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OmniStand Adjustable Filament Spool Stand

by BaronWilliams, published

OmniStand Adjustable Filament Spool Stand by BaronWilliams Jan 26, 2015
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Summary

OmniStand Filament Stand v1.36

PRINTER COMPATIBILITY

  • FlashForge Dreamer (right and left side)
  • Dremel 3D Idea Builder

The OmniStand is a quick connect adjustable filament spool stand for the FlashForge Dreamer and Dremel 3D Idea Builder printers. The OmniStand replaces the filament stand that comes with these 3D printers. The stand allows many different sizes of filament spools to be used on both the right and left sides of the printer (note: the Dremel 3D Idea Builder only has a single printer stand on the left side).

Optional non-quick connect OmniStand compatible stands are found here: http://www.thingiverse.com/thing:675309. These non-quick connect single piece stands work with the same filament rods and spacers the quick connect stands work with. However, the newer redesigned type B quick connect stands are easily replaced and have less sag than the single piece designs, making them obsolete.

FILAMENT SPOOL COMPATIBILITY

Three filament rod hole positions are optimized for 3 different filament spool size categories: up to 184x65 mm (7.24x2.55"), up to 230x65mm (9.05x2.55"), and up to 190x77 mm (7.48x3.03"). For slightly wider spools see here: http://www.thingiverse.com/thing:667473

Using the 100 mm filament spool rod the stand was tested to fit the following filament spools inside the FlashForge Dreamer and Dremel 3D Idea Builder:

  • ASAPTech TPE (0.7 kg white tested)
  • ColorFabb (0.75 kg CopperFill tested)
  • Dremel (all filament tested)
  • ESun (0.5 kg bronze tested)
  • Filamex (0.5 kg spools of ABS/PLA tested)
  • FlashForge Dreamer (all filament tested)
  • Hatchbox (1 kg and 0.45 kg spools of ABS/PLA tested)
  • Magic Cube (0.45 kg ABS tested)
  • MakerBot (0.5 lbs small spool of PLA tested)
  • MG Chemicals (0.25 kg of PLA/ABS tested)
  • NinjaFlex (0.5 kg Fire color tested)
  • Taulman (0.45 kg of T-glase tested)
  • USAFilament (0.5 kg PVA tested)
  • Zen Toolworks (1 kg wood filament tested, others might not fit)

Filament spools tested that cannot fit inside the FlashForge Dreamer or Dremel 3D Idea Builder:

  • Filament Outlet (1 kg spool of HIPS tested)
  • Gizmo Dorks (1 kg spool of HIPS tested)
  • MakerBot (2 lbs large spool of PLA tested)
  • Octave (1 kg spool tested)
  • Shaxon (1 kg spool of ABS tested)
  • USAFilament (1 kg spool tested)

Note that these filament spools do however fit the OmniStand Top Mount Filament Spool Stand for use outside the printer.

FILAMENT STAND BASE

The base of the stand mounts directly in place of the FlashForge Dreamer or Dremel 3D Idea Builder's original filament stand. It mounts to the bottom using the original filament stand holes and screws. No additional hardware is needed.

The base of the stand has a unique sturdy quick connect design, allowing different stands to be easily exchanged without unscrewing anything. This allows different stand designs to be inserted into the stand base, without the need for screws.

FILAMENT STANDS

New to version 1.34, type B quick connect stands offer greatly increased sag reduction (See version update notes below) under heavy filament load. They are recommended over the original stand when using filament heavier than 0.5 kg. The original spool stands are now found here: http://www.thingiverse.com/thing:675350

The quick connect stands have a sliding switch with two positions. The switch is designed to move easily, and snaps into either the locked, or unlocked position. When switched down, the switch locks the stand into the base. When switched up, the stand can be easily removed from the base by sliding it towards the center of the printer.

Two quick connect filament stands are included. One for the left side and one for the right side. Either stand can connect to any base.

