Open Panzer

Open Panzer Help & Info => Show and Tell => Topic started by: thegreen on November 08, 2021, 01:15:44 PM

Title: 3d print T34
Post by: thegreen on November 08, 2021, 01:15:44 PM
Hi

I am printing my first tank. Great project from 3dprintedtanks! I am new to this hobby, i made lot of rc truck and some plane but never rc tank. I made some search for mainboard and they appear that they are very expensive !! taigen tanks is economical choice but no configuration option.. so tcb will be my choice. i take time to find alternatives for compomnent obsolète or out of stock. I will have to ordre them but i have time! printing these tank take time!
(http://)
Title: Re: 3d print T34
Post by: JPS99 on November 08, 2021, 02:15:50 PM
Good luck with your project. Yes, I've printed several tanks and they run around 400 hours of print time or more. You'll have plenty of time for research!
Regards,
Joe
Title: Re: 3d print T34
Post by: LukeZ on November 08, 2021, 03:07:12 PM
You're off to a good start! Keep us updated on your progress. I don't know what you plan for the TCB. I usually don't recommend people trying to assemble their own, even though of course the design is freely available, but it is not a simple process and I don't want people to become frustrated when their board doesn't work. Also right now it is very difficult to get certain necessary components due to the global chip shortage. However if you can find an Arduino-compatible Mega board then you can get quite a few features working without too much extra work. This thread is the place to start reading about that: Testing TCB Firmware with Stock Arduino Mega (http://openpanzer.org/forum/index.php?topic=16.0)

Also if you are able to upload your pictures in JPG format that would be better than PDF!
Title: Re: 3d print T34
Post by: thegreen on November 08, 2021, 03:55:19 PM
i work in electronic so assembling pcb is not a problem. its easy to find mosfet or capacitance with same value than the one you used. for the mega2650 they seem to have some in allie express. I will see in time but thanks for the link I will rend it
Title: Re: 3d print T34
Post by: thegreen on November 11, 2021, 02:45:47 PM
when you talk about assembling the tcb is there common problem or if I follow the drawing everything should be ok? ( in the case that my assembly is good)
Title: Re: 3d print T34
Post by: LukeZ on November 14, 2021, 02:00:50 PM
If you follow the schematic and Bill of Materials and succeed in getting everything soldered/reflowed correctly you will be fine. There is no common problem, but you need a lot of experience with this kind of surface mount assembly and most people have not done it before. I ruined many boards myself before I got good enough and those were very expensive lessons! Also if your board doesn't work it is very hard for me to help you troubleshoot since there are so many things that could have gone wrong during assembly that I will not know about it. Therefore I generally discourage people from trying this, but I won't say absolutely don't do it.
Title: Re: 3d print T34
Post by: thegreen on November 25, 2021, 06:54:56 AM
these project are so easy to print and built ! its really like a tamiya kit.
Title: Re: 3d print T34
Post by: thegreen on November 25, 2021, 06:56:37 AM
i have ordered my pcb. the great fun will begin soon!
Title: Re: 3d print T34
Post by: thegreen on November 25, 2021, 06:58:11 AM
other photos
Title: Re: 3d print T34
Post by: Patrionzel on February 09, 2022, 12:12:24 PM
Hello, My name is Oleg. I'm from Russia.
I also make this tank. Specially for him, I made files for rolling back the gun. Always ready to share.
Title: Re: 3d print T34
Post by: Patrionzel on February 09, 2022, 12:35:48 PM
I do control on Arduino Mega, sound Das Micro
Title: Re: 3d print T34
Post by: thegreen on February 09, 2022, 09:51:25 PM
i have finished assembly! i need to put electronic. the assembly of the tcb was ok except that there is no good atmega and i didnt find the right usb/uart IC... i will put that aside and build the other version with the arduino. i have already one. more easy to assemble. when electronic part will become disponible i will finish the tcb to put it in another tank!
Title: Re: 3d print T34
Post by: LukeZ on February 12, 2022, 09:02:17 AM
Welcome Oleg! It is interesting you are on opposite sides of the world but both building the same tank and both using an Arduino for control.

I just posted a new member design to the Downloads page called the Baldock Shield (http://openpanzer.org/downloads#members). It seems you both already know how you want to proceed, but I mention it just in case it might give you some ideas.

Le Vert, j'espère voir des photos !
Title: Re: 3d print T34
Post by: Patrionzel on February 14, 2022, 11:11:09 AM
To begin with, I want to express my great gratitude
for your contribution to the development of tank modeling. Without
I would not dare to make a serious model of your development. I have a lot of experience in 3D modeling,
but I am nothing more than an amateur in programming.

Photos and videos will be required. And even advice to those who want to repeat the project when there are real results.
I post only the finished result.
Title: Re: 3d print T34
Post by: thegreen on February 14, 2022, 12:14:43 PM
haha merci Luke effectivement tu viens de la France!

