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cmcgrath5035
ModeratorSorry – been away for a couple days.
I saw your message to “Contact Us”, agree that it sounds like your Boot Loader is borked and needs to be reloaded.Review this Wiki item
If you do not have an Atmel ICE, sending board back to Synthetos for re-programming is probably the quickest way.
ModeratorIf spindir is flashing constantly, I doubt any response is coming back from tinyG. Does the SPJS widget indicate successful connection?
I assume you have tried to hit the reset button, but flashing spindir persists.
If so, you should try to reload FW 440.20 from
then reload your machine setup parameters.
ModeratorI do 99% of my forum work using Chrome (“most recent”) on Linux (openSUSE).
I don’t think I have ever seen this issue, but as moderator I do have some expanded powers (few of which I really understand).Given you varied experience, I am not sure what to raise with Word Press, the forum tool provider.
I am wondering if your experience is browser cache related.
When you hit it again, try ‘clearing cache’ and reloading the browser page – make a difference?ModeratorI would not recommend paralleling two drivers.
If you look inside the driver devices, you will see that current is dynamically managed. When a step pulse (or microstep pulse) is called for by the input, the driver output turns on, applying Vmot to the windings and current is monitored by a comparator circuit, comparing actual current flow in the winding to the settings pot on tinyG.
Most folks interfacing these sorts of high power loads use external drivers connected to tinyG.
If your motors really need that sort of current, you likely need a better thermal management solution than provided on tinyG.ModeratorI does appear, however, that you can now reply to threads.
Likely some sort of spam protection filter, but that is a WAG on my part.For debug purposes, what OS and what browser do you normally use to interface with the forum?
ModeratorOn occasion I have had ‘login’ status change while preparing a reply.
Just start a new topic, mention old thread for continuity
ModeratorAre you perhaps not logged in?
If you are, try logging out and back in again.
Forum tool working for meModeratorAre you Measuring voltage at Spin or SpinPWM?
SpinPWM is pulse with modulated, can’t measure with a voltmeter.Spin should be logic high and stable when you execute M03, logic low when executing M05.
No good explanation for variations in readings.
What sort of voltmeter do you have.ModeratorI am not sure what part you don’t understand
An “ideal” voltmeter has infinite impedance, practical voltmeters have ‘really high’ impedance.
Ideal ammeters have zero impedance, practical ammeters have very low impedance.Voltmeter “in series” is seldom the right way to do/measure something.
I am very confused, however, as to how you can measure 3.41V in a 3.3V system.
What does that same voltmeter read when measuring the 3.3V supply?ModeratorYou have M1 mapped to X
You have M2 and M3 mapped to Y
You have M4 mapped to ZKey parameter is $_ma, _ = 1,2,3,4
tinyG wiki is here
ModeratorPlease post your settings (Result of $$ command) to a cloud drive and post a URL here.
Sounds like a settings issue.WHat do you use to communicate with tinyG? (CoolTerm, Chilipeppr, etc.)?
ModeratorInteresting project.
tinyG acts on Gcode, XYZ and ABC axes.
Your could rewrite Gcode(or generate Gcode) that pre-processes your intent.
This topic is probably better asked at
ModeratorYou seem to have cover the possibilities – sounds like bad connector or perhaps bad FTDI device and, as always, a possible bad solder joint.
ModeratorEither of those opto isolators should work fine, as long as you have reasonable soldering skills.
ModeratorProbably, but depends on the SSR you are looking at.
Some SSRs are only engineered to switch AC loads, you need DC.
Most SSRs are optoisolator Front-ends with high power control backends -
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