bravach repstrap Hello everyone, I'm fairly new to the 3D printing community but I started one month ago to develop my own repstrap inspired by the eventorbot and other printer from the wiki. It is now complete in its 1.0 version and able to print at slow speed (30 mm/s). I've some more ideas and material to upgrade it in a better, more rigid version (with precision linear axis) which would allow faster printing speed. In the meantime, here are some pictures of the printer in its current form : 582486_10151260304314081_167118758_n.jpg mod_embed_images_loadimage('58de8234e3e741a357eb8c2afb25c14e', 'https://reprap.org/forum/addon.php?152,module=embed_images,url=https%3A%2F%2Ffbcdn-sphotos-e-a.akamaihd.net%2Fhphotos-ak-prn1%2F582486_10151260304314081_167118758_n.jpg', 'https://fbcdn-sphotos-e-a.akamaihd.net/hphotos-ak-prn1/582486_10151260304314081_167118758_n.jpg', 'https://reprap.org/forum/addon.php?152,module=embed_images,check_scaling=1,url=https%3A%2F%2Ffbcdn-sphotos-e-a.akamaihd.net%2Fhphotos-ak-prn1%2F582486_10151260304314081_167118758_n.jpg', '', 177904, 800, 400, 'Loading image ...', false); 603041_10151249324319081_373169422_n.jpg mod_embed_images_loadimage('d8db28e5843cdf5398d468ee668d2e70', 'https://reprap.org/forum/addon.php?152,module=embed_images,url=https%3A%2F%2Ffbcdn-sphotos-d-a.akamaihd.net%2Fhphotos-ak-snc6%2F603041_10151249324319081_373169422_n.jpg', 'https://fbcdn-sphotos-d-a.akamaihd.net/hphotos-ak-snc6/603041_10151249324319081_373169422_n.jpg', 'https://reprap.org/forum/addon.php?152,module=embed_images,check_scaling=1,url=https%3A%2F%2Ffbcdn-sphotos-d-a.akamaihd.net%2Fhphotos-ak-snc6%2F603041_10151249324319081_373169422_n.jpg', '', 177904, 800, 400, 'Loading image ...', false); And also a test part made before (on the right) and after (on the left) tuning parameters in kisslicer : 734431_10151260304169081_171944632_n.jpg mod_embed_images_loadimage('14fe858d0e8ac322d0f69c5cbf364ec1', 'https://reprap.org/forum/addon.php?152,module=embed_images,url=https%3A%2F%2Ffbcdn-sphotos-f-a.akamaihd.net%2Fhphotos-ak-frc1%2F734431_10151260304169081_171944632_n.jpg', 'https://fbcdn-sphotos-f-a.akamaihd.net/hphotos-ak-frc1/734431_10151260304169081_171944632_n.jpg', 'https://reprap.org/forum/addon.php?152,module=embed_images,check_scaling=1,url=https%3A%2F%2Ffbcdn-sphotos-f-a.akamaihd.net%2Fhphotos-ak-frc1%2F734431_10151260304169081_171944632_n.jpg', '', 177904, 800, 400, 'Loading image ...', false); https://reprap.org/forum/read.php?152,177904,177904#msg-177904 Fri, 09 Oct 2026 22:52:53 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?152,177904,241802#msg-241802 Re: bravach repstrap https://reprap.org/forum/read.php?152,177904,241802#msg-241802




As the new bed is heavier, I had to design and machine an upgrade to ensure a relieve of the deformation under load :





I also bought an electronic level for machining complex part on another project but it is great to ensure the leveling of the bed :



And the first part after the modifications, a wade main gear :


]]> bravach General New Machines Topics Sun, 01 Sep 2013 14:38:07 -0400 https://reprap.org/forum/read.php?152,177904,196455#msg-196455 Re: bravach repstrap https://reprap.org/forum/read.php?152,177904,196455#msg-196455
I changed the fixation of the belt on the Y axis and the idler of the extruder (the new piece has a guide for the filament)


Here is the reinforcement of the Z-axis carriage with 4 linear bearings to add rigidity.


