Glass Bed Clamps on Tinkercad

In this episode we will look at building a set of hold down clamps for the QU-BD TwoUp 3D DIY Printer kit.  As you might recall we where having issues with the melamine bed so we switch to glass however the shaking of the when doing in-fills was ruining the prints so we designed a set of clamps to hold the glass in place firmly.  The glass bed is 11.5 inches long and 7 inches wide.  We left a little room length wise as we want to add thumb screws to the bed for leveling in the future.  In addition, the glass is +/- 0.16 inches in thickness and the clamps are 4 inches wide.

 

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TwoUp 3D Printer Flashing the Mega 2560 with Marlin

In this episode we will cover flashing the Ardunio Mega 2560 with RAMPS 1.4 drivers using the Marlin software for the QU-BD 3D DIY printer kit.

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TwoUp Z Axis Issues Fixed!

In this episode we will look at issues with the Z Axis on the QU-BD TwoUp! 3D DIY 3D printer kit and how ended up fixing it by editing the Marlin Configuration.h file and updating the revolutions for Z Axis.

 

The original line in the Configuration.h file was:

#define DEFAULT_AXIS_STEPS_PER_UNIT {88.88888888889,88.88888888889,1511.811023622047,88.57326053533955} //QU-BD_Ups // default steps per unit for Ultimaker

 

Whereas the updated line now reads:

#define DEFAULT_AXIS_STEPS_PER_UNIT   {88.88888888889,88.88888888889,1759.96626731320954,88.57326053533955} //QU-BD_Ups // default steps per unit for Ultimaker

 

So what we did was change the default 1511.811023622047 to 1759.96626731320954 in order to make the change.  As the math we used to come up with this number was:

 

(1511.811023622047steps / 8.59mm) = 175.996626731321 x 10mm = 1759.96626731321steps

The logic (which admittedly there is better) was when sending a 10mm movement to the Z Axis, it would move only 8.59mm so dividing then multiplying produced the new step count number.  Now this number is not “perfect” it is close because there is error in the 8.59mm because of gantry sag produced a significant variance.  However this is now at least workable.  I will be working to refine this however frankly with the flashing issue of the Mega 2560 and RAMPS 1.4 controller (see more here) I just wanted to see if it work which it did.

 

 

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Bed Leveling TwoUp 3D Printer With A Dial Indicator

In this episode we’re going to take a look at  bed leveling for the two up printer using a dial indicator.  A level bed is one of the key aspects in any 3-D print workflow as having a level that this is crucial for high-quality prints.   to achieve this we are going to use a 3-D printed bracket along with a digital dial indicator this will lowers a high precision measurement of the print bed.

iGaging Digital Electronic Indicator

by iGaging [iGaging]
Rank/Rating: 10515/-
Price: $29.95

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3D Printed Feet for Maker Rail Systems


In this project we created a set of feet for use with the maker rail system and also with two 0.25 inch holes in the feet for mounting to a surface.  The feet are attached to the maker rail via 0.5 inch long #10 screw with the #10 nut inserted into the “V” of the rail.  These are a great addition to any maker rail project!

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Dial Indicator Bed Leveler for QU-BD TwoUp 3D Printer

Recently we designed a dial indicator holder for the QU-BD TwoUp! 3D to help with bed alignment and improved prints.  We printed this in ABS (you could also print in PLA) with thick shells, 30% infill with supports.  This mount is designed to hold a standard dial indicator such as VkTech which can be purchased from Amazon for around 10 bucks or so…

 

Vktech Dial Indicator Gauge 0-10mm Meter Precise 0.01Resolution Concentricity Test

by Vktech [Vktech]
Rank/Rating: 123452/-
Price: $10.99

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Working with Maker Rail Part 2 Endcaps

In this video we look at tapping the ends of the maker rail and attaching endcaps printed from Thingiverse.  To do this we will use #10-32 tap with a WD-40 to cut the threads.  Note the aluminium of the maker rail is rather soft and can gum up the tap so you may need to run in and out several times clean on each pass.

Klein Tools 626-24 Replacement Tap

by Klein Tools [Klein - Geneva Supply]
Rank/Rating: 213050/-
Price: $8.99

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