Each quick connect stand has three rod holes to allow the filament rod to better accommodate different sized filament spools.

The bottom rod hole is specifically designed to fit FlashForge Dreamer and Dremel filament spools allowing them to go down into the filament depression at the bottom of the printer, maximizing clearance space in the printer. Other filament spools up to 184x65 mm should fit, but some spools might require an additional spacer for the spool's hole.

The middle rod hole is designed for filament spools that are thin enough to fit into the filament depression at the bottom of the printer, but too large to fit the standard FlashForge Dreamer and Dremel filament stand. Spools up to 230x65mm should fit, but some rolls might require an additional spacer for the spool's hole.

The top rod hole is designed for filament spools that are too fat to fit into the filament depression at the bottom of the printer. Spools up to 190x77 mm should fit (or 190x82.5 mm if using the maximum length rod found here: http://www.thingiverse.com/thing:667473), but some spools might require an additional spacer for the spool's hole.

FILAMENT ROD SPACERS

The filament rods are 19 mm (0.74") in diameter, and made to accommodate 20 mm (0.78") filament spool holes. Some spools will fit better if a spacer is used. This set includes 6 filament rod spacers.

  • 77x24 mm (3.03x0.94")
  • 77x29 mm (3.03x1.14")
  • 77x34 mm (3.03x1.33")
  • 77x39 mm (3.03x1.53")
  • 77x44 mm (3.03x1.73")
  • 77x49 mm (3.03x1.92")

The filament rod spacers slip over the filament rods and expand the rods to 24 mm, 29 mm, 34 mm, 39 mm, 44 mm, and 49 mm in diameter to accommodate filament spool holes over 50 mm in diameter. The 39 mm, 44 mm, and 49 mm spacers have a 5x2 mm lip on them to keep the spool in place, so they reduce the rod's spool width capacity by 2 mm. The spacers fit the recommended 100 mm long filament rod.

FILAMENT RODS

The filament rods are compatible with the FlashForge Dreamer and Dremel 3D Idea Builder filament rods. They use the same connector design, are the same diameter, but are much longer.

The set includes 1 spool rod size.

The 100 mm long rod fits on either the left or right side. It can hold spools that are 77 mm wide. It is recommended to use this rod as the standard rod. It has a good amount of clearance from the build plate. Heavy spools of filament will not cause problems with this rod.

Additional extra long rods are found here: http://www.thingiverse.com/thing:667473

SEE ALSO

OmniStand Extra Long Filament Spool Rods

OmniStand Top Mount Filament Spool Stand

Non-Quick Connect OmniStand Compatible Filament Spool Stands

OmniStand Compatible Quick Connect Filament Spool Stands

NOTES

Note that the two FlashForge Dreamer and Dremel 3D Idea Builder filament depressions on the bottom of the printer are only 66 mm wide, and should only be used for filament spools that are 65 mm wide or less. Filament spools that are wider than 65 mm should not go into the filament depression, and should therefor use the top filament spool hole.

VERSION UPDATES:

1.36 - 3/1/2015, Updated the feet of Dreamer-Spool-Stand-B to match the improved foot design of Dreamer-Spool-Stand-B-Right.

1.35 - 2/9/2015, Moved the old quick connect stands to their own location here: http://www.thingiverse.com/thing:675350. Also moved the now obsolete non-quick connect single piece stands to their own location here: http://www.thingiverse.com/thing:675309

1.34 - 2/8/2015, Added new type B quick connect stands: Dreamer-Spool-Stand-B and Dreamer-Spool-Stand-B-Right. These improved type B quick connect stands connect to the existing OmniStand quick connect base. The new stands have an extended base that has a slight downwards slope, which helps prevent the stand from bending in towards the build plate. With these type B stands printed at 70% infill using ABS plastic, I measured a 5 mm reduction in sag at the end of the 100 mm filament rod holding a 1 kg roll of filament. It's recommended to switch to using these new quick connect stands if you are using filament heavier than 0.5 kg.

