Keith, in your BOM pdf there is an error. If you try the link for "Build plate 12x24x3/16 (1/2)" you get an Amazon listing for wheels.

 

I was going to use your extruder build that you've posted a year ago or so but I think I've read that you don't think it's the cat's meow, correct?

 

I was initially looking at your build as an idea of putting a V-Slot frame around my 5 year old Makerfarm 10" Prusa i3v, but after looking at your BOM & looking at the parts I already have it might be worth my while to build this machine. I have been considering getting one of the 12" Tevo or Creality machines, but I don't like the Bowden setup & would probably want to change a few other things. If I build this, I probably won't start on it for a few months & maybe wait for black Friday sales in November.

Have you looked at sourcing some alternatives to the openbuilds parts from aliexpress? You can get a 10 pack of the Xtreme Mini V Wheels less bearings for $4.16. You can also get them with bearings for a little bit more, but I would probably get the better bearings from openbuilds. Those wheels are probably not as good of quality as openbuilds, but would be worth trying for that price. There are several places on there that sell these & I am not sure which is the best one.
[link removed]

You can also get the 6 - T Joining plates for $10.67 (I added the shipping into the price).
[link removed]

 

Most of the reviews on that site don't really give you much info & I suspect most are like the ones you mentioned on Amazon. Probably would be better to stick with known good wheels from openbuilds. I see the moderator removed my links. I will keep that in mind for future postings & not include links from China sites.

 

Hi Keith. I really like this build and am planning on building one but have a couple questions.

1) What springs are being used for the heatbed?
2) In one of the pictures of the Vulcan Pro it shows a case for a 128x64 display. Can you provide the files for that?
3) Out of curiosity is there a reason why the bottom screw blocks don't have a bearing?
4) I could be measuring something wrong in Sketchup, but I am getting different distances from the 2040 uprights to the center holes in the z screw blocks for the top (16.5mm) and bottom (15mm). That would make the leadscrew not parallel with the 2040 uprights. Can you confirm if I am missing something?
5) How does the X Axis belt attach to the X Carriage?
6) Is there an STL file for the X Axis Carriage?

Thanks,
Josh

 

Hey Keith,

I was wondering if you could share the skp file for the fan assembly mount and if you could share some photos of the actual project built, that would be awesome.

Thank you

 

Keith,

Can you validate your x-carriage.stl ? I thin that somehow you have a part of the mesh that is messed up. If you look at the "bottom" flat side that I am printing on my bed it seem to be missing features. ie like somehow a triangle section of the mesh is messed up. Thanks for posting your design. I have not had issues printing any other parts.

Jahr

 

Hi Keith,

When attaching the Tee plates to the X Axis extrusion, do you just use one screw on each end that you can get at? Or I was wondering if you did that, then unscrew the Tee plates, and add another 2 screws to each Tee plate to extrusion?

Thanks,
Josh

 

I did notice that the fan shroud (top portion of the cooling fan setup) is mirror so that it does not fit the way it is shown on the xtrdr page on 3dwrx.com. Just mirror in the slicer and it seems to print correctly.

 

Something else I've noticed. The mounting hole spacing on the xtdr is 20mm. However, the X carriage has the holes spaced at 25mm. Is that correct (or incorrect as it may be) or am I the only who has had that problem?

 

Not to continue nitpicking, but the entire x-carriage is skewed along multiple axes. Nothing lines up correctly. I'm not the greatest with Sketchup so I'm having trouble getting every flat and straight again.

 

After I've read your post about the mirrored fan shroud I checked it and you may be right, I didn't notice it since I was not going to use it since I was going to use a different fan, but I think it can be used as it's shown anyway.

I imported the extruder .stl to Fusion 360 to adapt it to my X axis. If the holes are not aligned it didn't matter in my case and that's why I didn't notice either.

 

It's not a big deal. I remodeled the x-carriage in Fusion 360. It's almost identical to the original. As for the fan shroud, I ended up reprinting it mirrored as I wanted to change the color anyway. But you're right, it still works either way.

 

No worries, Keith. I wasn't expecting you to jump on anything right now. The one I have now works but thanks for looking at it. Get to feeling better before dealing with us any more.

 

Hate to ask about this, Keith, but is the website having issues? I can't get to the build pages. I only need it for the measurements for the holes on the build plate.

 

Looks like the site is down. I tried it too and it's not available.

 

Hey Keith, wishing you a fast recovery. I've admired your work a long time in the forums. I'm a makerspace teacher/robotics educator at the elementary level. Thanks for all you do!

 

I would send you students if we were in the same area! You have been building curriculum with your guides and I have learned a lot from you. The biggest thing I try to teach is for kids to not be scared of what they don't know. We did a 3D printer camp last year and I scaffolded the instruction by teaching them to print pre-sliced g-code, then to slice pre-chosen STLs, then let them choose an STL from thingiverse, and finally introducing TinkerCAD. That was with younger students. I would love to host a camp where we would get older students in middle-high school to build something like your printers from scratch in a week and finding funding for the students to take their printers home with them.