https://wiki.opensourceecology.org/api.php?action=feedcontributions&feedformat=atom&user=Tim+Schmidt 2026-04-04T11:01:15Z User contributions MediaWiki 1.39.13 https://wiki.opensourceecology.org/index.php?title=Gridbeam&diff=67535 2012-06-27T15:00:04Z

<p>Tim Schmidt: </p> <hr /> <div>Grid Beam - simple modular construction technique<br /> <br /> Links:<br /> * http://www.gridbeamers.com/<br /> * http://gridbeam.biz/photos.htm<br /> * http://www.gridbeamnation.com/<br /> * http://www.gridbeamwiki.org/<br /> <br /> Photos:<br /> * https://secure.flickr.com/photos/nikolayhg1/sets/72157629932382005/<br /> <br /> [[Category: Open Hardware]] [[Category: Construction]]</div>

Tim Schmidt https://wiki.opensourceecology.org/index.php?title=LifeTrac_Questions&diff=66056 2012-06-17T19:53:16Z

<p>Tim Schmidt: </p> <hr /> <div>'''Point:''' As far as we know, [[LifeTrac]] is the only device that includes the functionality of an agricultural tractor and skid-steer loader in one.<br /> <br /> '''Skid Loader specialization:'''<br /> *Hydraulic drive allows immediate reversal of direction - allowing for rapid digging/moving tasks<br /> *Tight turning because the wheels skid on the ground (hence the name). A skid steer can essentially turn a circle in place<br /> *Hydraulic takeoff can power a variety of implements<br /> *Heavy duty tires, about $300 each<br /> *Quick attach plate is used for rapid interchange of implements<br /> <br /> '''LifeTrac Comparison to Skid Loader:'''<br /> *Hydraulic drive just like in skid steers has identical performance.<br /> *Tight turning is achieved via articulation of the tractor up to about a 40 degree angle<br /> *Hydraulic takeoff can power a variety of implements<br /> *16&quot; truck tires with chains attain high performance at a cost of $30 per wheel (with used tires)<br /> *Quick attach plate is used for rapid interchange of implements<br /> <br /> <br /> '''Tractor Specialization:'''<br /> *Faster speed and larger size allows large tracts of land to be worked<br /> *Power take off shaft can power a variety of implements<br /> *3-point hitch allows the use of a wide range of agricultural implements on the back of the tractor<br /> *Large rear wheels provide effective traction; dually (doubled) wheel configuration may be used<br /> <br /> '''LifeTrac Comparison to Tractor:'''<br /> *High speed can be achieved by going into 2 wheel drive mode, for large-scale agricultural tasks<br /> *Power take off (PTO) shaft can power a variety of implements; PTO is movable, and can be attached on rear, on quick attach plate, or anywhere else.<br /> *Movable 3-point hitch allows the use of a wide range of agricultural implements - either on the end of the tractor or on the front quick attach plate.<br /> *4 wheel drive, inexpensive wheels with chains provide good traction; dually wheel configuration may be used<br /> <br /> '''Discussion:'''<br /> *LifeTrac has the quick back-and-forth motion found in skid steers - to allow effective digging/moving functions with loader. At the same time, it has the speed and PTO/3-point hitch ability that makes it capable of any agricultural tasks, up to about a 40 acre scale (about 1 hp/acre figure of merit). One cannot do effective, accurate digging with a tractor, where one cannot make sharp turns and must change gears to change direction. All in all, using industrial equipment, one needs both a tractor and a skid loader to do all the functions of which LifeTrac is capable.<br /> <br /> *'''Does anyone know of any single device that has the functionality of both a standard agricultural tractor and a skid steer in one, as found in LifeTrac?''' See discussion - [http://openfarmtech.org/index.php?title=LifeTrac_Competitors]<br /> [[Category:Red Pages]]<br /> <br /> == square tube construction techniques ==<br /> <br /> The basic frame is bolted together from 4x4x1/4&quot; square tubing.<br /> That basic frame looks very similar to the &quot;grid beam&quot; techniques.<br /> <br /> * Would it be possible to build the basic frame using standard grid beams? (2x2&quot; square tubing?)<br /> * Since both LifeTrac and &quot;grid beam&quot; are open-source, is it possible to make a modular construction system that combines the best parts of both systems?<br /> <br /> More about grid beam:<br /> * http://www.gridbeamers.com/<br /> * http://www.creatrope.com/blog/make/a-modular-halloween-with-grid-beam/<br /> * http://gridbeam.biz/<br /> * http://p2pfoundation.net/Grid_Beam_Building_System<br /> * [[Eric Hunting Resource Guide#Matrix.2FBox Beam.2FGrid Beam]]<br /> * http://reprap.org/wiki/Frame_material#grid_beam<br /> * is there a grid beam wiki? - Lansing Makers Network has begun hosting http://gridbeamwiki.org/ It's being populated in preparation for Detroit Maker Faire 2012, so will be a little rough around the edges until then.<br /> <br /> [[Category:LifeTrac]]</div>

Tim Schmidt https://wiki.opensourceecology.org/index.php?title=User:Tim_Schmidt&diff=66055 2012-06-17T19:51:39Z

<p>Tim Schmidt: </p> <hr /> <div>timschmidt at gmail com<br /> <br /> I maintain http://gridbeamwiki.org/<br /> <br /> I've worked within the RepRap project for several years.</div>

Tim Schmidt https://wiki.opensourceecology.org/index.php?title=User:Tim_Schmidt&diff=66054 2012-06-17T19:50:12Z

<p>Tim Schmidt: Created page with &quot;I maintain http://gridbeamwiki.org/.&quot;</p> <hr /> <div>I maintain [[http://gridbeamwiki.org/]].</div>

Tim Schmidt