tag:blogger.com,1999:blog-8639215628525378898.post3677289243177261557..comments2023-09-20T15:32:40.483+01:00Comments on Reprap development and further adventures in DIY 3D printing: Bowden Extruder - DIY RepStrap build for 1.75mm or 3mm Filament.RichRap3Dhttp://www.blogger.com/profile/09348596756294999378noreply@blogger.comBlogger5125tag:blogger.com,1999:blog-8639215628525378898.post-14285188298984190932013-05-29T14:35:32.040+01:002013-05-29T14:35:32.040+01:00Hi Rich,
Did you have to change anything with your...Hi Rich,<br />Did you have to change anything with your nozzle geometry or hotend now that the filament is placed in compression over a longer distance and may tend to buckle?Anonymoushttps://www.blogger.com/profile/03606475823356317595noreply@blogger.comtag:blogger.com,1999:blog-8639215628525378898.post-9386172423681829272013-05-21T16:30:31.138+01:002013-05-21T16:30:31.138+01:00good work bro
contratulations!good work bro<br />contratulations!sacamantecashttps://www.blogger.com/profile/00894387080254543679noreply@blogger.comtag:blogger.com,1999:blog-8639215628525378898.post-5152273156127394552011-04-14T23:48:22.536+01:002011-04-14T23:48:22.536+01:00Hi Rich,
Tks for the reply. I understand what you ...Hi Rich,<br />Tks for the reply. I understand what you are at now. I couldn't figure where the hot end would connect, but you are positioning the extruder "cold end" remotely, and clever use of the pneumatic connector.Ivor O'Sheahttps://www.blogger.com/profile/10246251303703200543noreply@blogger.comtag:blogger.com,1999:blog-8639215628525378898.post-41590812363567792192011-03-16T21:33:13.378+00:002011-03-16T21:33:13.378+00:00Hi #6
The push-fit pneumatic connectors allow the...Hi #6<br /><br />The push-fit pneumatic connectors allow the very slippery PTFE tube to be held (but also easy to remove) so you can pass the filament via the tube to a very light weight hot-end.<br />Other people glue the PTFE tube, but that's not great and a few screw the tube onto a nut or stud, bit I like the push-fit's.<br /><br />It also means I can use the same remote extruder body to drive 3mm or 1.75mm filament, and just change the push fits and hot-end.<br /><br />It should be easier to see what I'm doing when I post the finished hot-end (I'll try to do that tomorrow).<br /><br />And yes, it's high density ply made from laminated wood veneer and resin, it feels like Tufnol and machines easily like Delrin/Acetal and is very strong and light weight.<br /><br />I do all my photo's on the same green 10mm grid, so the ply is 12mm and 14mm in this extruder.RichRap3Dhttps://www.blogger.com/profile/09348596756294999378noreply@blogger.comtag:blogger.com,1999:blog-8639215628525378898.post-37411958164065858742011-03-16T02:40:10.193+00:002011-03-16T02:40:10.193+00:00Hi Rich,
Nice bit of construction. What's the ...Hi Rich,<br />Nice bit of construction. What's the purpose of the push-fit connector?<br />Is that a high-density ply or some kind. Haven't seen much of that round here. What thickness is it so I can get a scale?<br />Tks,<br />No.6.Ivor O'Sheahttps://www.blogger.com/profile/10246251303703200543noreply@blogger.com