I changed the elastic aluminium coupler for a "cardan" printed one which is giving me better results in suppressing the wobble.

]]> bravach General New Machines Topics Sun, 31 Mar 2013 15:27:47 -0400 https://reprap.org/forum/read.php?152,177904,195181#msg-195181 Re: bravach repstrap https://reprap.org/forum/read.php?152,177904,195181#msg-195181
The X-axis (the one with the bed) flexes some tenth of millimeters from the side to the center of the beam but only because the rod aren't constrained enough by the hollow aluminium profiles on the side. To overcome this, I adjust the bed level around the center so the error is really low but it means that my parts can't be too large right now to keep the linearization.
To improve this, I will switch to plain steel or aluminium fittings.

I can't tell you if it is better or worse than a prusa since I have never seen one.]]> bravach General New Machines Topics Wed, 27 Mar 2013 04:00:28 -0400 https://reprap.org/forum/read.php?152,177904,195133#msg-195133 Re: bravach repstrap https://reprap.org/forum/read.php?152,177904,195133#msg-195133 i was designing a printer on a similar concept of the cantilevered y axis... i would like to know is how much does the y axis flex during its movement? is it better of worse than a standard prusa?]]> ekaggrat General New Machines Topics Tue, 26 Mar 2013 22:18:26 -0400 https://reprap.org/forum/read.php?152,177904,186111#msg-186111 Re: bravach repstrap https://reprap.org/forum/read.php?152,177904,186111#msg-186111 I printed a new part for the extruder with a filament guide to keep the filament centered (and so, keep a steady feeding).

All parts are custom made with my milling machine apart from the J-head and the printed extruder I buyed on e-bay (and also the "vitamins" like bearings, belts and aluminium pulley). I dimensionned them from the parts selection I made and from the steel/aluminium raw material stock I could find at my local dealer. I could have done a better job by going to a professionnal raw material vendor but they only sell in big quantities.

The current big mistake is on the X axis where the hollow profile doesn't put enough constraint on the steel rod. But hey, with my first prototype being now functionnal, I can print better parts to improve it.]]> bravach General New Machines Topics Wed, 20 Feb 2013 03:00:48 -0500 https://reprap.org/forum/read.php?152,177904,185140#msg-185140 Re: bravach repstrap https://reprap.org/forum/read.php?152,177904,185140#msg-185140
I was thinking of building an Eventorbot, but some emergency expenses blew the budget for it. I also have tons of dead printer parts and I think that after looking at what you did it is going to be the best route to follow. This way I won't deprive myself from a 3D printer and the only expense will be in the form of time and work (and learn more about them in the process). The unit built will always be useful and help make the parts for future units.

I see your frame uses some custom parts I assume you cut/machined yourself. Is it correct to think that those dimensions were taken from the size of rods you had available for your build? I can't tell from the angle of the pictures (perhaps a dumb question but I'm new at this)]]> Thanos_of_MW General New Machines Topics Sat, 16 Feb 2013 10:51:15 -0500 https://reprap.org/forum/read.php?152,177904,177904#msg-177904 bravach repstrap https://reprap.org/forum/read.php?152,177904,177904#msg-177904
I'm fairly new to the 3D printing community but I started one month ago to develop my own repstrap inspired by the eventorbot and other printer from the wiki.
It is now complete in its 1.0 version and able to print at slow speed (30 mm/s).
I've some more ideas and material to upgrade it in a better, more rigid version (with precision linear axis) which would allow faster printing speed.

In the meantime, here are some pictures of the printer in its current form :




And also a test part made before (on the right) and after (on the left) tuning parameters in kisslicer :

]]> bravach General New Machines Topics Sun, 20 Jan 2013 04:24:30 -0500