-cutters/ With the number of Arduino based indexing scripts for rotary tables on this forum, you can't go wrong.

The approach I took on this thread http://www.homemodelenginemachinist.com/showthread.php?t=25091&page=3 was to accumulate the fractional error and add a step when it was > 1.0 add another step. Chuck Fellowes followed another approach. For the start of each division, he tracked how far around...

Unfortunately, this will not work becasue the float has to be converted back to an integer to determine the number of steps to move. So either you will end up truncating or incrementing the integer value. This will lead to errors if the number of steps per division does not end up being a whole...

Personally, I think the advice to find an old lathe is a bit out of touch today. For starters they are probably imperial and Australia has well and truly forgotten what that is. I've even banned tape measures in inches from my life even though I'm old enough to remember the conversion to metric...

Good on you. If I were you, I'd keep fixing mowers for a month or so and wait until about November when Hare and Forbes here in Brisbane have their annual sale. With your budget, the machine I would have my eye on is the AL250G and you should get 10% or so off at least. See...

I think you guys missed the point. You can buy direct from Ditron. They ship by DHL. Back in 2014, The freight was USD 119 and the total cost landed to Australia was USD $370 for a 2 axis, 1 micron kit with a slimline scale for my AL320-G. At todays exchange rate, that will still be under $500...