I’m about to tackle upgrading my 4.0 to 4.1 with the upgrade kit.
From the blog post, I’ve reviewed the sled and arms videos.
However, the sum of those two aren’t enough to finish.
Where can I find the complete set of videos to guide my upgrade to 4.1?
You can find all of the assembly videos here:
@Bar, since you were so quick to answer I’ll ask another question.
What was the proper size hex driver I needed (which wasn’t included)?
I could comb through your weekly updates to find out but I’d prefer to ask here.
For 4.1 upgrade I believe they are T10 Torx screw heads.
Dano
Bar wrote:
You can find all of the assembly videos here:
note that the website links for the 4.1 instructions still show the 4.0 pictures
David Lang
with the 4.1 you need a t-10 driver for most of the nuts and a T-8 for the
setscrews that hold the gears to the motor.
there are short, L shaped drivers of both sizes included, and a nicer T-8
driver, but not a good T-10 driver
note that the T-8 is fantastic for picking up the locknuts and positioning them.
they are the perfect size to fit in the nylon end with just a smidge of grip.
David Lang
TravisGood wrote:
@bar @Dano @dlang Please correct me if I’m wrong but the upgrade process appears to be roughly: 1) disassemble everything necessary to swap in the upgrade components but no more, 2) reassemble using new hardware as provided, 3) update to new firmware. Is that about right?
I ask because all the guides seem to assume building a full kit.
Yup! That’s basically it. You can find the instructions for just upgrading here: 4.1 Upgrade Instructions — Maslow
For 4.1 full kit, should these videos be followed in any order? It would be great if there was a document to print and have in the garage to follow, as not all of us have great eyes.
I generally like to go in the order here: Assembly Guide — Maslow
This is what I’ve been looking for all along.
Too bad I’ve now almost completed the upgrade. 
Out of curiosity, why are we upgrading the two linear rods?
TravisGood@gmail.com wrote:
Out of curiosity, why are we upgrading the two linear rods?
some people initially got rods that were off on their length, so the 4.1 upgrade
has them more precisely cut to length.
if your old ones work, no need to upgrade.
David Lang