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| Building a 3D Printer, RepRap Mendel Prusa2 by craynerd |
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| raynerd:
After finishing my CNC machine, I`d quite like to have a go at a 3D printer as the concept amazes me. I received my parts a few days back, really chuffed with them... M8 threaded rod and 100 nuts and washers, along with a mix of other fasteners came to about £12 Started on the triangular sides: Next step is to connect the sides together. |
| pete3000:
Looks interesting from reading the reprap wiki, need to finish my seig x3 cnc conversion before I start on more shiny toys :Doh: . Few questions I noticed several extruder design, which looked over complicated and a bit cobbled. could you use a mini glue gun element/soldering iron element for melting the plastic wire? The feed grip looked to be a weak point, could a mig welder pulley and tensioner feed be adapted with a stepper. Much harder wearing? Just ideas. Wher did you get your kit from? :ddb: |
| ParCan:
looking good already craynerd. Pete3000 Most Glue guns work on 240 volts. Just no thanks ! I tried a weller soldering iron heater based hot end. The thermal Junction was to big to hold the temperature where it's needed. Hot End / Nozzle design is a black art at the best of timee. The Wade and Gregs Extruder designs work fine. The hobbed bolt does have to be well made, and believe me it's not easy. Alex. |
| j45on:
Looking good :thumbup: I have a Printrbot 3d printer coming soon :ddb: |
| raynerd:
Hi guys, sorry, missed these replies! Thanks for looking and commenting Pete3000 - ParCan printed the parts :beer: Ok, so I have been busy with work but spent a little more time yesterday on the Prusa: So got all the cross members on to link the two sides together and then jigged it out. Now I must admit, I spent about 1 1/2 hours getting it square as it kept twisting! 8mm linear bearings clipped into printed bearing holders Then mounted the ply bottom table onto the silver steel using the bearings. At this point I realised I`d mounted the bars on the wrong side of the frame. On the Prusa2 the clips should hold the bars at the top of the threaded rod and not hanging as it is in the photo. So I`m now running an evening behind as I`ve now flipped the bars around and mounted the motor and timing pulleys... update tomorrow! |
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