1.33 - 2/7/2015, Fixed minor issues found in the mesh for the STL files Dreamer-Spool-Stand-Single-Right, and Dreamer-Spool-Stand-Single, which could cause problems for some slicers.

1.32 - 2/4/2015, Moved the extra long filament spool rods to their own Thingiverse page found here: http://www.thingiverse.com/thing:667473

1.31 - 1/31/2015, Modified 34, 39, 44, and 49 mm spacers to print with less plastic.

1.3 - 1/30/2015, Added Dreamer-Spool-Stand-Single-Right.stl, which is a single piece version of the standard 3 hole stand with the bend for installing on the the right side of the printer. In this version the stand base is part of the stand, making the stand slightly more study, with a loss of modularity of course. I also had to make the stand a little thinner to allow access for one of the screw holes.

1.2 - 1/29/2015, Added Dreamer-Spool-Stand-Single.stl, which is a single piece version of the standard 3 hole stand. In this version the stand base is part of the stand, making the stand slightly more study, with a loss of modularity of course.

1.1 - 1/27/2015, Added 100 mm filament spool rod and rod spacers.

Instructions

FILAMENT CHOICES

I printed and tested all of my parts using Filamex White ABS. Others have used PLA. For the Dremel printer, PLA should be fine. For the Dreamer with the heated build plate, ABS should probably be used.

PRINT SETTINGS

Except for the filament spool rod spacers, print all other parts at 0.10 mm layer height, no thicker, to ensure a proper fit of all parts.

The base prints without support. Print it with the large flat side down. Use 70% infill and 3 shells.

The stands require support for overhangs in back of the rod holes only. The portion where the stand lock is inserted should not be printed with support. The stand should be printed with it's long flat side down (it's back), and not standing up, otherwise the rod holes will not print correctly. Use 70% infill and 3 shells.

The filament spool rod requires support at the very top where it locks into the stand's rod holes. The rod must be printed standing upright. If printed on it's side, it will be rough, require much more support, and might not fit into the stand properly because of warpage. Use 70% infill, and 3 shells.

The stand lock switch prints without support. Print it with the large flat side down. Use at least 20% infill and 3 shells.

The filament spool rod spacers should be printed standing upright. These do not need to be strong. I recommend printing them with at least 2 shells, and around 10% infill.

INSTALLATION OF THE QUICK CONNECT STANDS

Step 1: print Dreamer-Spool-Stand-B-Right.stl for the right side of the printer and Dreamer-Spool-Stand-B.stl for the left side of the printer. Installation is the same for both stands.

Step 2: remove the bottom of the FlashForge Dreamer or Dremel 3D Idea Builder. Be aware that these printers' filament stand's nuts are located under the printer's body directly under the filament stand, and the nuts will fall off once the filament stand is unscrewed. Carefully unscrew and remove the original filament stand, being careful not to lose the nuts that come off. It's advised to do this work in a location where the nuts will not be easily lost if they fall off and bounce away. Using the original stand screws, attach the printed stand base securely in the same location the original stand was installed.

Step 3: insert the lock into the stand so that it snaps in. Once the lock snaps into the stand it will not come back out. The lock works as a switch with 2 positions: locked, and unlocked. When in the unlocked position, the switch's end is completely inside the stand. When in the locked position, the switch's end extends down below the stand's bottom.

Step 4: switch the stand's lock into the unlock position and slide the stand into the stand base.

Step 5: switch the stand's lock into the lock position by sliding the switch down into the stand base. The stand is now securely attached to the stand base and will not come out as long as the switch is in the locked position.

Step 6: insert the rod into your chosen filament spool, and attach the rod to the filament stand. Insert the rod with the handle level to the bottom of the printer. To lock the rod in the stand, turn the rod counter clockwise so that the handle is perpendicular to the bottom of the Dreamer.

