25 x 25 x 6 Dual Leadscrew Machine

Notes and Corrections

Black iron gas pipe is listed as the material for the rails. This can be replaced with galvanized plumbing pipe or rigid electrical conduit.
All of these pipes have served well. Choose the ones with the smoothest surface.
The belt may wander on the idler. This is usually resolved by slightly bending the idler's axle. A slight offset can make a large difference.
If needed, a flange or two can be added to the idler as shown on the Drive Systems page.
The following was corrected in the PDF downloads in April 2012.

Section 1.9 Materials.

The total 5/16-18 nut count reads 106. This should be 118.

The detailed materials list for the 25x25 machine states 12 5/16-18 nuts for both the X and Y rail supports.
This should be 18 nuts for the X and Y rails. This increases the total 5/16-18 nut count by 12 pieces, from 106 to 118.
These plans do not include directions for the software and electronics because the suppliers cover this information for their own products.
These plans do give directions for deriving the Step per Inch values that are needed to configure the software for these machines.
The machines were all designed to use NEMA 23 stepper and drive components such as those from Geckodrive, Xylotex and HobbyCNC.
Mach3 and TurboCNC are popular controller software options. Other software and motor suppliers can be used.
The above vendors work with the Do It Yourself market and have help forums and documentation.
Clicking a Buy Now button in the table below will forward you to PayPal via the downloading service.

You do not need a PayPal account to use a credit card with PayPal.

The Digital Download page gives more information about downloading the plans.
The 13x13 is included with these 25x25 plans.

These plans are also in the Three Plans set, which includes the 13x13, 25x25 and the 24x48.

The plans are also in the Five Plans bundle, which includes the 10x9, 13x13, 18x24, 25x25 and 24x48.
25x25 CNC Machine
25x25 Dual Leadsdcrew
Also includes the 13x13
25x25 Plan
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The file size is 14,643 KB (14.6 MB)
The plans are downloaded as one PDF.
The file name is 25x25_13x13_plans.pdf


Three Plans
The 13x13, 25x25 and 24x48
digitally delivered as one PDF.

Three Plans
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The file size is 25,275 KB (25.3 MB)
The file name is 24x48_25x25_13x13_plans.pdf


All five CNC plans
digitally delivered as one PDF.

Five Plans
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The size is 32,351 KB (32.4 MB)
The file name is 5_plans.pdf