Thanks Keith,
I am using a local 3D Printer Service from 3D Hubs: Browse online 3D printing services to print the initial printed parts.

 

I am about to tear down a CoreXY printer and was looking at replacing it with a Cartesian type printer and I liked the looks of this unit. I need to have a 300x300 bed and saw some discussion on a printer that size. Was a BOM or cutting list ever published for a unit that size?

Also, I was looking at the TrueUp and TrueUp Glide and was wondering why, if for the TrueUp, a nylon bushing worked so great, why this one used the rods instead?

 

Thanks. Will look closer at the TrueUp then.

 

I have been wanting to replace the 200x300 bed on my CoreXY which would require modification to the frame. I have been having issues with it because of the build quality (it was my first) so figured if I was going to rebuild it, just might do a different one. The CoreXY is okay, but I like the Cartesian style better. I probably will keep the build height of the TrueUp the same. I have 350mm on my CoreXY, but I have never come close to needing to print anything that tall. Of course, since I will make this one shorter, the first job I'll have to do on it will need that height.

 

I was looking at the BOM and the parts for the frame look different from the images in the assembly guide and from the completed images is that an error or did you change the design for that size vslots

 

I worded that wrong the BOM list a piece of 20x20x250 and 20x60x250 but from the images they look like 20x40x250 and 20x80x250

 

Thank you for the fix sorry for being confusing

 

Hi, Just starting this build and I cannot find "X belt anchor bracket". I am thinking it is a printed part but not sure now. Can someone point me in the right direction. Thank you

 

Thanks Keith, is there an STL for that part? I spent some time searching but came up empty. Very nice design...Thank you for sharing it.

 

Got it sorted. Downloaded sketchup, loaded SketchUp STL | SketchUp Extension Warehouse, erased extra items from misc-parts-blk.skp, then exported STL. Seemed to work fine printing part now.

 

I don't know why, but I like this build more than the Trueup and decided to build it for myself.
Thank you for your time and energy to publish this build!

But there are 2 facts in the bom which confusing me.
I think you missed the universal plate from openbuilds and somehow wrote 2 heatbeds instead.
Second one, I can't find out, where I need the 24 Bearing V624ZZ or U604ZZ from robotdigg

Could you please help me?

 

Thumbs Up from another OneZ user! Lost count how many times I said it but worth saying again...Thanks Alot Keith!

 

Ah okay,

I will make some changes; so using trapezoid thread spindle (10x2) instead of threaded rod, so I'm loosing some resolution but they should be more accurate because I've got some bad experience using threaded rods.
Also due to my stock resources I will use an Arduino and Ramps 1.4 Shield. The Stepperdrivers will be digital ones from Leadshine.
A friend of mine will help me to modify the firmware, he just finished his cnc-mill.

Because of these changes, a BOM of my OneZ will not be as low as yours, but I'm really looking forward for all the parts ordered some days ago to arrive at home

The hardest part would be to modify the printed Parts. Im a bit scared, but I think it is possible.

 

I finally completed my OneZ! Thanks Keith for this design and assembly instructions. It's printing really well after tuning a bit and retightening everything. This is my first 3d printer and I learned a LOT in the process of building it. I would definitely recommend this design.

A couple challenges I experienced:
1) I sent the STL files off to an out of state friend who printed the parts and shipped them to me. The misc-parts-blk.skp file was not present in the STLs and I ended up making a few parts out of wood and zip ties until the printer was functional enough to print out the missing pieces.

2) The bill of materials does not include a good number of the fasteners. I would read ahead in the instructions and make a list of the screws needed and buy them at the hardware store (US, metric isn't well stocked always). Then as soon as I resumed building it I would find out a couple more that I had missed or weren't explicitly listed. There were many hardware store trips.

3) The extruder spring needs to be really strong (springy?). I went through a few iterations before I got one that could push with enough force to consistently grip the filament.

 

Thanks Keith! No worries about the screws, in retrospect I should have just ordered a large assortment of M3 and M5s. The power supply is actually a converted old computer ATX supply that I had lying around which is why it's not mounted. Thingiverse ftw for the spool holder , but now I definitely want it on top of the PSU. I also went with separated electronics in a kit (arduino mega, ramps board, stepper drivers, lcd), don't ask how they are mounted in the brains box. I realized belatedly that RAMPS 1.4 doesn't support 1/32nd stepping, but at 1/16th and adjusted steps / mm in the firmware everything is working properly.

 

I'm going to hang my head in shame here... my OneZi3 is still about 2/3rds of the way done.....<sigh> Yes, there were a small items missing in the BOM I had, and I got some bum parts from 3rd party suppliers (NOT Keith) but it's LIFE that has gotten in the way. I really do like this design, and I welcome the renewed interest from Keith on it.

Regards

Christian

 

I had built my whole printer that way. Everything was ghetto wood and replace by proper 3d printed parts when it was working.

 

That's awesome! And a lot of work. Props to you for getting it done that way!

Christian, life also made this build take the better part of a year. We had a new kiddo and they sure eat up all time and motivation for a while.

 

It is "Candy Red" from HH3dplastics.com: 1Kg PLA 1.75mm Candy Red - 8" Spool

They're cheap and so far their filament hasn't given me any problems. A friend who has been in the 3d printing game for a few years now swears by these guys.