I am trying to wrap up assembly of my Maslow 4.1 and as I am installing the linear rod support I have noticed that the support does not touch the sled. I have seen that this may be due to the rod being too long, but could it be that I did not hammer in the rod enough during that part if the assembly process. What is the best solution? I could 3D print a shim to put under the support if that will work.
People have had success putting a shim under the support.
I too had this issue and contemplated shims, but on measuring the liner rods they were exactly the right length - so I realised it was an assembly issue.
I had to loosen the screws on the linear rod mounts (where they mount to the sled) and give the rod a gentle tap with a hammer to seat it firmly, before screwing everything down.
That solved the issue for me.
1 Like
I was able to hammer them in a bit and that did the trick. Thanks for the advice. I guess I was not aggressive enough with the hammer when initially installing the rods
1 Like
It’s tricky to know exactly how hard to hit it with the hammer 
I am glad that it worked out
I just finished building my 4.1 and am excited to get it running. I ran into the same issue where the linear rod supports were about 7mm above the sled base and the bolts would not reach through the sled. After seeing the posts about some Maslow4s shipping with rods that were too long, I convinced myself that I got some of those. But then I did some disassembly and went back to tap the 201mm linear rods in deeper. It took more forceful tapping than Bar used in the video and I was concerned that it would break the receiver. But, fortunately it didn’t. The linear rod supports were now about 2mm above the sled and it went together without deflecting the brackets at the top. My suggestion for the assembly instructions is to test fit the linear rod supports during the sled assembly before moving on to the next steps and to give guidelines for the correct gap at the bottom of the rod supports (2mm?) or distance to the top of the rod. Mine measured 207mm high from the bottom inside the recess for the linear rod clamps to the top of the rod after the additional tapping.
1 Like
I had to disassemble the maslow for a local makerspace, and I reassembed it with
these at the top of the towers
I found them MUCH easier to use, but I need longer bolts to clamp around the rod
(or to change these to have a cutout for the nut, which I will do soon)
As an added bonus, the way they go around the top of the tower means that once
you set them in place, there is no way for the nuts to fall out (not planned,
but nice)
David Lang
2 Likes
The 4.1 linear rods are precision cut so they should be exactly the right length, but I wonder if humidity or temperature or something like that could impact how much force is needed to seat them fully in the sled?