I’m curious to know other people’s experience with the CTC printer. I have two and have had varying degrees of success. I love the printer for the price, but there are definitely some issues with it.
Please take a look at the survey below and share your experience with others. I promise this is not spam or a virus and you don’t have to share your email or other information.
http://goo.gl/forms/6t5cL8Ngbf
Thanks!!
Joe
1 Like
iCloud
September 3, 2015, 5:32pm
2
Love mine to bits going to buy another one best upgrades you can do is fix the heated bed sensor which I did and upgrade extruders, lights, glass bed and enclosure and an active cooling fan and overhead spool holder
Hi iCloud,
Do you have links to where I can get your said upgrades- mainly the upgraded heated bed sensor and extruder?
Thanks!
iCloud
September 4, 2015, 8:55am
4
http://kolobus.co.uk/collections/spare-parts/products/kolobus-mk9-extruder-feed this is the extruder drive upgrade and you need to solder a 100kohm thermistor on the bottom of the heated bed as the one that is currently installed is a 50k and the systems works via pull up and down resistors connected to the thermistor and they install wrong one at the factory
Nice one, Joe! Make sure to share some insights in here as well. Cheers!
Thanks for that information. Can you please explain a little more about the 100kOhm thermistor?
So the printer uses a thermistor soldered to the bottom of the build plate. The resistance is a function of temperature and the control board uses this resistance value to decide if the plate is warm enough to print.
I’m assuming a 100kOhm thermistor is more accurate since you have better resistance resolution over a set temperature range?
Does the firmware need to be modified on the CTC to take into account that a 100kOhm thermistor was added?
Thanks!
iCloud
September 8, 2015, 11:02am
7
Yes exactly that but the 100k thermistor replaces the 120k ohm resistor I think it is currently installed and when I set my printer to 110°c the top reads 105 and bottom 108°c