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Does anyone know if the right Dreamer-Spool-Stand-B-Right fit to the Dremel Idea Builder? More precisely the existing screws long enough to fit into? I want to make a right spool stand to store a second filament spool and easy switch between two filaments. for that purpose it would be nice to have filament guides like here http://www.thingiverse.com/thing:667620 for the right side of Dremel Idea Builder.

FlashForge Dreamer Short Fan Filament Guide Clip

I think spool is still to wide

The new big-hole Hatchbox filament has an an omni-stand adapter here http://www.thingiverse.com/thing:1462607

Hatchbox Spool Adaptor - New Hole Size

can you make one of these adapters for the inland

I have a micro center near me which supplies inland filament 1.75 mm. Spool dimensions are
Diameter: 7 7/8" Width: 2 5/8" Hub hole Diameter: 2 1/8"
Will this work with it?

Thanks for this design. It makes the Dremel so much nicer to use. For the record, I just got a 1 kg spool of Gizmo Dorks dark brown PLA and it fits inside the Dremel with no problem. It's very similar in size to the 1 kg Hatchbox spools. I slightly modified the Hatchbox spool adapter that someone posted, since the hole in the Gizmodorks spool is maybe 1 or 2 mm bigger. The spool seemed to print fine just resting on the arm without any adapter, though.

Amazing design.! It works perfect, but.!! Would you be so kind and make the same right arm design (the one that goes under the Y motor) for the left side.! I found that this design actually helps a lot for the filament to flow better.

Mar 22, 2016 - Modified Mar 22, 2016
catteni - in reply to sotakuma

could you not simply mirror the item? in simplify 3d just select mesh then mirror y axis

Just printed most of this on a Dremel and it's been coming out fantastic. Very solid pieces. The base and the stand are quite tight, but nothing a little sandpaper and exacto knife cannot fix.

Small problem for me. I'm using the Dremel printer, and this Hatchbox filament (3D PLA-1KG1.75-BLK): http://www.amazon.com/gp/product/B00J0ECR5I?psc=1&redirect=true&ref_=oh_aui_detailpage_o01_s00

The biggest spacer is 49mm and it fits completely through the center without stopping the spool from coming off. It fits in the dish at the bottom of the printer cabinet, so I suppose that would stop it from coming out first, but that seems like a problem waiting to happen. I made the exterior rim 60mm on the 49mm spacer and will test that. The center of the spool is 55mm throughout.

The rod could use some tiny break-away supports built into it at the top because they overhang freely. The Dremel would not print it without a good amount of the material sagging down. Easy to fix after with a file, but small supports would be nice.

Other than that, the fit and finish of the parts is amazingly snug. The lock tab for the base works great. Very nice design.

Excellent design! Finally my 1kg spools fit into the Idea Builder.

I've printed this stand (great design!), but I'm a little unsure which spool spacer I need. Is the spool supposed to be snug to the spacer? This is my first non-Dremel PLA purchase, so I'm not sure what to expect. I just bought a 1kg spool of Hatchbox PLA, and the inner hole diameter is about 55mm (entire spool is about 200x65mm). Is that going to work with this stand? Any advice on which spacer I should use?

I've received confirmation from Hatchbox that they have increased their spool hub sizes from a 1.25" hole to 2". So I'm wondering if you still consider that compatible. I'd be happy to test and provide feedback, I just want a little guidance on which spacer I should try with that size hole.

here is a new adapter I made to solve this problem - http://www.thingiverse.com/thing:1462607

Hatchbox Spool Adaptor - New Hole Size
This comment has been deleted.

Really great!
Before I found this stand I never thought my large spools could fit inside my FF Dreamer. But they obviously do. :-)
If you need some more data for the thing details: I have used 1000g 3DPrima and 750g Innofill spools. Both fit perfectly!

Absolutely brilliant. Just a wonderful job you've done here. This has changed the way I use my Dremel and I now recommend this stand to everyone. THANK YOU!

