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Still have a bunch of parts available. I also posted some things on ebay. You can check them out here:
by
gmh39
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For Sale
I built one a few months ago. It worked but I personally prefer belts. the cost savings isn't really worth the hassle.
by
gmh39
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CoreXY Machines
BUY ALL 4040 parts (extrusions, corner brackets, gussets, t joints, and hardware) FOR 180!
Here's some more stuff I'm selling:
4040 Aluminum extrusion. 16 pieces, each 26" long. They are in used condition. Comes with a bag of M8 nuts and bolts.
One piece has a cut repaired with JB weld, it is still fully usable and works great. $100
Aluminum corner bracket. Made for 4040 extrus
by
gmh39
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For Sale
I think it is the ability to use a larger nozzle with 3mm that makes it ideal for larger prints. 1.75 you can only go up to like 1mm MAX, I think. 3mm can definitely go larger than that.
The larger the nozzle size, the more plastic you can lay down, the faster you can print.
While, yes, a thinner filament will technically melt faster than a thicker one, I'd bet the difference is negligible.
by
gmh39
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General
Yea I'd definitely recommend the smartrap. Easy to build and hack.
by
gmh39
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General
ok, here is part 2 of my studio clean out. Buy covers shipping and paypal fees.
RAPMAN Acrylic parts - $15
Misumi 1515 aluminum extrusion lengths are listed below - $60
-10x 45 degree braces
-1x 420mm
-2x 387mm
-14x 398mm
-2x 340mm
-1x 183mm
-1x 130mm
-1x 87mm
-4x 497mm
-4x 578mm
-1x 631mm
-2x 657mm
NEMA 23 motor with cables - $12
600mm linear rails - $100
600mm TR8 8mm lead screw with
by
gmh39
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For Sale
It's not a complete printer but I've got an 80% complete CoreXY printer for sale.
by
gmh39
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Wanted
Quotegmh39
So I decided to clean out my workshop and have a ton of parts and things I am looking to sell. ALL PRICES ARE OR BEST OFFER. So feel free to shoot me a reasonable offer. The more you bundle, the more you'll save!
Ok let's get to is:
Structure Parts:
1. Brand New 2020 Misumi extrusion kit. Silver color. - sold
2. Bitumen tape. Works great for dampening vibrations and insulati
by
gmh39
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For Sale
Updated with sold items.
by
gmh39
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For Sale
So I decided to clean out my workshop and have a ton of parts and things I am looking to sell. ALL PRICES ARE OR BEST OFFER. So feel free to shoot me a reasonable offer. The more you bundle, the more you'll save!
Ok let's get to is:
Structure Parts:
1. Brand New 2020 Misumi extrusion kit. Silver color. - sold
2. Bitumen tape. Works great for dampening vibrations and insulating. - $5 -
by
gmh39
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For Sale
I assume you've seen these?
Would this limited run be sold as an actual product, or just used for consumer testing?
Also, it might be easier to build a CNC machine to make your own molds and a DIY injection molding machine to inject with than try to use an FDM mold.
by
gmh39
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Developers
As I said in the other thread, awesome job! It looks great. Do you have progress pictures? Would you be able to get a new video without the buzzing? I'd be interested in hearing it when everything is all tightened up.
Side note, it looks like the tables are square. I checked the Ikea website (US) and it looks like all they have are rectangular tables. Shouldnt be a problem, just an observa
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gmh39
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Developers
There are a number of sellers that are based in Asia. I think Blomker is based in Malaysia.
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gmh39
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Extruded Aluminum Frames
Any core XY build should work. All you need is a pen holder.
by
gmh39
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CoreXY Machines
Love the design! Can you still use it as a table top? If you can, that would be PERFECT for my tiny apartment!
by
gmh39
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Developers
Unless you balance the forces on the z-axis lead screws, you will probably see bending an distortion when moving in the Y direction.
Honestly, this does no seem simpler than just moving the bed in the Z axis. You are still going need a hefty Z axis so you arent really getting rid of anything.
Also, why do you need an 8 ft^3 build volume?
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gmh39
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Developers
Im using a mig welding wheel on my large format printer I am building. Can't really comment on feeding for cause I need tensioning springs, but it looks promising.
by
gmh39
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Reprappers
It's kinda pointless. If you want reliability, you need a stiff frame. Printed extrusion parts will not get you near the stiff required. Plus, depending on the size of your printer, extrusions are not that expensive.
by
gmh39
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General
Your motors aren't necessarily designated X and Y because if only 1 motor turns, the carriage should move diagonally. What you need to do is jog the carriage and make sure it moves in the appropriate direction. If it doesn't, you can try flipping one stepper connection in either the firmware or on the board. You might have to test a few configurations out to get it right.
For disabling the t
by
gmh39
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CoreXY Machines
What's the problem with adding a few extra perimeters for the whole part? I do realize it would use more filament and take more time, but the part would be overall stronger and you would be able to reliably tap the hole.
by
gmh39
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General
Why do you need 3 lifting screws?
I'm making a large format printer that has build area ~2x as big and am only using 2. Plus the connecting set of bevel gears on the shaft for the 3rd motor will add backlash that the other two motors wont have, thus making it not level. I'd say, if you want to use 3 lift screws, use 3 motors.
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gmh39
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CoreXY Machines
Could be carbon fiber.
by
gmh39
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General
If ypure going to go the wheel and extrusion route, deltaprintr sells wheels for Misumi 1515 extrusion. Probably more reliable than v slot since it doesn't ride on a sharp edge.
by
gmh39
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Developers
Digging the color scheme.
What the build area to footprint ratio?
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gmh39
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CoreXY Machines
Gotcha. I think I'll pick some up once I get my large scale printer up and running. Should help tremendously with keeping the bed weight down.
by
gmh39
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Mechanics
If you bury the nozzle tip wouldn't that either rip up the foam or clog the nozzle? Or both?
by
gmh39
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Mechanics
