Revo Portable

[Shantelle Wenske]

Improveyour paint shop efficiency without having to overhaul your space with REVO Accelerated Curing Systems from Global Finishing Solutions. The revolutionary technology cures filler and coatings quickly from the inside out, offering the fastest curing time in the industry for both prep and paint processes.

The Ultra XR Closed-Top Open-Front (CTOF) is an end-to-end prep, paint and curing environment. By integrating REVO Systems into this versatile finishing environment, vehicles can be filled, primed, sealed, painted and rapidly cured in one location.

Curing time for both prep and paint phases of repair can be reduced by hours, freeing up your technicians to complete additional repairs. There is no need to add accelerators to speed curing time; the fast dry time and complete cure from electric infrared curing technology delivers high quality results that reduce the need for rework.

Electric infrared energy costs are a fraction of the energy costs to run a conventional system. REVO Systems take just a fraction of a second to heat up and are ready to cure a repair immediately. Cool down is also very quick so the systems can be turned on only when needed and are safe to handle shortly after shutdown.

REVO Systems deliver consistent, controlled heat. Temperature is precisely regulated by easy-to-operate controls. With short wave infrared curing technology, the drying energy is concentrated on only the panels needing repair and penetrates multiple layers of coatings to heat the substrate beneath. REVO Systems consistently cure primer, sealer and paint.

Many aspects of paint booth technology have evolved to reduce energy consumption, while also contributing to a more efficient paint environment. Not only do these technologies reduce the environmental impact of operating a paint shop, but they also lead to a cleaner, brighter and more productive operation. In hopes of helping protect the environment, GFS has identified six pieces and components of finishing equipment that contribute to sustainable growth in your shop.

With more than 100 vehicles awaiting repair at any time and a shop expansion in the works, Cranston Collision needed equipment that would increase production and deliver the high-quality finishes their customers have come to expect. A pair of Ultra XR Paint Booths from GFS and local distributor Collision Center Design has given Dennis Gamba the tools to help Cranston Collision discover their full potential.

I was doing assembling my MK3S+ extruder area and I reached part where I have to remove the hotend to check condition of PTFE. I thought "wait a minute, is MMU compatible with Revo Six?" So, I googled it and I read many complaints about MMU2 and Revo issues - mostly about long thin thread of filament during filament change. And I also heard that E3D haven't tested if works with MMU series.

Make sure your Revo Six heating element is good, mine was unable to pass Thermal Model Cal and I had a couple high thermal alarms. Even noticed a few times after filament swaps the temp was way off, too low, too high. Since replacing my heating element it's been rock solid, extruder holds temp amazingly well now.

Other observation . . . I'm running MK3S+ with Revo Six & MMU3, my firmware is 3.13.1 & 3.3.0 with Prusa Slicer 2.60 & 2.61. My preferred filament is Prusament PETG, Hatchbox PETG and Amazon Basics PETG. Initially I did have some odd prints and stringing, especially my wiping blocks, very ugly. I noticed the Prusa Slicer filament profiles were "off" compared to the non-MMU filament profiles. Meaning if you choose the stand-alone MK3S / MK3S+ machine profile versus the MK3S / MK3S+ MMU3 machine profile. I found this odd, that different machine profiles had their own filament profiles, I thought it was a single database in Prusa Slicer.

@Mykal451 Thank you for the detail information. When you mentioned the firmware, I remembered that I had to rollback to 3.11 which is only stability version for Revo. But I did read somewhere about Thermal Model Calibration errors (which I haven't experienced) that encouraged me to rollback to 3.11 from 3.13.

Keep in mind, even when you flash the revo-specific firmware, it may still not work with the Thermal Model Cal. This is due to previous EEPROM values being stored that are too different than what needs to be used, so it errors out before it can even begin the test.

This will result in resetting everything (including sheet profiles/Live-Z settings). If you really want to avoid this and have the ability to terminal into the printer, you can follow steps 5-16 of these directions. This will essentially bypass the checks and manually perform the new TM cal.

I will say, finally being able to make the switch to the 3.13 firmware and use the MMU with the 3.0.x firmware... it's a completely different beast. Still working through all the usual kinks -- I'm still using a (heavily modified) MMU2S. The new loading routine of the 3.0.x firmware definitely improves things by an order of magnitude (seriously... it's crazy watching it now compared to the normal eternal grinding routine from before).

