Generic LED ramp holder
Hi,
I saw on this forum and on thingiverse some very good LED ramp holder, but since I want to use a specific LED ramp which provide lots of light, modifying exiting design was not efficient so II started to design a new one.
However, instead of making just another specific holder, I tried to make it useful for lots of people.
The LED ramp I want to use is this one: http://www.leroymerlin.fr/v3/p/produits/reglette-a-fixer-moss-inspire-led-1-x-4-w-led-integree-blanc-e1401398379#&xtmc=inspire_led_4w&xtcr=18
4W for 380 lm, pretty light, long enough to provide light under the extruder from the sides, no external PSU, and a decent price (18 €).
I also have an ikea Dioder which I will try as well to have fun with color changes 😉
My objectives then are the following:
- Provide good amount of light on the print area so that a side webcam will have a good level of light..
- As generic as possible, should hold my specific LED ramp, but should easily hold other types by adding adaptators if necessary instead of modifying the design.
- No impact on printing area size.
- Ability to tweak the angle of the light. I just so hate to have LED light in the eyes while seating on my desk.
- Make it printable on the prusa, of course ! So the length should stay slightly below 200 mm
- Optimize amount of filament needed (not sure how to do that).
To support my LED ramp, I just used some zip ties, which is just doing the work.
For ikea dioder support, I will design additional clip that will hold the 4 ramps.
My first prototype looks like this:
For now I know that regarding the print area, the design is bad. The top of the extruder is touching the holder when Z reach 189 mm. In addition, the extruder right plate is touching the right arm when X value reach 197mm. Next version must take care of that.
The ramp is just hold by zip ties traversing the holder through a series of holes traversing the twisted end of the holder. This part of the design is quite satisfying. It also provide a good way to change the tilting of the ramp once the zips are tighten .The clips I plan to add should have part to insert inside these holes, the angle between each holes should be enough to maintain the clip on the arm.
So my todolist for now is:
- Review the design to prevent collision with the extruder when reaching high Z value
- Improve robustness of the rear top angle, which is a bit fragile for now. holding the weigh of my LED ramp is ok, but when putting in place the holder seems quite fragile in this area.
- Design a clip for ikea Dioder holding the 4 LED ramps.
- Provide a clip template so that any specific LED ramp could be easily adapted.
So, what do you think of this approach ? Any feedbacks are welcome !
I'm like Jon Snow, I know nothing.
Re: Generic LED ramp holder
Hi
Well, now that my OctoPrint box is fully working, I must admit that this concept is not the right one to have a side webcam. The extruder is putting way too much shadow. I'm considering a side holder right now.
So the conclusion of the Proof of Concept regarding the objectives:
- Provide good amount of light on the print area so that a side webcam will have a good level of light..
----> Failed. Probably not doable with this type of design, even with wide source of light.
- As generic as possible, should hold my specific LED ramp, but should easily hold other types by adding adaptators if necessary instead of modifying the design.
----> Ok
- No impact on printing area size.
----> Half failed, Some impact but limited to extreme top side corner, which is rare area of printing.
- Ability to tweak the angle of the light. I just so hate to have LED light in the eyes while seating on my desk.
----> Ok
- Make it printable on the prusa, of course ! So the length should stay slightly below 200 mm
----> Ok
- Optimize amount of filament needed (not sure how to do that).
----> (Insert "I have no idea what I'm doing" gif 😉 )
However, to have a global light on the printer, it's doing the job, so I published the stl files on Thingiverse here: http://www.thingiverse.com/thing:1418815
I'm like Jon Snow, I know nothing.
Re: Generic LED ramp holder
It is definitely a good start, and I am designing a light holder myself with a different approach( we'll see how that turns out) I am curious if you drew power directly from the rambo, and if so what pins. I do look forward to seeing your design evolve.
Re: Generic LED ramp holder
Constantine
It is not a good idea to draw power from the RAMBo directly as there is not much overhead with the fuses.
Best to draw 12 Volts from the PSU (which does have a few amps to spare) and use a buck regulator if less than 12V is required.
