- MikeParticipantApril 24, 2016 at 8:53 pmPost count: 19
I really like the RepRap iTopie, so have started to build one. I didn’t build my MPCNC with enough Y-axis to cut the larger parts of the frame in one operation, though, so have split each large part of the frame into two pieces. I could have done a jig or some alignment pins and moved the workpiece for two operations, but I’m only building one, so decided to try it this way.
The vertical portion of the frame is symmetrical, so I’m cutting it as two identical pieces, flipping one, and joining them with a big lap joint. The horizontal portion is not symmetrical, and has pockets along its face, so I am going to do it with two dovetail joints. I’ve only cut the vertical portion so far.
I have done absolutely zero woodworking before, so it will be interesting to see how (if) this works out.
Attachments:vicious1KeymasterApril 25, 2016 at 10:20 amPost count: 2669
Wow, so far so good. Your cuts seem absolutely perfect. Nice work.JeffParticipantApril 27, 2016 at 5:48 amPost count: 158
That’s pretty awesome. Please, keep sharing.MikeParticipantApril 27, 2016 at 9:49 pmPost count: 19
Thanks guys. Ran out of MDF. Will cut the horizontal pieces hopefully tomorrow. Will post results here.MikeParticipantMay 9, 2016 at 9:20 pmPost count: 19
I finally went and got some more MDF. Here is the horizontal portion of the frame. I was depending too much on my corner clamps, and had the workpiece try to lift during one of the drills, which is why you see filler on the one half. I’ll start throwing a screw or three through the middle portion if I do any more of this sort of cutting in the future.
I also (perhaps foolhardily) printed all of the 3d printed parts in one go, which took a bit over 18 hours on my machine. Electronics and hardware are still trickling in from China.
Attachments:MikeParticipantSeptember 9, 2016 at 9:07 pmPost count: 19
Wow, I’m totally 4 months behind on when I should’ve updated this thread. I finished the iTopie around the middle of May. Frame cut and parts printed on my MPCNC. It’s been an awesome printer and my go-to for PETG printing. As far as I know, this may be the only iTopie made with 3/4″ MDF. I did it thick because I wanted a solid printer. I definitely have that in this build, but 3/4″ is probably overkill.
This thing has been a tank. I was worried about the dovetail joints being on the horizontal portion of the frame, but they haven’t presented any problem at all.
Attachments:Solerom TapParticipantOctober 24, 2016 at 7:35 amPost count: 1
Nice work! I have been looking for a real project and seeing your work inspired me to do the same! Itopie would be my first project using the MPCNC. Any tips on speed and depth of cut and anything else you can impart would be greatly appreciated! Thanks. Again, nice work.
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