Working through the upgrade. The bag of M12 with both lock nut or regular nut do not fit. They are not log enough to grab the nut. They need to be M14, M16 is too long. Idk I can’t for the life of me get them to go.
Alright first arm done! I found if I use a rounded Allen key and smack that nut I can get the screw started.
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You need to pull the nut into place by putting the screw in from the inside before attempting to join the 2 halves. Same with the screw, pull it into place with a nut on the inside. Remove the temporary nut (or screw) after pulling each into place. This is explained in the upgrade video.
4.1 Upgrade Instructions — Maslow
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Got cha, yeah I just finished the 4th arm using the hammer method.
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Yes, we are all learning.
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I also had trouble with the upgrade kit. After the second arm I started measuring the screw lengths and only used screws 11.6mm or longer. That helped. Basically all of the screws are shorter than 12mm. Half a millimeter is a full thread, so that’s significant.
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This may not be a timely response but I saved time by using an Allen wrench tool just large enough to fit in the bolt and nut holes in the arm halves. By placing the plastic arm half on a table I was able to push each nut and or bolt into the plastic hole using the Allen wrench far enough to grab a thread with one exception; always the same nut hole on each arm half would not grab a thread, so five out of six were tight.Saved a lot of time though…
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Add my notes as I am running thru the upgrade and following the instructions.
Removing the “9” bolts on the arm text is wrong and should read 8 bolts
Set aside the motor and… Section is duplicated and I think the first one is the one to be removed.
Seating the bolts in the arm spool I was fairly successful pushing hard with the torque driver.
For the nuts I was able to use a square (Robertson) #2 driver just because i avoided going back to the tool box for a punch tool.
The two bolts to close the halfs near the motor I felt needed some coaxing seating as well.
That’s all thru 2 arms so far.
Dano
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Excellent catches on those typos, I’ve updated the text. Thank you for pointing those out!
Finished my upgrade tonight and a few more thoughts.
- I forgot to put the arms back in right order and had to disassemble. I took opportunity to change order based on recommendations in other thread.
- To verify every arm and motor worked before complete assembly I temporarily put Maslow upside down on sled, not on rails or z motor, and connected all motors, powered up and ran retract all. I then powered back down to install correctly and bolt everything together.
- I decided to remove the 2 horizontal bolts on each linear rail top support. It seems to me future disassembly will be easier to remove the top supports instead of the whole arm and will be 4 less bolts.
- I took opportunity to run firmware update. But I already installed the cover on the board. I was able to use the original Allen key to press and hold the boot button thru the fan and cover successful. Just took a few chances to find the right angle of attack.
- Specific to firmware upgrade my PC had 2 com ports and Maslow was discovered on the second one. So I had to wait for the script to timeout on the first com port each time (3) the script connects. Not an issue just FYI for others.
Dano
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Hopefully you also made the matching change in the maslow.yaml for the various Z-Offset values
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Ah yes i did in fact do that too. Thanks for the double check!
Dano
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