Anyone use edrawings on iPad or a good alternative? Have tried eDrawings on an iPad 2 at work and an iPad Air at home and both unsuccessfully. iPad 2 is just outdated me thinks as it runs low on memory on large assemblies, actually not that large, even something as small as 10MB. eDrawings on iPad Air ain't much better.

Have tried using 3D PDF RReader but 3D PDF files are huge. A 27MB solidworks assembly file goes to 170MB. Also tried AutoDesk360 but one needs to upload to their site online and then download to ipad so IP is sketchy.