# Sizing Problem

Home Evil Mad Scientist Forums Egg-Bot Sizing Problem

Viewing 15 posts - 1 through 15 (of 16 total)
• Author
Posts
• #20451
Folk Hero
Participant

I have quite a few nice SVG’s but when I try to use one with the Egg bot it won’t print. I get the error message saying it needs to be 3400 X 800 pixels.
If I increase the image to those dimensions I end up with a 40+ inch graphic.

any and all help appreciated

Folk Hero

#22167
Windell Oskay
Keymaster

First off, your page size should be 3200 x 800 pixels, not 3400 x 800. You may want to start with the EggBot template as an example.

Can you please say what the issue is with changing the dimensions? At the “standard” 90 pixels per inch, that template works out to ~35.5″ wide– it should not get to 40+ inches.
#22168
Folk Hero
Participant

Hi
Even at 35.5″ that’s still a lot more than will fit on an egg?

thanks
Folk Hero

#22169
Windell Oskay
Keymaster
There is not a fixed relationship between the template and the number of inches that artwork will take up. That relationship depends both on the size and shape of the object that you are drawing upon.

The units on the template — pixels, not inches — relate to the motion of the motors.  A full revolution of one of the motors is 3200 steps, shown on the screen as 3200 pixels, which gives 360 degrees of motion. You can think of this like latitude and longitude on a globe. 360 degrees around the equator is still one full revolution. However, the amount of distance along the equator is different on globes of different size. Similarly, lines of constant latitude are different lengths, depending on the latitude.
#22170
Folk Hero
Participant

Ok
When I enlarge the graphic to a width of 3200 and keep the perspective ratio it comes to 3200 X 1044. Will this work or do I need to change something.
P.S I’m using ping pong balls.

thanks
Folk Hero

#22171
Windell Oskay
Keymaster

That will *probably* not work. The larger vertical range (1044 vs 800) means that you’ll be asking the pen to go further “north” and “south” (using a globe model), and it will likely bump into one or both of the egg couplers.

#22172
Folk Hero
Participant

Ok if I reduce the 1044 to 800 that brings it 2492 X 800. Will that work?

thanks
Folk Hero

#22173
Windell Oskay
Keymaster

It will fit, but it will not wrap around seamlessly.  Depending on what you are drawing, this may be optimal or suboptimal.

#22174
Folk Hero
Participant

Hi
After trying several different things I have come to the the conclusion I may be no smarter than a box of rocks.
If you can tell how to (step by step please) print this on a ping pong ball for my wife not only will I be eternally grateful but this will get her off my case for spending \$200.

thanks
Folk Hero

#22175
Lenore Edman
Keymaster
First, I’ll need to know what step to start with. So, first question: have you successfully printed the “Hello World” file on something using the EggBot?
#22176
Lenore Edman
Keymaster

Also, the file will work fine. I’ll follow up with steps on how to use it once I know about where you’re at.

#22177
Folk Hero
Participant

Hi
I didn’t do the “hello world” file instead I did the “smiley face” one with no problem.

thanks
Folk Hero

#22178
Lenore Edman
Keymaster

Great! First step: open up the EggBot template. Select the logo from your file, copy it, and paste it into the template.

#22179
Lenore Edman
Keymaster

If you want, you can scale it up to fill the vertical height of the template. Go to Object –> Fill and Stroke and set the fill to none and the stroke to black. If you plot at this point, it should show the outlines of the logo.

#22180
Lenore Edman
Keymaster
There are several methods of filling it in which are described here: