Bonding of flex PLA with non-flex PLA hi all, I am developping hybrid objects which need to be printed in both Flex and non-Flex. This is one example: d2b5ca33bd970f64a6301fa75ae2eb22_preview_featured.jpg mod_embed_images_loadimage('5fe0551649bb2248fa92a6fa3175cee6', '/forum/thumbcache/0ab/127/435/3c0/949/78a/25d/22c/e3a/329/e2_800x400.png', 'http://thingiverse-production-new.s3.amazonaws.com/renders/a2/4b/91/76/de/d2b5ca33bd970f64a6301fa75ae2eb22_preview_featured.jpg', 'https://reprap.org/forum/addon.php?262,module=embed_images,check_scaling=1,url=http%3A%2F%2Fthingiverse-production-new.s3.amazonaws.com%2Frenders%2Fa2%2F4b%2F91%2F76%2Fde%2Fd2b5ca33bd970f64a6301fa75ae2eb22_preview_featured.jpg', '', 737896, 800, 400, 'Loading image ...', false); d2b5ca33bd970f64a6301fa75ae2eb22_preview_featured.jpg mod_embed_images_loadimage('6b04ef50360263781848994b0a0e5032', '/forum/thumbcache/8d0/853/eac/9dc/01e/0c6/4e4/af9/b2b/7db/ba_800x400.png', 'http://thingiverse-production-new.s3.amazonaws.com/renders/df/08/8d/ba/15/d2b5ca33bd970f64a6301fa75ae2eb22_preview_featured.jpg', 'https://reprap.org/forum/addon.php?262,module=embed_images,check_scaling=1,url=http%3A%2F%2Fthingiverse-production-new.s3.amazonaws.com%2Frenders%2Fdf%2F08%2F8d%2Fba%2F15%2Fd2b5ca33bd970f64a6301fa75ae2eb22_preview_featured.jpg', '', 737896, 800, 400, 'Loading image ...', false); I do this by changing the filament during pause. However: the bond between the two is lousy. It will separate on the surface of the bond very easy. Is there a solution to prevent this ? Thomas https://reprap.org/forum/read.php?262,737896,737896#msg-737896 Sat, 18 Jul 2026 14:39:08 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?262,737896,738205#msg-738205 Re: Bonding of flex PLA with non-flex PLA https://reprap.org/forum/read.php?262,737896,738205#msg-738205 I get it!

yes.. it must be different, if not it would not flex.]]> Replace Printing Thu, 12 Jan 2017 17:56:45 -0500 https://reprap.org/forum/read.php?262,737896,738204#msg-738204 Re: Bonding of flex PLA with non-flex PLA https://reprap.org/forum/read.php?262,737896,738204#msg-738204
Hope one of the tips works out for you.]]> anvoice Printing Thu, 12 Jan 2017 17:55:15 -0500 https://reprap.org/forum/read.php?262,737896,738068#msg-738068 Re: Bonding of flex PLA with non-flex PLA https://reprap.org/forum/read.php?262,737896,738068#msg-738068
Quote
VDX
... if you reduce the height and rise the temperature for the first layer of the second print, then the bond will be much stronger ...

I can try that.
Thanks for the tip. Will try and get back.]]> Replace Printing Thu, 12 Jan 2017 11:12:14 -0500 https://reprap.org/forum/read.php?262,737896,738067#msg-738067 Re: Bonding of flex PLA with non-flex PLA https://reprap.org/forum/read.php?262,737896,738067#msg-738067
Quote
anvoice
Would printing them separately and gluing or solvent-welding the parts together not work for you?

I can't think of anything short of raising temperatures to the max (both bed and nozzle) that would improve adhesion between incompatible materials.

Maybe,
I have not tried to glue the FLEX. I can very well glue the non-flex.
So if gluable, yes it would help.
Even in non-flex, the cyanoxx glue is my friend due to build platform size limits .....

But the question came out of my 3dPrint eagerness, not my afterprint activities (:P)

Bytheway.. why state 'incompatible' ? Is'nt PLA PLA ?]]> Replace Printing Thu, 12 Jan 2017 11:10:53 -0500 https://reprap.org/forum/read.php?262,737896,737940#msg-737940 Re: Bonding of flex PLA with non-flex PLA https://reprap.org/forum/read.php?262,737896,737940#msg-737940 VDX Printing Thu, 12 Jan 2017 04:08:25 -0500 https://reprap.org/forum/read.php?262,737896,737898#msg-737898 Re: Bonding of flex PLA with non-flex PLA https://reprap.org/forum/read.php?262,737896,737898#msg-737898
I can't think of anything short of raising temperatures to the max (both bed and nozzle) that would improve adhesion between incompatible materials.]]> anvoice Printing Thu, 12 Jan 2017 00:57:44 -0500 https://reprap.org/forum/read.php?262,737896,737896#msg-737896 Bonding of flex PLA with non-flex PLA https://reprap.org/forum/read.php?262,737896,737896#msg-737896
I am developping hybrid objects which need to be printed in both Flex and non-Flex.

This is one example:




I do this by changing the filament during pause.
However: the bond between the two is lousy. It will separate on the surface of the bond very easy.

Is there a solution to prevent this ?

Thomas
]]> Replace Printing Thu, 12 Jan 2017 00:35:25 -0500