Search found 56 matches

by rofl
Mon May 11, 2020 7:39 am
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 757
Views: 2915557

Re: Hacking the HP45

I will work this evening with some ideas. I will let you know the results. I am very greatful for your help. By the way, HP connector tends to bend a bit when fixed on PCB. Springs lift its sides a bit. I hope that does not affect connection severely. See image. I did not overscrew it. Screws are ju...
by rofl
Fri May 08, 2020 8:00 pm
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 757
Views: 2915557

Re: Hacking the HP45

Thanks for reply. I am also having some difficulties testing the head. When I connect it, I noticed that connection is quite unstable, i.e. sometimes temperature shows -0.2, but when I push it really hard, it shows ~25-30. Rarely, I manage to test the head and it shows 300/300, temperature also is s...
by rofl
Thu May 07, 2020 7:16 am
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 757
Views: 2915557

Re: Hacking the HP45

dragonator, I am testing head and all seems good, but could you help me to understand what was the purpose of VHEAD pins? It seems like separate power for head? I am more or less talking about that connection pin next GND and 12V terminal. I have completely redesigned Oasis for metal printing and I ...
by rofl
Fri Sep 06, 2019 1:49 pm
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 757
Views: 2915557

Re: Hacking the HP45

Thanks, great! Really appreciate that. By the way, if someone is willing to make PCBs, quite nice supplier: https://jlcpcb.com/ I ordered: controller board, 5 units, for 4 dollars (80ct each) and driver board (gold plated), 5 units, 18 dollars (3.6 dol. each). They also have cheap shipping options a...
by rofl
Wed Sep 04, 2019 6:24 pm
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 757
Views: 2915557

Re: Hacking the HP45

I am trying to get components for your HP45 driver (3.01/3.02), but I am bit confused with some ICs as current available options are not exactly ones you described. 1. HCF4081. Right now I am able to find HCF4081BEY (but it is DIP version) only at some local vendors and chinese vendors. There is als...
by rofl
Mon Aug 26, 2019 9:27 pm
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 757
Views: 2915557

Re: Hacking the HP45

Hello and welcome to the forum. It is a bit quiet at the moment, but most people do take a look occasionally. If they cannot help I am already set to start again somewhere around September. Best of luck Hi, first of all, thanks for your great work and documentation. I am more or less expert of FDM ...