Otherwise thanks for the info about the member project. I will mainly use the picture that you put in an ancient post about using arduino because I use 2 external esc and also Sbus reveiver. i will also install IR. about that; you really make the current rise to 2 to 3A with a 3ohms resistor and a .8A transistor without blowing it?? I will get a 4A transistor just to be sure. what is the range with that setup?
Title: Re: 3d print T34
Post by: LukeZ on February 14, 2022, 01:31:13 PM
K will also install IR. about that; you really make the current rise to 2 to 3A with a 3ohms resistor and a .8A transistor without blowing it?? I will get a 4A transistor just to be sure. what is the range with that setup?
Oui, this is correct, although I admit it is unusual. Using such a high current is necessary to get the range we need. All boards operate the same way. Tamiya uses a 1 ohm resistor so is even more extreme, in my testing that is too extreme and can result in a burned out LED. Heng Long uses 22 ohms, Clark 26 ohm (I tested a TK22), and IBU2 70 ohms.

I tested many resistors and ~3 ohms seemed to give the best tradeoff between range and reliability. Using a lower resistance would eventually burn out the LED, but higher resistances decrease the range. With the 3.3 ohm resistor I did a test where I fired the IR emitter 500 times in a row, with several seconds pause in between, and I did not burn up the IR LED emitter. I tested the range at over 40 feet / 15 meters but the actual distance can of course depend on sunlight and other conditions.

We are able to do this because the IR signal is so short. The IR LED is only "on" for a fraction of a second so it can survive being driven beyond maximum values. If you look at the TCB schematic/bill-of-materials, you will see we actually use a MOSFET (not a transistor) and it can handle several amps of current. Depending on the battery you use current draw should not be much more than 2 amps. But if will be fine if you want to use a transistor rated for higher currents.
Title: Re: 3d print T34
Post by: LukeZ on February 14, 2022, 01:32:21 PM
To begin with, I want to express my great gratitude
for your contribution to the development of tank modeling. Without
I would not dare to make a serious model of your development. I have a lot of experience in 3D modeling,
but I am nothing more than an amateur in programming.

Photos and videos will be required. And even advice to those who want to repeat the project when there are real results.
I post only the finished result.
Thank you for the kind words Oleg, and I will look forward to seeing your finished tank!
Title: Re: 3d print T34
Post by: thegreen on February 14, 2022, 09:27:44 PM
here are some photos of the project. that thing is huge!!! 5kg of PLA! about 700mm long!
Title: Re: 3d print T34
Post by: thegreen on February 14, 2022, 09:31:03 PM
other photos
Title: Re: 3d print T34
Post by: NS-21 on May 13, 2022, 04:57:30 PM
What a beautiful print!!!

What printer did this?

This is very, very high quality work!
Title: Re: 3d print T34
Post by: thegreen on May 14, 2022, 06:37:15 AM
hi and thank you very much ! I print them with a simple creality ender pro! i put some modification like linear rail put the calibration is what really make the différence. I have to put photos of the sherman of my son. i have almost finished the two board. I have use version with arduino. they will have most of the option with IR combat. One of them is finished and working fine. i have put taigen sound card. really nice print
Title: Re: 3d print T34
Post by: NS-21 on May 14, 2022, 05:13:43 PM
I would like to have such skills and experience in designing such models!
Alas, I am too old for this.
I have a lot of projects that I have thought about to the fullest, but I face only one problem - I do not have the knowledge and skills to draw them.

All I can do is solder and design a bit, thanks to LukeZ's advice and answers on this forum.

You are a great guy!
Title: Re: 3d print T34
Post by: thegreen on May 14, 2022, 05:50:23 PM
its really nice what you said but i am not the désigner ! I dont have the patience and the program to do that! i get the files at 3dprintedtanks.com. that Guy have designed some tanks. the price of the files are low for the quality of the parts. the manual is perfect, like a tamya. they take long time to assemble but are easy to print and if your printer is calibrated you will have very few corrections to do
Title: Re: 3d print T34
Post by: NS-21 on May 14, 2022, 06:02:38 PM
its really nice what you said but i am not the désigner ! I dont have the patience and the program to do that! i get the files at 3dprintedtanks.com. that Guy have designed some tanks. the price of the files are low for the quality of the parts. the manual is perfect, like a tamya. they take long time to assemble but are easy to print and if your printer is calibrated you will have very few corrections to do

And I thought it was your work.
In any case, this is great work. I would like to see photos of your work - in maximum resolution.
I know a holy man who presented to the world an excellent model of the KV-1 tank, in 1:10 scale! (https://www.thingiverse.com/thing:5069466)
This is great work! And his build guide is incredible!

If my homemade printer would print, at least in half the quality cases, like yours, I would start printing.

I really like the KV-1 tank from the tanks of the USSR, and there are favorite tanks from the Second World War of the USA and Germany.
Title: Re: 3d print T34
Post by: thegreen on May 14, 2022, 09:00:45 PM
if i had a bigger printer i would do that one
https://www.3dprintedtanks.com/is1en/
Title: Re: 3d print T34
Post by: NS-21 on May 25, 2023, 02:42:33 PM
if i had a bigger printer i would do that one
https://www.3dprintedtanks.com/is1en/

Greetings, dear!

I have been jealous of your tank and print quality for a very long time, and what can I say?

I'm doing KV-1! Scaled 1:10.

I have a printer with a large print area, and I am printing a project (more precisely, it is already printed by 60%) from this respected author:

https://www.printables.com/model/219806-tank-kv-1-rc-model-110

This is an incredible model!

P.S. I will also find an opportunity to buy from https://www.3dprintedtanks.com/ - the T-34 tank!
Unfortunately, there are still difficulties in paying, but I will overcome this difficulty as well.
And I'm also looking forward to when he makes a model of the IS-2 tank!