600x600x890 HD12 build

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DLrocket89
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600x600x890 HD12 build

Post by DLrocket89 »

Hi everyone,

Starting the prints for a new build. I'll be using it to print, amongst other things, large model rocket parts, which is what's driving the 600x600 requirement. The 890 is the height that you get with 1 meter long rails.

I'm going to extend the electronics bay part maybe 30cm or so. The electronics will go in the bottom half and a hotbox to keep the filament dry will be the top half...basically building a PrintDry into it.

It's going to be floor standing, debating putting some large 12V batteries in the bottom for a backup supply.

The other thing I'm going to do is build this thing as a 600x600, but the bed will only be 400x400. This is to reduce heated bed current requirements reduce the cost in the bed itself and the heaters, etc etc etc.

Won't be buying most of the parts till next March, so for now I'm printing and planning.

lede
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Re: 600x600x890 HD12 build

Post by lede »

Welcome aboard! This is a great project and a lot of fun to build with lots of decisions to make as you build. It does sound like you have a few great ideas so I can't wait to see how they get implemented. When you can share the different specs for like the printer bed version, hot end planned to use, print head design (going with a ExtrdeOrt, custom design, etc..).

Start looking for sources for your materials. It took me a lot of time to figure out where I could source some of the parts. It won't be like you can just run down to the local hardware store and pickup parts you need. Anyways good luck and have fun!

DLrocket89
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Re: 600x600x890 HD12 build

Post by DLrocket89 »

Thanks!

I've been looking at pricing for stuff for quite awhile now. Thinking I'm going to get 3030 from 8020.net, but I read somewhere on here that their 2020 isn't the right size...or something. Gotta look into that further.

Hitting on various things -

Keenovo heater
Bondtech + Slice Mosquito (maybe the Magnum?) - I have this on my CR-10 on a custom mount that I designed and printed and I LOVE it
Berd air ring (again, that's what's on my CR-10)
Likely an SKR Octopus board - I have a 1.3Turbo on my CR-10 and love it and Marlin. Also possibly using Klipper...haven't gotten that far on the CR-10 yet. That might be a future upgrade path.
Likely some low-grade form of chamber heating, nothing terribly hot, but this printer is going to live in a damp basement, so heating to keep things dry is good.

Invader_Zoom
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Re: 600x600x890 HD12 build

Post by Invader_Zoom »

As the owner of a 600+mm Hevort I have a couple notes:
-I'm using the HD9 with a 2020 gantry with a E3D Hemera/Volcano and I get visible ringing at 50-60mm/s print speed. I am hopeful that input shaping and a lighter extruder/hotend combo will help but I'm planning increased gantry stiffness also. So keep your payload mass and speed expectations in mind.
....ZYL Tech out of Texas sells 2020 extrusion that was compatible with all my Chinese/amazon fasteners at reasonable rates...they should be much less than 8020 or McMaster Carr.

-Voltage: You mention 12V...I would advise 24V for DC as the cost difference is negligible and gives a higher power ceiling for your motion system. I'm using a 28"x28" x3/8" aluminum tool plate as my bed with a 1300W Keenvo heater and I was fortunate to have 240V AC to power such a large heater....consider that with a 350-400W power supply and a 1000+W bed heater you are over 10A at 120V AC power...meaning you may want to look at a dedicated circuit from your breaker panel.

-Ball Screws- With such long ball screws I would focus on quality here. I'm battling minor issues with either inconsistent ball screws or lost steps due to the weight of my bed assembly....but it's usually less than 0.1mm over the course of a print. Despite my Z being much shorter ~350mm.

Others will suggest that you shouldn't build a Core XY this large but my experience has shown that so long as you take the time to build the frame squarely it is possible and not problematic using the HevORT designs!

DLrocket89
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Re: 600x600x890 HD12 build

Post by DLrocket89 »

Cool, thanks for the feedback!

I'm planning on doing a gantry with the carbon fiber tube to shave weight. I'm not particularly worried about speed though - in terms of the "quality/speed/size, pick 2 of 3" discussion, the one I leave out of that is speed.

I'm planning on a 24V system - I was talking about using 12V lead/acid batteries as backups, would daisy chain 2 together for 24V. I live in a rental so I can't run my own breaker for this. I'm planning on a 400x400 bed, so likely a 350x350 bed heater - believe that's 400W or so. Manageable.

Good comments about ballscrews. Any sources you can recommend for 1000mm ballscrews of good quality?

giel8axis
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Re: 600x600x890 HD12 build

Post by giel8axis »

i am having delta 400 watt servo's now in my setup, counter weights in the xy gantrys to overcome vibrations,motors are nema 24 size, a 9mm belt can handle the peak torque of 5nm no problem costs are bigger than closed loop steppers but doable.. total 600 euro including driver,havr the brake versions.. no cf needed since i have a abundance of power all rails are mgh 20 no frame used in the x and y rails only on the back and front a 4545 800mm frame rail and a 100mm piece of rail to mount the 20mm rail on rest of the frame is 8080mm ( was a cheap deal so went for it 15meters of frame for 80€ ) only thing is that i needed to make custom brackets but hey can't beat that.. 2020 rails are from almotion.nl also very doable and bulletproof!! you can put 2000n on them so a 3d prinhead or in my case a mill is no real load.. having the biggest nema 17s on a 2-1 reduction beqause my buildplate 600x600mm weighs 18kg made of a steel base with 2 fermacell plates ( heatproof sheetrock) and the heating of a mini space heater..pulled apart.. and put the heater into the hotbed..costs 10€.. tota lnon expensive parts was 1500 euro including mainboard motors and 2x 800watt 12 v series connected server psu with capacitor bank to smooth out peaks 10€ a pop stainless lineair Rail and sliders for z axis acme leads crews i use 10x8 4 star 1200mm on igus nuts 4 times gravity creates no backlash and a wiper motor transmission with nema 23 closed loop from mks mainboard btt gtr m5 combo instead of rbpi use a zotac mini pc running linux and klipper/ marlin forked from dei andere heating printhead 4 times a 40watt heater into a brass hotend connected to a aluminium bgt extruder clone. my philosophy was weight vs power power is cheaper to do than extreme weight ( in my vision at big printers flimsyness mine is 600x600 print area with a separate 350x500 milling/laser table so gantry is 1200 x 800mm linear rails.. questions just email me gb_beter@hotmail.com.. regards

Jhonno
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Re: 600x600x890 HD12 build

Post by Jhonno »

Ooo... Another big one! Look forward to seeing it! Sounds like it will be an interesting spec..

DLrocket89
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Re: 600x600x890 HD12 build

Post by DLrocket89 »

Anyone have a good source for 1M long ballscrews that don't suck? Sourcing from USA.

RedFlash
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Re: 600x600x890 HD12 build

Post by RedFlash »

Take a look at Misumi. I heard you can buy there in US as private person.

DLrocket89
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Re: 600x600x890 HD12 build

Post by DLrocket89 »

Misumi's website wasn't the most helpful...will try again later when I'm not at work, lol.

Anyone tried Zyltech's ballscrews? Would this be right? https://www.zyltech.com/zyltech-12mm-12 ... mm-1000mm/

Seems like a reasonable price. Looks machined for BK/BF, but I can even select without it.

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