Date: Thu, 20 Sep 2012 01:38:33 -0700 (PDT)
From: Daid <daid...@gmail.com>
To: ultimaker@googlegroups.com
Message-Id: <4cd514c5-4ca4-431b-a53b-dc3ee8ef1c98@googlegroups.com>
In-Reply-To: <0aa74f39-10cc-4a69-8239-401872050526@googlegroups.com>
References: <CAJa3Yu6BhE9KX1W9Saave0jDPXumi-ocyL8Ak=DUa9w+PRw-SQ@mail.gmail.com>
 <0aa74f39-10cc-4a69-8239-401872050526@googlegroups.com>
Subject: Re: interesting note about the belts on the Ultimaker
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While you could compensate for backlash, it would not remove the play from 
the system (which is also present if you have backlash) and the play causes 
problems no software fix can solve.

On Thursday, September 20, 2012 10:08:11 AM UTC+2, catohagen wrote:
>
> I work with cnc machines, and usally backlash is adjusted with parameters 
> in the control, maybe this could be fixed in the UM firmware ?
>>
>>
> if using a dial gauge and your X-axis have 0.3mm backlash (gcode moves the 
> axis 40mm but the hardware moves 39,7mm) the firmware could handle this
> with driving the stepper the desired extra steps to compensate for 
> backlash.
>

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While you could compensate for backlash, it would not remove the play from the system (which is also present if you have backlash) and the play causes problems no software fix can solve.<br><br>On Thursday, September 20, 2012 10:08:11 AM UTC+2, catohagen wrote:<blockquote class="gmail_quote" style="margin: 0;margin-left: 0.8ex;border-left: 1px #ccc solid;padding-left: 1ex;">I work with cnc machines, and usally backlash is adjusted with parameters in the control, maybe this could be fixed in the UM firmware ?<blockquote class="gmail_quote" style="margin:0;margin-left:0.8ex;border-left:1px #ccc solid;padding-left:1ex">
</blockquote><div><br></div><div>if using a dial gauge and your X-axis have 0.3mm backlash (gcode moves the axis 40mm but the hardware moves 39,7mm) the firmware could handle this</div><div>with driving the stepper the desired extra steps to compensate for backlash.</div></blockquote>
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