This part seem to get lost since i had my Data I/O 29B programmer Open for Firmware Update I figured I would Model. I Have tested this in 3 Different Data I/O 29B's and it fit all good. I left screw hole a little small as i seen 2 different screw sizes so i went with the smallest.
I printed in PLA .20 Layer and 6 Wall Loops For Strength.
The author marked this model as their own original creation.