tag:blogger.com,1999:blog-6738190553944814019.post2304170768152842740..comments2023-07-03T14:07:21.479+01:00Comments on Tech Guinea Pig: Investigating 3mm Filament for the SumPodFixerhttp://www.blogger.com/profile/08725069047803563396noreply@blogger.comBlogger6125tag:blogger.com,1999:blog-6738190553944814019.post-89161792127990409762011-11-07T23:44:31.133+00:002011-11-07T23:44:31.133+00:00Thanks for experimenting with out filament- looks ...Thanks for experimenting with out filament- looks fun!<br /><br />Our plastic diameter is specified as 2.84 nominal +/- 0.05mm (although many of our lines achieve +/- 0.02mm) to pass through a 3mm hole. For our 1.75mm material, it is actually 1.74 mm nominal (this is standard).<br /><br />A problem we have seen is the relatively high stiffness of the PLA to the low stiffness of the 'rigid'Faberdashery Ltd.https://www.blogger.com/profile/06141478489270150130noreply@blogger.comtag:blogger.com,1999:blog-6738190553944814019.post-23354787840272094202011-10-16T23:02:40.526+01:002011-10-16T23:02:40.526+01:00The clarification I received was it works, my poin...The clarification I received was it works, my point was it could be much better. As Richard wants to improve the machine he took my points on board and is continuing work on PET and my suggested PTFE pads; in place of the bearing.<br /><br />Still this only provides static pressure on the filment, which is fine if it's dimensionally consistent otherwise it's probable feeder problems willFixerhttps://www.blogger.com/profile/08725069047803563396noreply@blogger.comtag:blogger.com,1999:blog-6738190553944814019.post-25157758307087262272011-10-15T05:02:43.627+01:002011-10-15T05:02:43.627+01:00I'm a bit worried about that last bit. The bi...I'm a bit worried about that last bit. The bit about no tensioning. Did you ever get any clarification on the bearing and screw configuration you mentioned in a picture comment?Freyr Magnússonhttps://www.blogger.com/profile/02052820162244298592noreply@blogger.comtag:blogger.com,1999:blog-6738190553944814019.post-26629687193304346822011-10-14T18:31:41.802+01:002011-10-14T18:31:41.802+01:00Thanks for the feedback.
@Freyr
Yes it's for ...Thanks for the feedback.<br /><br />@Freyr<br />Yes it's for the *much* lower friction<br /><br />@RichRap<br />I'd heard Chinese filament varied considerably and also that it's the variation in diameter that causes feed problems. I imagine any filament that varies considerably would be a disaster for the SumPod, because there is no tensioner on the feeder.Fixerhttps://www.blogger.com/profile/08725069047803563396noreply@blogger.comtag:blogger.com,1999:blog-6738190553944814019.post-45028996931434815172011-10-14T18:18:38.527+01:002011-10-14T18:18:38.527+01:002.85 is normal
Faberdashery, orbi-Tech, ultimachi...2.85 is normal<br /><br />Faberdashery, orbi-Tech, ultimachine, makerbot, grrf, etc will all be under 3.0mm<br /><br />Only chinese stuff goes over 3.0 mm now. That can be from 2.6 to 3.5nm not great.RichRap3Dhttps://www.blogger.com/profile/09348596756294999378noreply@blogger.comtag:blogger.com,1999:blog-6738190553944814019.post-80001665303904544082011-10-14T16:31:53.141+01:002011-10-14T16:31:53.141+01:00I think 2mm and 4mm ID tubes are being used for 1....I think 2mm and 4mm ID tubes are being used for 1.75mm and 3mm filament respectively. Is the PTFE for lower friction? It's so much more expensive than PVC tubing maybe one should get some and run some experiments. It would help to have a sumpod for that bit though.Freyr Magnússonhttps://www.blogger.com/profile/02052820162244298592noreply@blogger.com