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  1. #21
    Engineer-in-Training
    Join Date
    Jul 2016
    Location
    Pennsylvania, USA
    Posts
    255
    The advantage of the upgrade kit is that you *know* it works. All the silly bugs have been worked out of it. The parts fit and do everything they need to do. The only thing that may be suspect it the BLTouch and Marlin. From what I have seen with the RC8+ builds (and some mods) the BL Touch works pretty well. Not as well as the inductive probe on my Mk2, but it even it could use a little help from time to time.

  2. #22
    Engineer-in-Training
    Join Date
    Jul 2014
    Posts
    307
    I have been working with the Titan the last 2 days. I have it installed with a pancake Nema 17 motor and I have run into zero issues. The thing just keeps printing and I love the ease of use compared to the old direct drive.

  3. #23
    Engineer-in-Training
    Join Date
    Jul 2016
    Location
    Pennsylvania, USA
    Posts
    255
    I played with the Titan for a bit and found that the direct drive did a better job and was at least as easy to use ...

  4. #24
    Engineer-in-Training
    Join Date
    Jul 2014
    Posts
    307
    Quote Originally Posted by uncle_bob View Post
    I played with the Titan for a bit and found that the direct drive did a better job and was at least as easy to use ...
    I appreciate your opinion, I just left my comments to help the OP.

  5. #25
    Looking to make the order, upgrade kit is out of stock. How important are the ACME upgrade screws?

  6. #26
    Engineer-in-Training
    Join Date
    Jul 2016
    Location
    Pennsylvania, USA
    Posts
    255
    The ACME screws are certainly an upgrade from the threaded rods. They give you a more accurate Z compared to the thread rods. Given how much the thread rods are bent, the improvement is anywhere between very little and quite a bit. The difference shows up mainly in "banding" in the Z axis. They also speed up the Z axis, that (to me) isn't a big deal. Your prints will come out 2 seconds faster ... The final improvement is in the durability of the Z drive. The thread rods *eventually* will chew through the nuts in the traps. As they chew through, things loosen up a bit. The Acme screws do the same thing on their nuts, they just do it slower ...

  7. #27
    Engineer-in-Training
    Join Date
    Jul 2014
    Posts
    307
    Quote Originally Posted by augerpro View Post
    Looking to make the order, upgrade kit is out of stock. How important are the ACME upgrade screws?
    I would highly recommend the Acme Threaded rod upgrade. I took a quick photo so please ignore the overall bad quality:

    http://imgur.com/SIq6Bsz

    I recently upgraded my threaded rods to 8mm Acme Threaded rods and have a before and after photo. On the left is the 8mm Acme Rod and on the right is the typical 5mm threaded rod. You can see the Z banding and the inconsistent layers on the right.

    I would not pay the price that Colin sells his kit. I purchase 2 of the following items on Amazon: https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1. Then all you need is to print the mounts and your upgrade cost is around $30.00.

  8. #28
    Engineer-in-Training
    Join Date
    Jul 2016
    Location
    Pennsylvania, USA
    Posts
    255
    The main money in the kit is going to the laser cut acrylic and the probe. I'd rather spend the stepper money on a unit with integrated screws like the one on the i3 MK2 than on any of the lash up / bolt on versions.

  9. #29
    Engineer-in-Training
    Join Date
    Feb 2015
    Posts
    367
    Quote Originally Posted by BLKKROW View Post
    I would highly recommend the Acme Threaded rod upgrade. I took a quick photo so please ignore the overall bad quality:

    http://imgur.com/SIq6Bsz

    I recently upgraded my threaded rods to 8mm Acme Threaded rods and have a before and after photo. On the left is the 8mm Acme Rod and on the right is the typical 5mm threaded rod. You can see the Z banding and the inconsistent layers on the right.

    I would not pay the price that Colin sells his kit. I purchase 2 of the following items on Amazon: https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1. Then all you need is to print the mounts and your upgrade cost is around $30.00.
    What did you have to print in order for this to work?

    I was looking at these and thought they would be a good fit.

    https://www.amazon.com/OpenBuilds-An...MZSX0SBA5AS881

    Also, how did you decide on the 8mm ACME rod instead of a M6 or similar? Like this one...
    https://www.amazon.com/dp/B00I5V4RVO...I3IK93R4AR8RBF

  10. #30
    Engineer-in-Training
    Join Date
    Jul 2014
    Posts
    307
    Quote Originally Posted by tsteever View Post
    What did you have to print in order for this to work?

    I was looking at these and thought they would be a good fit.

    https://www.amazon.com/OpenBuilds-An...MZSX0SBA5AS881

    Also, how did you decide on the 8mm ACME rod instead of a M6 or similar? Like this one...
    https://www.amazon.com/dp/B00I5V4RVO...I3IK93R4AR8RBF
    I had to print the mount for the 8mm nut here is an example: ttp://imgur.com/a/WjSmz . I also printed a mount for a ball bearing to support the top of Acme Threaded rod.

    I chose the 8mm Acme Threaded rod due to its common use in 3D printing. Using this and the A4988 driver I also get a nice 400 steps per mm.

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