K8200 e3d, gt2 & trapezoidal upgrades

K8200 3D Printer K8200 - Your printer, creations, and ideas for imp
1

Hi guys,
Had the k8200 for about 2 years now and have always browsed this forum so finally I have an account. Hello! :slight_smile:
I’ve made a few tweaks to mine. Z-axis motor holder, z-axis “free” nut holder, glass bed, flex coupler

Ive just fitted the e3d today. Wiring it up tomorrow. Looks so much cleaner and nicer :slight_smile:
I am also fitting gt2 belts and also a TR10x2 trapezoidal thread for the z-axis.

Two questions though :

  1. Do I need to have a top/bearing support for the z-axis? I know the official velleman one doesn’t have one. If so can anyone link me to one that will accept a 10 mm trapezoidal screw?
  2. If I fit the gt2 belts as they are with 20 teeth pulleys, will they collide? (I am not fitting tensioners yet)

Thanks!

Dave

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2

  1. What kind of leadscrew do you use? The Velleman K8204 kit?

  2. Yes, the belts will collide.
    There is a solution on thingiverse that repositions the Y motor to untangle the belts.
    I used that as a base for my GT2 2mm/16teeth Belt mod.
    I added support for belt tensioning to the X axis idler and modified the Y idler parts to fit my flanged bearings.

3

I’ve got the original k8200 screw at the moment, swapping it for tr10x2

Don’t suppose you’ve got a link for the part? I don’t want to print the wrong one haha :slight_smile:

4

[quote=“Sonicboomish”]I’ve got the original k8200 screw at the moment, swapping it for tr10x2

Don’t suppose you’ve got a link for the part? I don’t want to print the wrong one haha :)[/quote]

Here is the link to the XY Belt mod i used :
thingiverse.com/thing:334211

You have to render the individual parts in SCAD (OpenSource) then export them as stl. openscad.org/downloads.html
This allows for easy modification. Let me know if you need help with that.

For the Leadscrew mabe have a look at this : thingiverse.com/thing:648925
All parts are available as 123D Design (free from Autodesk) files for tweaking.

cheers,

Christian

5

Thanks for you help Christian,

It looks like that the bottom belt of the Y-axis will rub slightly on the X-axis “sliding rod”. Doesn’t look like the belts will touch as they’re 20 teeth, not 16, so I might just fit them and have a look. If it just touches the sliding rod then I’ll fit a ball bearing tensioner to pull the belt down. Should work.

Your hanging Z-axis looks good. I will fit the trapezoidal screw as it is, without a top support, just for print quality, then print the parts & change it over to your one. I doubt the motor will get damaged from just a few prints.

Does this all sound okay? I’m new to the whole “major upgrade” thing so just want to make sure I’m not overlooking anything!

6

I would print all the XY Axis upgrade ant mountthem, especially the X-Motor “spacer”.
The thingiverse Thing is originally designed for 20 tooth gt2 pulleys, so i think you will need the whole lot of parts.
I just found out it works as is for 16 tooth pulleys too.

cheers,

Christian

7

Okay will do, thanks!

Regarding the e3d v6, I have used the e3d heater & thermistor, do I need to change anything in the firmware for this? As I believe it’s 12v?

8

No changes necessary. At least for the Heater cartridge.
The Velleman heater is also a 12V type AFAIK.
The Thermistor should also be the same type.

9

Hey!
Just thought I’d give an update. I have fully installed the e3d with 0.3 nozzle, installed gt2 belts with 20 tooth pulleys. And I did my first print with the new upgrades!

Also the gt2 belts do not collide with 20 teeth pulleys. The bottom y axis belt JUST touches the xaxis bar, but negligible. I will print a tensioner that pulls this away anyway. My next step is to fit the tr10x2 trapezoidal lead screw.

First print - 15mm cube. 0.3 nozzle, 0.2mm layers, PLA at 210c, 60mm print speed.

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