0

I would like to make a DIY drop seeder like the one shown here. I am just very inexperienced with acrylic/plexiglass as a material.

  1. What thickness would you consider, looking at the video/image below?
  2. How would I go about creating those circular notches on the surface?
  3. Any considerations about cutting acrylic sheets?

enter image description here

1
  • Did you ever get this resolved? If so, please give a check-mark to the answer that helped you the most, or write up your own answer explaining what you did to get it fixed and give yourself a check mark. That will help others with this kind of problem know that this has a resolution and is a good place to look for their answer. – FreeMan Aug 14 '20 at 17:39
1

A drill bit will cut holes in acrylic, but don’t use acrylic or you will probably experience breakage like your example. Use polycarbonate, a name brand is Lexan. It can be purchased in the same thickness. It is usually a bit more expensive but it will not crack even when dropped, or hit with a hammer but will preform exactly the same otherwise.

0

I don't see notches as much as through-holes. Acrylic is easily cut to specifications by using a CO2 laser. For the design in the video, one could get away with 3 mm thick acrylic, keeping the weight down while providing enough strength for such a device.

Ed suggests polycarbonate, which is stronger and cannot be cut with a laser.

Finding a local makerspace, or posting a query on a laser forum such as Lightburn Software should find you a willing cutting resource. I've done a number of custom laser projects for members of both our local makerspace and visitors to the above noted forum.

Using a service is also a possibility, but the costs increase substantially for established industrial services one would find.

2
  • A laser to cut acrylic or polycarbonate? That's a bit overkill for DIY, no? I've worked with both with standard woodworking tools and had absolutely no problems at all. – FreeMan Jul 15 '20 at 16:19
  • It's an option available well suited for the task required. Good that you can work acrylic and polycarbonate with standard wood working tools. Overkill, no. Makerspaces and home-use laser cutters abound. – fred_dot_u Jul 15 '20 at 16:44

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.