Craig Anderson published a new build:

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Can you open these?

 

The drawings are not complete....For instance the bolts on the top plate that go into the 2060's needs to be countersunk so the motor mounts can be placed over them. Share them and I will see if I can find any problems.

 

Autocad but its a 1997 version that I own the license for. I run it on a virtual machine and use Windows Xp for the operating system. Its old. But most 3d programs still will upload it.

 

I taught Autodesk Inventor for 4 years. Why do I need Fusion 360? I have it on my machine. What is it that you are not getting? I sure don't need it in this build.

 

I graduated from college in 1970 with a degree in mechanical and a degree in industrial engineering. I still don't see what this projects lacks from an engineering perspective. Why do I need a 3d model?

 

That's up to whomever might want to copy the design. I am sharing it to demonstrate a way to build a delta without using die cast metal vertices, and still have a very strong and accurate frame for less than $200. Did you ever wonder how I can print my drill jigs if I don't have 3d capabilities.

 

I am not mad or upset. Feel free to copy this design if you choose. But I was taken back by your suggesting I should improve my skills. Sorry if I am too direct, its probably my being so old!

 

The build area is 330 mm dia and still not determined height.

 

Look at the "layout file". That will give you most of the info.

 

Here is a list of required aluminum stock. Please not the total cost for the frame materials.

 

I just posted some more files showing the carriages in final form. They lack the 3/4" metal balls but they have finally arrived. The arms will be similar the Huntly rods except I am making them myself. If you are interested, as I mentioned earlier, all of the parts have been drawn on 2d cad. If there is something you want I will post it. But, I am waiting until the end of the build to post the final BOM and drawings. The build diameter is 330mm. The uprights are 1000 mm, but until I get the heated bed placed and the upper horizontal braces installed, I won't know the build height. Something else I should point out is the carriages will ride on the outside of the uprights to provide more clearance for the effector.

 

When I began looking at this build, I wanted a wide rod spacing to enhance effector stability. I started out with 2080 uprights in my design and that gave me 100 mm between rods. I reduced that to 2060 after some conversations with others. Now the rod spacing is 80mm to give the carriage as much stability as possible. Also using 4 wheels per carriage while most use only 3 on a 2020 upright. When it came to the joints, I simple reverted to my structural background. The only other design that seemed strong enough was those using metal cast vertices, but they limit your choice in uprights. The corners have 9 bolts holding the upright, to the plate and the plate to the horizontal brace. Its like having a 100 mm corner brace. The plates and braces form a box at the bottom and top that is extremely ridged and flat. The horizontal braces not only brace the upright, but pull the plates into a flat position. I am building the frame without tightening the bolts from the horizontal braces to the uprights. After everything is assembled and check for square and alignment, I will slowly tighten the horizontal bolts both top and bottom and that will "lock" the frame in place. The power supply and SSR for the heated bed go into the bottom covered by a fireproof panel. There are two fans and one power inlet built into the lower horizontal braces. The electronics will rest on the top plate as will the motors. If I enclose the printer, I want the electronics outside of the heated area. My choices for controller is another Smoothie board, Duet Network, or Azteeg X5 mini.

 

Take a look at the picture I just posted showing the carriage and effector.