As far as the revo side is concerned the only thing I'm still working through is a few failed loads due to tip formation still. I used capricorn XS for the hotend PTFE insert, which I thought would be close enough for the inner diameter, but I went ahead and picked up some replacement MK3S+/MMU specific PTFE inserts from the prusa shop due to apparently having an even tighter tolerance at 1.85mm. We'll see how that goes.

Thank you for taking your time to explain everything... I spent few days trying to decide what to do next - should I wait till I get my MK4 upgrade kit and then get a MMU3 upgrade for MK4 or wait for E3D people to give data report to Prusa (per recent blog: Meanwhile, we were waiting for E3D to deliver us their official data. E3D needed to check various batches of their Revo extruders to find the edge values, so we could see what is the range for various parameters. Once we obtained these values, we could finally make the last step: compiling everything into the firmware file.)

That statement about waiting for E3D data was in reference to the 3.12.x firmware when they initially implemented the Thermal Model. They have that data now, and that's why there's specific builds for revo starting with the 3.13.x firmwares (see the write-up about this in the 3.13.0 release notes).

That's the whole point of all this -- the new Revo-specific firmware does work now. The process of getting it working requires the reset of the EEPROM values though, which is why it's required to either do the full factory reset, or go through the steps to bypass the internal checks to perform the TM calibration.

I installed the Revo six in a final attempt to try *anything* to make the MMU2s work. I removed the MMU2 entirely and my Revo-six hotend printer has been working flawlessly on 3.11 and I haven't felt the need to update it. Now that my MMU3 upgrade is on its way (well, three weeks from three weeks from three weeks from now it will be) and while printing the plastic parts for the MMU3 I figured I'd look around to see if there was anything else I needed to do to get my printer ready and now I see this. So thank you, both of you, for the heads-up, you saved me from future frustration.

ohhh Sorry, I translated something here and misunderstood it. I had read the post with the slicer profiles and then the .hex were posted. That's why I thought they were for the slicer, even though I've never heard of a hex import.So.... For the Revo Six I have to take the appropriate FW (temperature and printer) from the zip, the standard FW on Prusa on the page is incompatible? Unfortunately, it doesn't say anywhere on Prusa that the firmware offered there doesn't support Revo Six and you have to download the appropriate one from Github. it stands. nowhere that there is an independent file since 3.13.0. This will then solve my problem.

@JMH714 so yes, Slicer has the firmware flashing tool built in, which is just a convenience, nothing to do with slicing models. The hex files are for the printer and the MMU. But read the post by @carlmmii above (9/21/2023) where he mentions the factory reset, load the new hex file, run the pid tuning in the LCD menu, etc.

PID calibration and Thermal Model: I decided to redo the REVO calibration because I started to get THERMAL RUNAWAY.

I run the PID calibration (it took around 20 minutes, even if it seems doing almost nothing).

But then with the MMU3 I was not able to run the Thermal Model calibration. I just got a beep and "Print aborted" message.The secret receipt was to DISABLE THE MMU from the setting panel, perform the calibration, and then re-enable the MMU3.

MMU3 secret mode : it DOES NOT EXIST ANY MORE on the new FIRMWAREI need to increase a little the filament length from the MMU3 to the extruder gears. In the past on the MMU2 I used the secret mode to tune the filament length, but now it is not possible any more. After contacting PRUSA they told me to use the new firmware register and issue the new GCODE command M708.

So issuing the command M708 A0x22 X350 it will set the length of the filament (equal to the PTFE tube)

If you need more filament to better engage the gears, just issueM708 A0x22 X360that is 36cm instead of the standard 35. However it is not so easy.

- The command should be sent in serial mode, by connecting the MK3S to a PC through the serial USB.

- Pronterface could not be used since it the command is case sensitive and Pronterface converts all in uppercase.

- I used Linux and Putty to connect to the MK3S.

- The new MK3S FW handles the new MMU3 handshake, so when you connect to the MK3S, you are overflowed by tons of serial events messages that make really difficult to issue any command.

To make the story short and avoid further details, at the end I was able to set the new filament length.

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