Just adding the STL files to slicer and i have the Dreamer-Spool-Stand-B-Right but where is the left or do i use a different one for the left? or Same one for the left but then the 45deg angle would be angled towards the front of the printer and when installed on the right the 45deg angles towards the back?

Help asap would be great thank you just waiting on an answer before i print :-)

mirror the mesh on the y axis

Love this stand! I printed one for both sides as well as 2 for the top of the printer when printing with larger rolls.

Lately i found myself always printing a new spool adapter everytime i get a new roll which has been a waste of time so i made this:

http://www.thingiverse.com/thing:1141403

which works for spools between 44mm - 62mm in diameter. It fits perfectly with the omnistand and doesnt reduce the spool size width as it is countersunk to fit the omnistand rods. Let me know if you guys like it i can maybe make another one for smaller spools so that you wouldnt need to print an adapter for every spool out there.

Spool Adapter - 44mm - 62mm

Brilliant design! I didn't purchase the Dreamer (went with the creator pro) because of the spool limitations. Your idea fixes that limitation!.

This comment has been deleted.
This comment has been deleted.
Apr 23, 2015 - Modified Apr 23, 2015

Hey, just took the remix from Xerxes3rd and added a wire guide for the right side to keep the x-axis motor wire in check. Take a look! :) Adding a little love for Hatchbox filament and some wire management... http://www.thingiverse.com/thing:786595

OmniStand Short with wire guide
by Narg

BaronWilliams, we printed for our Flashforge Dreamer. The design is great, although with a 1kg roll of Hatchbox 1.75mm ABS, the roll does hit the stepper motor (although it misses the build plate). This doesn't seem to impede rotation at all, as the machine is happily printing away. Thanks for your work on this!

Apr 23, 2015 - Modified Apr 23, 2015
Narg - in reply to Xerxes3rd

check out my remix for the right side based on yours :) Thanks again for starting this "Hatchbox" project!!

Awesome, nice job! If I get any wire binding on my unit, I'll definitely print it! We're big fans of Hatchbox filament too. =)

Thank you, this is a fantastic addition to my Dreamer, opened up so many options for colors for me.

Very nice work! These should be standard with the Flashforge Dreamer, thanks for devoting your time to this!

they don't want you to use anyone else's filament that's why they aren't standard... otherwise they would just support 1KG rolls

I love the way this printed out, extremely clean and well designed. I have a question though...when using ESun spools, did the bottom-inside part of the spool scrape against the bracket?

I am using the 77x49 mm rod spacer when using my 0.5 kg bronze eSUN filament. That's the only eSUN filament I currently have. The spool doesn't scrape anything. It rolls smoothly.

Are you using their 1 kg eSUN spools? I haven't tried them yet and I don't know what their dimensions are. If that's what you're using, do you know the width and height of the spool as well as the size of the spool hub?

Also, I'm not sure I understand what you mean by "bracket". Do you mean the feet on the stands?

Yes, I'm using the 1K spools (its all I use). The spools measure 68.75mm wide X 199.230mm Dia X 52.40mm hub. Sorry, and yes I mean the feet.

This is very great. Fits my FFD updated model, very well. Removing the old spool holder results in the nuts under the chassis to fall into the electronics. That is easily fixed by removing the base plate and grabbing the nuts as they come off. Apart from that small point for awareness - Baron you have done a great job! Thank you. This is a very helpful mod indeed. I am just running a test on my side panel adjustments so that they hold tools - will post shortly.

I'm glad to see it's useful to others.

If for any reason the nuts get lost, they are standard M3 X 0.5mm pitch nuts. The FlashForge Dreamer uses these nuts for a lot of it's parts. Most hardware stores carry them. Just in case I lost one myself, I purchased a bunch from here, which are identical in size to the ones my Dreamer uses: http://www.amazon.com/gp/product/B00B3RJ7FI

Feb 13, 2015 - Modified Feb 13, 2015

Hi there,
I would like to do a video of your design and how it prints and fits. Can I have permission? I will accredit you, the design and the relevant links
Thank You!

