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H Configured 3D Printer

by librav, published

H Configured 3D Printer by librav Jan 2, 2013

Description

OK! .......I was so very impressed by the initial design that ckaos initiated with his thingiverse.com/thing:27202 , that I decided to take it to the next level. I utilized some of his parts except for the X-Carraige , which I increased in height to provide better support for the my Bowden Hot End.

I used Stock Drive Products (http://sdp-si.com) largest G2 belt which is 87.323 inches (2218 mm) long (P/N A 6R51MB09060) as well as their 10mm Self Lubricating Acetal Bearings for the 10mm Z-Axis (P/N A 7Z44MPSD10MAF), as well as a Z-axis LM10LUU version bearing holder. Use whichever you prefer.

I used thingiverse.com/thing:20850 Taylors Gregs Wades MK6 filament feed for Ultimaker, by Taylor Alexander, and designed a Bowden feed mounting bracket (short and long) to accept the filament feed system. With my Filament feeder (3mm), I was trying to utilize Wired1's thingiverse.com/thing:31322 dove tailed design in my Hot end slide.This will require additional effort since my fit did not work out as anticipated.

I was shooting for a build volumn of 10"x10"x10" (394 mm x 394 mm x 394 mm). The belt length was a limiting criteria. I'll spend more time on this issue at a later time. I wanted to get a prototype platform working at this time. I'll post the Alibre files for those of you that may be using Alibre as your 3D modeling software and choose to modify my work as well as a .dxf assembly layout drawing.
Being that this is my first thingiverse publication, I kindly ask your forgivness for any mistakes I may have made. I will work toward making future postings more professional.

Recent Comments

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Not much activity on this project until school ends. I choose the H configuration because it requires less belting but I am taking a second look at Core XY.

So do you detect any skewing of the gantry during movement? I suggest actually printing objects because then any tiny irregularities in the motion will show up.

Also, what made you choose the H-bot as opposed to CoreXY belt layouts?

yes thanks for the information.

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destroyer2012 on May 31, 2013 said:

So do you detect any skewing of the gantry during movement? I suggest actually printing objects because then any tiny irregularities in the motion will show up.

Also, what made you choose the H-bot as opposed to CoreXY belt layouts?

librav on Jun 1, 2013 said:

Not much activity on this project until school ends. I choose the H configuration because it requires less belting but I am taking a second look at Core XY.

EddiMaevski on May 12, 2013 said:

Can you provide more info on the hot end, maybe post the design files ?

librav on May 20, 2013 said:

Sorry for the delay! I use the J-Head MK-IV or V. Is that what you needed Ed?

honestbob on Apr 17, 2013 said:

Can you add the X-axis rail mounts to the download, please

librav on Apr 17, 2013 said:

I used the X-axis mounts initially published by ckoas at thingiverse.com/thing:27202. If that is not what you meant, explain further. Thanks

karandex on Apr 13, 2013 said:

any videos or photos of output prints

librav on Apr 14, 2013 said:

Sorry, I've just been 'air printing' so far. I'm working on belt termination and tension control.

nexus7fan on Mar 26, 2013 said:

Hi, thank you for sharing this nice design. I am trying to build it. Could you please explain what did you use to mount z-motor and lead screw? The parts seem different from printed parts. Thanks in advance

librav on Mar 26, 2013 said:

I had some aluminum bar 1/4" x 2.0" which I cut into two pieces 2.5" long. I mounted the stepper motor to the top plate, and on the bottom, I bored a hole out to house a 10x22x6 bearing. I sandwiched the plate and bearing with a Misumi thrust washer (JZW10) and shaft collar (SCSJ10-6) on each side of the bearing plate. This fixes the lead screw shaft to chassis to eliminate any z-axis motion. I added three photos of the above. Should be getting back to the build shortly. Incidentally, before I started in 3D printing, I built a CNC machine which allows me to fabricate in various material medias.

librav on Jan 29, 2013 said:

Sorry All, Sort of stepped aside from the build due to Holiday obligations and a couple of school science projects for a couple of neighbor children. Should be getting back into it some time in February.

Anonymous on Jan 29, 2013 said:

Any update on your build of materials?

destroyer2012 on Jan 21, 2013 said:

This is very cool. I especially like your tiny hot end! Makes my ultimaker's hot end look huge by comparison. I still have the same question as I had with ckaos' design: How badly does the cross bar skew out of square when you make fast motions? Have you considered turning the X-bars horizontally and using three linear bearings (two on one side, one on the other) for this reason?

Gulf on Jan 8, 2013 said:

That is a excellent printer you have engineered. Thank you for sharing it. Do you know when you will print with it, some videos would be awesome. Do you have any estimates of the travel speed in the X-Y plane?

SystemsGuy on Jan 3, 2013 said:

Looks very nice, I got excited about ckaos and CoreXY in general, but never got beyond building the upper gantry.

Jinja on Jan 3, 2013 said:

Solidoodle printers use the H configuration if you're looking to buy instead of build. They're cheap too.

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