# With an 8mm drill bit and a piece of threaded rod, thoroughly ream out all of the 8mm holes in the apexes. These parts are quite durable and they are unlikely to break; be aggressive. The threaded rod should pass through the holes relatively easily.
# With an 8mm drill bit and a piece of threaded rod, thoroughly ream out all of the 8mm holes in the apexes, using the threaded rod as a file. These parts are quite durable and they are unlikely to break; be aggressive. The threaded rod should pass through the holes relatively easily.
#[[Image:MOST_HSPrusa_frame_3.jpg|thumb|right|Parts for one triangle.]] Put a rod clamp on one 370 mm rod with a washer and a nut on both sides. Don't screw it tight; you'll need to adjust the position later. Put a nut and a washer on each side of each rod.{{clear}}
#[[Image:MOST_HSPrusa_frame_3.jpg|thumb|right|Parts for one triangle.]] Put a rod clamp on one 370 mm rod with a washer and a nut on both sides. Don't screw it tight; you'll need to adjust the position later. Put a nut and a washer on each side of each rod.{{clear}}
#[[Image:MOST_HSPrusa_frame_2.jpg|thumb|right|Complete triangle.]] Put the trangle together. Make sure the clamp goes between the footed vertices and the feet are both on one edge of the triangle.{{clear}}
#[[Image:MOST_HSPrusa_frame_2.jpg|thumb|right|Complete triangle.]] Put the trangle together. Make sure the clamp goes between the footed vertices and the feet are both on one edge of the triangle.{{clear}}
Rod clamp (some shown white in the pictures below, but all should be silver)
6
Vitamins
Description
Count
440 mm M8 threaded rod (Top horizontals and bottom of z-axis)
3
370 mm M8 threaded rod (Triangle sides)
6
290 mm M8 threaded rod (Lower horizontals)
4
M8 nut
60
M8 washer
66
M3×12 mm cap screw (Melzi mount)
4
M3 nut
4
M3 washer
4
Assembly - Summary
Assemble triangles
Assemble horizontal rods
Put them together
Assembly - Step-by-Step
With an 8mm drill bit and a piece of threaded rod, thoroughly ream out all of the 8mm holes in the apexes, using the threaded rod as a file. These parts are quite durable and they are unlikely to break; be aggressive. The threaded rod should pass through the holes relatively easily.
Parts for one triangle. Put a rod clamp on one 370 mm rod with a washer and a nut on both sides. Don't screw it tight; you'll need to adjust the position later. Put a nut and a washer on each side of each rod.
Complete triangle. Put the trangle together. Make sure the clamp goes between the footed vertices and the feet are both on one edge of the triangle.
Repeat for the other triangle.
Top base rods.Assemble the two top base rods (290 mm), which will go through the top holes of the footed vertices. The image shows the pieces for one rod, and another rod assembled.
Top rods.Assemble the top rods (440 mm).
Bottom base rods.Assemble the bottom base rods (290 mm).
Attach the horizontal rods to between the triangles. The bottom frame rod with the nuts and washers on it is the front of the machine. The extruder will be on the left of the top rods, so leave more space there than on the right.
