SoliForum - 3D Printing Community — Ramps 1.4 Detailed Build information

Re: Ramps 1.4 Detailed Build information

null@example.com (leadpan) — Thu, 16 Jun 2016 18:51:46 +0000

Hey Barry, how Ramp printing Da Vinci so far?

Re: Ramps 1.4 Detailed Build information

null@example.com (barry1685) — Fri, 09 Oct 2015 19:34:43 +0000

Yep, they were easy to adjust. They are running a little under .5 - The y axis is a little more noisy than my x axis though. I think its because of the copper bushing vs linear bearing.

Re: Ramps 1.4 Detailed Build information

null@example.com (carl_m1968) — Fri, 09 Oct 2015 17:21:38 +0000

DopeSkrit wrote:

barry1685 wrote:
Ramps is finished on marlin. I adjusted the code a bit for some other features. It took a lot of time calibrating but its possible to do.
Are the stepper motors running cooler with the RAMPS board?

As long as he set the current correctly the motors should just get warm and that is mostly from ambient generated by the bed.

Re: Ramps 1.4 Detailed Build information

null@example.com (DopeSkrit) — Fri, 09 Oct 2015 17:17:56 +0000

barry1685 wrote:

Ramps is finished on marlin. I adjusted the code a bit for some other features. It took a lot of time calibrating but its possible to do.

Are the stepper motors running cooler with the RAMPS board?

Re: Ramps 1.4 Detailed Build information

null@example.com (barry1685) — Fri, 09 Oct 2015 13:39:08 +0000

Ramps is finished on marlin. I adjusted the code a bit for some other features. It took a lot of time calibrating but its possible to do.

Re: Ramps 1.4 Detailed Build information

null@example.com (barry1685) — Tue, 06 Oct 2015 13:00:15 +0000

I got the code functioning last night with d9 controlling extruder fan as well. Just need to work on endstops code. I want to understand it more

Re: Ramps 1.4 Detailed Build information

null@example.com (barry1685) — Tue, 06 Oct 2015 12:22:52 +0000

Cool thanks for sharing. Just curious how you handles the thermistor under the bed. If that thing gets loose or isn't close to bed it gets incorrect readings. I'm just using kapton tape to hold it in place

Re: Ramps 1.4 Detailed Build information

null@example.com (carl_m1968) — Tue, 06 Oct 2015 02:57:55 +0000

I just mounted the RAMPS right behind the existing door on the back. The cut a hole for a 120mm fan glued the fan to the outside with a small hole for a wire to go through. Then put a guard over the fan. Looked nice actually and cooled very well. Ran the RAMPS on several 24 hour prints with no issues. On a RAMPS it is not actually the stepper drivers that need cooling. It is the MOSFET that controls the bed. That is notorious for shutting down under heat.

Re: Ramps 1.4 Detailed Build information

null@example.com (barry1685) — Tue, 06 Oct 2015 02:39:19 +0000

Yea I added my own led strips too. The annoying part right now is wiring is short with kit but I'll fix that in the future. Led screen is mounted temporarily just to get things working. Panels will be added every eventually. I thought about mounting in back but cooling will be insufficient and cheesy with fan. The cooling is great now but wires are annoying

Re: Ramps 1.4 Detailed Build information

null@example.com (carl_m1968) — Mon, 05 Oct 2015 21:28:31 +0000

I kept mine looking stock. mounted the RAMPS in the back with a fan mounted to the stock cover. I then printed a case for the LCD and glued over the opening for the stock LCD. On the Opto endstops I cut about a quarter inch of the from where the mounting hole was but no circuit. I then cut the existing mounts slightly to accommodate the new endstops and mounted them all in stock locations Other than the enclosure for the LCD mine still looked stock I kept the existing power supply but added my own LED strips and did away with all 3.3 and 5 volt wiring.

Re: Ramps 1.4 Detailed Build information

null@example.com (barry1685) — Mon, 05 Oct 2015 20:07:33 +0000

Okay, been busy lately with soldering and wiring but here's a progress pic. Firmware is being worked out somewhat but had to change some pins for fan control. I'll post more details once its working.

LCD is rigged temporarily. I got rid of xyz junk plastic and im going to add PETG panels.

Re: Ramps 1.4 Detailed Build information

null@example.com (barry1685) — Fri, 02 Oct 2015 14:03:01 +0000

KevinME wrote:

This is awesome! This is exactly what I have been looking for in order to make the jump myself to ramps. Thank you so much for doing this and keep the details/pictures coming. Any chance you could also make a suggestion on where to buy the parts. I was looking on amazon for the ramps 1.4 but it didn't look like it had good reviews.

I would be very hesitant buying ramps on ebay/amazon since this one guy had the mosfet installed incorrectly by the manufacturer. This article isn't davinci related but he posts sources to legit ramp kits.

http://letsmakerobots.com/node/35809

www.Makergeeks.com - The owner Josh is awesome and has all legit parts for ramps and has various ramp kits. Josh is awesome and can help you out via email with simple questions, I wouldn't bother him too much though.

Re: Ramps 1.4 Detailed Build information

null@example.com (barry1685) — Fri, 02 Oct 2015 14:01:04 +0000

Here is a useful markup of where wires need to go in the ramps board.

Re: Ramps 1.4 Detailed Build information

null@example.com (KevinME) — Fri, 02 Oct 2015 13:59:21 +0000

This is awesome! This is exactly what I have been looking for in order to make the jump myself to ramps. Thank you so much for doing this and keep the details/pictures coming. Any chance you could also make a suggestion on where to buy the parts. I was looking on amazon for the ramps 1.4 but it didn't look like it had good reviews.

Re: Ramps 1.4 Detailed Build information

null@example.com (barry1685) — Fri, 02 Oct 2015 13:47:41 +0000

So I have been busy stripping my davinci and getting the wires ready for ramps 1.4 Here is a summary of what I had to do.

Here is a picture of the ramps kit with laser cut wood frames:

1. First I disassembled the outer plastic of the davinci leaving the metal frame so I could reroute wires to ramps, my ramps is going to be assembled outside of the davinci in a wood box.

2. I then assembled the wood laser cut box and installed the frames. I have to cut and strip the atx PSU (12v wires) and installed them into the ramps power port. Here is a link to a tutorial on doing this. You need to short the motherboard connector to allow the PSU to operate without a PC. (https://www.youtube.com/watch?v=53Lfy5oh7ho). I also installed pc fans to cool ramps in the wood box using the atx PSU connectors. Here is a picture of the ramps with some wires inserted.

3. I rewired all the wires to go to the wood box with ramps. I replaced the 300k davinci heated bed thermistor with a standard 3950 beta 100k thermistor. I also removed all the junk wires (blue wires that are on the heated bed, red wires/ yellow wires that connect to the davinci optic endstops and removed the davinci optic endstops. Here is a pic of where it current stands.