Candy-V1

4-Axis 3D Printer

Made by: @outdatedcandy92

Repository: https://github.com/Outdatedcandy92/CandyV1

Total Hours: 3

✅I have a 3D printer or will be getting one before March 21st

Overview:

CandyV1 is my attempt at making a 4-axis polar printer. It would work by having a rotational C-axis for the bed and a rotational B-axis on the extruder, additionally the plan is to have the bed move linearly in the Y-axis.

Desired Specs-

Polar printer + rotating toolhead
Uses Klipper
0.1mm resolution
multi-color (maybe)
raspi 4 controller
build volume: doesn’t really matter
timelapse feature
tangle detection

Day 1 (3rd Feb, 2025)

Did preliminary research on polar printers and how they work

Want something like this by Joshua https://www.youtube.com/watch?v=VEgwnhLHy3g
Instead of the toolhead moving on the X-Axis I’m thinking of the moving the whole bed if possible???

Did a little bit of researching about 3D printer parts

I want this thing to be able to fit on my shelf/desk, build volume doesn’t really matter i just want to make

Time Elapsed: 1 Hrs

Day 2 & 3 (4th-5th Feb, 2025)

Created a project timeline and set up deadlines
worked on formatting this markdown file and writing a description for this project

I was thinking about how printing with a rotational bed would work, like how much should i rotate to get to a set coordinate on a cartesian plane.

Studied about polar coordinates and how they really work.
Turns out its very easy to convert cartesian coordinates to polar ones.

Below is the math for how it works for a point (x,y) on a cartesian plane.

Find linear position (r) of the bed by using pythagoras theorem

$\ r^{2}=\sqrt{x^{2}+y^{2}}$ r^{2}=\sqrt{x^{2}+y^{2}}
Find angle of the bed (θ) using trigonometry (use Sin/Cos/Tan based on the quadrant of the coordinates). here we assume its in the 1st quadrant

$\ \theta = \cot(\frac{y}{x})$

Polar coordinates are (r,θ)

I still have no idea what parts im gonna use