HICTOP 3DP-18 Build Experience

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guti
Posts: 3
Joined: August 24th, 2016, 11:16 am
Location: Tel Aviv
3D Printer(s): HICTOP Prusa i3 3DP-18
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HICTOP 3DP-18 Build Experience

Postby guti » August 30th, 2016, 4:55 am

Hey guys!

Got my HICTOP 3DP-18 and I wanted to share my build experience and some of the problems I stumbled upon. I reached a state where the printer seems to be working technically (all axis are moving, extruder and heated bed are heating correctly, fans are working and the filament is being extruded. Nothing is calibrated so I can't really print yet.

Main points I took from the build process:

  • Missing washers for M3 and M8 screws - especially important for the Y-Axis connecting threaded rods, the pressure can break the acrylic frame
  • I had a really tough time making the Y-Axis belt go straight without rolling over to the sides of the bearing and touching the bearing holder, I feel that the structure is not that solid and that I'm going to have to continue calibrating it.
  • The ball linear bearings are shitty - balls just started to drop when I moved them a bit. I actually bought high-quality LM8UU bearings but the printer uses a different model.
  • The end-stop cables are short and the connectors are 2-PIN JST when the motherboard connectors are 3-PIN JST - I had to try and connect them several times until I got it right (will upload motherboard pictures later)
  • I couldn't mount the filament monitor together with the filament holder, the holes in the frame are overlapping (or I might be missing something). Because the original firmware comes with the monitor enabled if you don't connect it you get an error that filament is missing, I uploaded Chip's modified code without that feature.
  • It was hard to load the filament, I had to disconnect the extruder fan and guide the filament into the hot-end by visually looking at it. I connected the fan again with the filament already loaded.

Seems like the auto PID tuning values from Chip's configuration aren't optimal for this model, I ran PID Autotune and after uploading it the printer heats correctly most of the time but fails every once in a while, will try to use Ultimaker default values and see how it goes.

Will keep this thread updated with calibration progress.

Marlin Modified Source (Based on Chip's work)

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Last edited by guti on August 30th, 2016, 7:35 am, edited 1 time in total.

guti
Posts: 3
Joined: August 24th, 2016, 11:16 am
Location: Tel Aviv
3D Printer(s): HICTOP Prusa i3 3DP-18
Contact:

Re: HICTOP 3DP-18 Build Experience

Postby guti » August 30th, 2016, 7:15 am

Including the links to the documentation and source code for the printer (got the links from HICTOP):
Documentation + Software
Source Code

As always I highly suggest to think twice before running any .exe downloaded from a public Google Drive :) (I'm using a Mac)

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LePaul
Posts: 2392
Joined: February 7th, 2016, 10:26 pm
Location: Bangor, Maine USA
3D Printer(s): Ultimaker 2+, Folger Tech FT-5
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Re: HICTOP 3DP-18 Build Experience

Postby LePaul » August 30th, 2016, 9:09 am

Neat looking build!

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Chip Luck
Posts: 191
Joined: February 11th, 2016, 9:12 am
Location: Central Florida
3D Printer(s): HICTOP Reprap Prusa I3
Contact:

Re: HICTOP 3DP-18 Build Experience

Postby Chip Luck » November 12th, 2016, 7:21 am

Good luck with Hictop supplied source code. Never had any luck with it, reason I used Marlin from Github. Lot of the issues with your build, I can relate but overcame it. Good luck!

GKNY
Posts: 1
Joined: December 26th, 2016, 2:49 pm
3D Printer(s): HICKTOP 3DP-18

Re: HICTOP 3DP-18 Build Experience

Postby GKNY » December 26th, 2016, 2:54 pm

Hey Guti,

Did you ever get new bearings or a new power supply. I have the 3DP-18 on order and it has not arrived yet but I am trying to do as much research about the build prior to it arriving. I purchased the auto level sensor but am now thinking about the bearings and PS as mentioned by you and Chip. Any suggestions as to size/model? Any other suggestions would be appreciated. Want this to go as smooth as possible.

Thanks again,
GKNY

rcabor
Posts: 11
Joined: June 10th, 2016, 8:38 am

Re: HICTOP 3DP-18 Build Experience

Postby rcabor » December 28th, 2016, 8:12 am

I have the same printer. I have the power supply and mainboard swapped compared to you, and I found the endstops cables had plenty of room.

NotMyMonkeys
Posts: 1
Joined: January 30th, 2017, 10:53 am

Re: HICTOP 3DP-18 Build Experience

Postby NotMyMonkeys » January 30th, 2017, 10:56 am

Have this printer coming and will try to assemble between work and family stuff over the next two weeks. Have you finished your build and have everything calibrated?


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