Feb 14, 2015 - Modified Feb 14, 2015
BaronWilliams - in reply to makerground

Yes, you have permission. This model is put on here for everyone to do what they like with it.

Any of my models on Thingiverse that have the "Creative Commons - Attribution - Share Alike" license can be used in videos without asking me.

I moved the original old quick connect stands to their own location here: http://www.thingiverse.com/thing:675350. I also moved the now obsolete non-quick connect single piece stands to their own location here: http://www.thingiverse.com/thing:675309

OmniStand Compatible Quick Connect Filament Spool Stands
Non-Quick Connect OmniStand Compatible Filament Spool Stands
Feb 9, 2015 - Modified Feb 9, 2015

Today, I improved the set by adding new type B quick connect stands: Dreamer-Spool-Stand-B and Dreamer-Spool-Stand-B-Right. These improved type B quick connect stands connect directly to the old OmniStand quick connect base without the need for any tools. The new stands have an extended base that has a very slight downwards slope, which helps prevent the stand from bending in towards the build plate. This new design also helps stabilize the quick connect joint, by reducing joint play. With these stands printed at 70% infill using ABS plastic, I measured a 5 mm reduction in sag at the end of the 100 mm filament rod holding a 1 kg roll of filament.

This is a solid improvement over the previous stand design, which had considerable sag when using filament heavier than 0.5 kg.

It is highly recommended that you switch to using these new quick connect stands if you are using filament heavier than 0.5 kg.

My tests show that these new type B stands, in conjunction with the old quick connect base, actually sag less than the single piece stand in this set.

The 100 mm filament spool rod in this set has good clearance. I have been using it exclusively without any issues for dozens of prints. The potentially problematic 103 and 105.5 mm rods that were previously part of this set have been removed from this set and are now in their own location on Thingiverse found here: http://www.thingiverse.com/thing:667473

OmniStand Extra Long Filament Spool Rods

made one for dremel3d printer. A few notes:

1) when installing, small nuts fall off inside base of printer. be prepared to remove base plate, don't do while unit is plugged in, and be prepared to move around cable harness to screw in

2) minimal supports are necessary to get a clean print of the spool holder shaft

3) cannot mount USAFilament 1kg spools, they're too wide.

Thanks for the information. I wasn't sure if this would fit the Dremel 3D Idea Builder so I didn't want to mention it. I know the Dremel is based on the FlashForge Dreamer. It's good to know that these also fit the Dremel 3D Idea Builder. It will be useful for a lot of people. I will update the description to show that it also works in the Dremel 3D Idea Builder.

Your notes about the nuts also apply to the FlashForge Dreamer. I'll add that to the instructions. Those nuts are easy to lose.

Do you think there might be a way to get the USAFilament 1kg spool to fit by doing some modifications to stand?

The USAFilament 1kg spools are wide -- 85mm. with a diameter of about 165mm.

The longest post was very close to the table and sagged under the weight of a hatchbox 1kg
filament spool and got jammed by the table. I would suggest withdrawing that long spool shaft
and instead doing the following:

It looks to me as if the vertical piece could be moved even further toward the case of the printer,
if a 3mm rebate is made in the bottom of the "stand base" where it would overlap the side wall
shell of the machine.

Brandenberger, will the 1 kg HatchBox spool work using the 100 mm spool rod I added recently or is it too wide? The 0.5 kg HatchBox spool fits the 100 mm spool rod, but I assume it's thinner.

When printing with a 0.75 kg spool of ColorFabb CopperFill on my right side, the weight of it caused my stand to bend enough to make the 103 mm spool rod touch the build plate (my right side has slightly less space than my left side). I have not had this problem at all with any 0.5 kg spools. I added a 100 mm spool rod specifically to address this problem. I am considering removing the 103 and 105.5 mm rods from the set, but the Magic Cube 1 pound ABS spools I have need the 103 mm rod or they won't fit. The spool is light and doesn't bend the stand, so the bending isn't a problem. While the 103 and 105.5 mm rods work great with lighter spools like the Magic Cube 1 pound ABS spools, they can be a problem with heavier spools.