Peter
Please note: I do not have any affiliation with Prusa Research. Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage…
Re: Generic LED ramp holder
Hi,
the LED ramp I'm using is directly wired to 220 V, it's a kitchen LED Ramp. However, I do not plan to manage it from the Rambo itself, and do not care to have an additional plug. and I'm thinking about using a relay managed by the octoprint, using gpio on the banana pi (or any Raspberry).
In the same approach in later future I'l have a look how to hack the Ikea Dioder in order to have different colors depending of the printing phase, for example red for heat-up, white for printing, green for cooldown and blue for ready, not a must-have but a really cool nice-to-have 😉 This should be managed by the octoprint box as well.
Regarding this design approach I tried several modification but none were satisfying. Trying to increase the height make just the thing ugly.
I already made some modification to increase the height, but the result is so ugly that I stopped this approach. The best way for top light holder is probably to put hem closer to the side, out of the X-axis travel path, there I'll modify it to be able to have adapters to clip on it.
Regarding side led holder it should be done by modifying bottom and top Z-axis holder to make them support an additional structure. Since I will have to disassemble my printer for that, I take my time to think about it.
I'm like Jon Snow, I know nothing.
Re: Generic LED ramp holder
Hi,
finally I made the second version.
There is no more printable area reduction I changed a bit the position so that there is no more collision possible with the extruder, and it's high enough to let printed object go below.
I made the adaptor system I was thinking about. It's a clips system starting with a DIODER adaptor:
I continue to use my kitchen LED ramp, but I tested the Ikea DIODER LEds. They're a bit short, but adding the provided plugs, it just add the needed additional length:
I provide also a template to ease customisation.
Everything is available here: http://www.thingiverse.com/thing:1506126
I'm like Jon Snow, I know nothing.
Re: Generic LED ramp holder
HI there.. Before opening a new thread I found out this nice one that can maybe work for my purpose.
I was wondering if is safe to connect in parallel to the 12v line of the psu to the board a 12v led strip like the one on this thingiverse?
https://www.thingiverse.com/thing:1615578
Just to avoid having another plug and another ac/dc converter..
Re: Generic LED ramp holder
If you take the plastic end part off the PSU, you will find additional output connectors.
You should be able to take enough power to run the LEDs from that.
Peter
Please note: I do not have any affiliation with Prusa Research. Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage…
Re: Generic LED ramp holder
I sooo must have these in my life. BUT that now means a trip to Ikea and I just know I will have to take the Mrs. That now means I will not just be buying some led lights 👿
I will probably go for the colour changing ones just so I can have them change at xmas 😆 I wonder how long they will last in the hot enclosure. 😕
Re: Generic LED ramp holder
If you take the plastic end part off the PSU, you will find additional output connectors.
You should be able to take enough power to run the LEDs from that.
Peter
Nice one. I just need to check what kind of connectors I need then. And add a switch. I assume i will void the warranty on the PSU if i do that XD
Re: Generic LED ramp holder
I assume i will void the warranty on the PSU if i do that XD
I don't think so. You're not doing modifications of PSU itself. That plastic cover is additional printed part by PR and basically it is not part of PSU. Just watch your own safety.
Re: Generic LED ramp holder
One of my complaints about the I3 frame is there are no accessory holes along the top.
They would be useful for hard-mounting something like these light holders.
Or a decent spool holder.
Or a Raspberry Pi.
Or the LCD/SDCard/jog dial holder.
Or a wiring holder in case you want to route the wires up and over instead of across/along the threaded rods (ew!).
That top bridge is dead space that could be reclaimed.
What we *do* get along that top bridge is the decorative Prusa logo. Which to my knowledge serves no significant functional purpose.
You'll naturally get mounting options if you build a frame out of extrusion of course.
Re: Generic LED ramp holder
Hi,
finally I made the second version.
Love the new design. Thanks for sharing Cristophe.
Re: Generic LED ramp holder
One of my complaints about the I3 frame is there are no accessory holes along the top
You've got an electric drill, haven't you? 😉 😆