tag:blogger.com,1999:blog-4339813531032979196.post200151019659470296..comments2024-02-28T07:32:59.864+00:00Comments on HydraRaptor: Screw Top Potnopheadhttp://www.blogger.com/profile/12801535866788103677noreply@blogger.comBlogger12125tag:blogger.com,1999:blog-4339813531032979196.post-91129723925603687042010-05-08T15:45:48.550+01:002010-05-08T15:45:48.550+01:00well, not a picture of mine exactly, but it's ...well, not a picture of mine exactly, but it's a Therm-a-jug such as is seen on ebay for 25 dollars or so. The threads are not at all fine. they are as thick as a pen refill or a bit thicker. There is about three or three and a half threads per 3/4 inches without measuring anything exactly.Kittyhttps://www.blogger.com/profile/01557351106939073428noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-88710612788146359832010-05-07T01:10:19.064+01:002010-05-07T01:10:19.064+01:00It may be possible if the thread is not too fine. ...It may be possible if the thread is not too fine. The difficult thing would be measuring it and making something to fit. It may take a few iterations. Do you have a picture?nopheadhttps://www.blogger.com/profile/12801535866788103677noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-83921489232430144422010-05-06T19:06:57.924+01:002010-05-06T19:06:57.924+01:00Can you make a lid for an existing metal jug or do...Can you make a lid for an existing metal jug or do you know what I should search for to find someone who can make one? I have an old thermos who's lid had gotten a hole in it. I'd appreciate any help. thanks, KittyKittyhttps://www.blogger.com/profile/01557351106939073428noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-17167413379937468102009-06-26T20:02:57.927+01:002009-06-26T20:02:57.927+01:00Hello Bogdan,
I don't use different g-code f...Hello Bogdan,<br /> I don't use different g-code for different plastics. I do change the temperatures and feed rates but I don't use the values in the g-code. I only use the g-code to specify the path the extruder takes. I ignore all the other information in it.<br /><br />You are welcome to the files, the pot is 2MB and the lid 1MB, but any speed and temperature information in them will be rubbish so you can't just send them to a machine.<br /><br />It looks like your objects are not sticking to the base well enough. It is very difficult to get this just right with HDPE so it is held down and still peelable. I tend to have to use a chisel to get the raft off the object.<br /><br />To get the right amount of adhesion to the raft I vary the temperature of the first layer and / or the height of the first layer. To ensure the raft is at a consistent temp I cool it with a fan for about 1 minute.<br /><br />The parameters I use are:<br /><br />HDPE.raft_temp = 215<br />HDPE.first_outline_temp = 230<br />HDPE.first_layer_temp = 205<br />HDPE.layer_temp = 240<br /><br />5C or 0.05mm first layer height make noticeable differences in the raft adhesion.<br /><br />I do the first layer at 4mm/s and the rest at 8mm/s.<br />The filament is extruded through a 0.5mm aperture, swells to about 0.8mm and stretched back to 0.5mm. The layer height is 0.4mm giving a filament width of 0.6mm.<br /><br />You can better corner definition with HDPE by cooling the object with a fan while building, but you need a well insulated extruder.nopheadhttps://www.blogger.com/profile/12801535866788103677noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-76026436602917991212009-06-26T14:32:56.569+01:002009-06-26T14:32:56.569+01:00nophead,
care to share g-code that works with HDP...nophead,<br /><br />care to share g-code that works with HDPE, not important what object. I'm trying for weeks to get usable output using HDPE and all I'm getting is garbage :( (managed to get very good prints from ABS and PP .. but HDPE is just not working for some reason)<br /><br />some attempts:<br />picasaweb dot google dot com /lh/view?uname=bogdan.kecman&tags=HDPEBogdan Kecmanhttps://www.blogger.com/profile/09655477648123886945noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-75720041776195591582008-09-24T08:54:00.000+01:002008-09-24T08:54:00.000+01:00Andy D., The files are now in the wiki hereAndy D.,<BR/> The files are now in the wiki <A HREF="http://objects.reprap.org/wiki/ScrewTopPot" REL="nofollow">here</A>nopheadhttps://www.blogger.com/profile/12801535866788103677noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-45471855350274793002008-09-16T15:07:00.000+01:002008-09-16T15:07:00.000+01:00Wow, that's so great!Wow, that's so great!chrishttps://www.blogger.com/profile/11266112716952709741noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-10106229868417470452008-09-06T07:10:00.000+01:002008-09-06T07:10:00.000+01:00Andy D, Yes when I get home.Andy from..., Yes he...Andy D,<BR/> Yes when I get home.<BR/>Andy from...,<BR/> Yes he will be turning in his grave (clockwise of course). With this sort of fabrication there is no need for standardised threads.nopheadhttps://www.blogger.com/profile/12801535866788103677noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-39818026937427251822008-09-02T11:36:00.000+01:002008-09-02T11:36:00.000+01:00You won't get any awards from the Whitworth Societ...You won't get any awards from the Whitworth Society but it's an impressive achievement all the same.<BR/><BR/>This project is exactly the kind of thing I'd want this kind of machine for....Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-34242686895077910912008-09-02T01:59:00.000+01:002008-09-02T01:59:00.000+01:00That's AWESOME! :) Can you post this in the objec...That's AWESOME! :) Can you post this in the object repository? Great work!Andy D.https://www.blogger.com/profile/16618445790245626648noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-64112103655076256332008-09-01T23:17:00.000+01:002008-09-01T23:17:00.000+01:00Wow, it looks very neat! Very useful to make closa...Wow, it looks very neat! Very useful to make closable flasks of any size... there should be a 'flask wizard!' in which you only need to specify major properties and it generates a printable .stl :)Erik de Bruijnhttps://www.blogger.com/profile/09433438819279256757noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-19368461145532844582008-09-01T21:18:00.000+01:002008-09-01T21:18:00.000+01:00wow cooler than ever.somewhere to put all those li...wow cooler than ever.<BR/><BR/>somewhere to put all those little buts you strip of anything you throw away. (At least I do anyway)<BR/><BR/>sortedAnonymousnoreply@blogger.com