I printed my own stands with Filamex white ABS, which is fairly flexible ABS. Most ABS is going to flex a little. Increasing infill will help prevent the flex, but only to a certain level.

I will look at the possibility of moving the "stand base" closer to the side walls as you suggested.

I made the longest spool rod (105.5mm) and it's still too short... when mounted that gives about 83mm of space for the spool, but the USAFilament spool is 85mm and we'd need several mm of play for rotation.

I think as nice as it is, the modular design (at least when printed with PLA) increases the flex of the design and thus the tendency to deflect under a 1kg spool. A one-piece post could be less deep and thus have even more room for wider spools.

Jan 30, 2015 - Modified Feb 1, 2015

Brandenberger, I do have single piece versions of the stands where the stand and stand base are 1 solid object. I added them to this set. They are STL files Dreamer-Spool-Stand-Single.stl and Dreamer-Spool-Stand-Single-Right.stl (this one is specifically made for the right side).

You can try out the single piece design and see the difference for yourself. Maybe with your PLA and your settings you might see more improvement than I ever saw with the 1 piece design. I only see a very slight difference on my prints. For me it's not worth losing the modular design. For me the single piece stand unfortunately flexes about the same amount, maybe 1 mm less. The joint on the stand base surprisingly isn't the source of most of the flex I'm seeing in my print I did with Filamex ABS filament. My print is mostly bending in the same place as my 1 piece design was: evenly all along the upright portion of the stand, and to a good degree, the printer's floor itself is flexing!

The original stand that ships with the printer, which is also a 1 piece stand, bends in the same way with enough weight on it. Because there's support at one end of the filament spool rod and not the other, flexing is still going to be an issue despite it being just 1 piece and made of plastic or even solid steel (because the printer floor itself flexes).

In the modular design, If the joint has a lot of play, then that makes the flex worse of course. But on my own print, there's virtually no play in the joint. It's actually quite hard to slide the pieces together. It's a good solid joint. But how much play there is in the joints will depend on the filament used and the slicer settings used. With the wrong slicer settings for a specific filament, play in the joint can increase a lot.

Note that if you put downward pressure on the plastic floor of your printer near the filament depression, next to the stand, but not touching the stand, that alone will flex and bend your filament spool down. Even if the filament stand was made of steel, the bottom plastic of the printer flexes enough to cause the filament rod to move a few mm if the filament is heavy. This is actually a pretty big cause of the flex I'm seeing, and this can't be easily solved. The printer's floor on the FlashForge Dreamer and Dremel has no center support. The floor is supported on 4 sides only, and the filament depressions allow the floor to flex even more than it would normally flex.

With the current design, the solution is to ensure that the filament spool rod has enough space to flex to it's maximum under heavy loads while not touching the build plate. The 100 mm filament spool rod seems to be just right. On my printer, anything at 0.5 kg or below can use the 103 mm filament spool rod on the left or right side. But a 1 kg spool on the right side cannot use the 103 mm filament spool rod, and must use the 100 mm filament spool rod. I have less room on my right side for some reason. Other printers might differ. This is one problem in making spool rods longer than the original manufacturer's rod.

As a modification for improvement, somehow moving the base of the stand closer to the printer's wall, which was your suggestion, is probably the best solution to getting both wide spools to fit and avoiding the rod touching the build plate. I'm looking at this and will try to come up with a solution. One problem with this approach is that the closer to the wall the upright part of the stand is, the further it's center is from the stand screw holes, so it's going to be less sturdy, flex more, etc. It might be prone to breaking under load. I'll have to do some tests and see how I can move it closer to the wall without making it too weak. If only I could print metal parts! I could always make the plastic parts thicker, but then that will decrease the space available for the filament spools.

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