Upgrade you Tevo Little Monster - Pro Addition

Little Monster hardware issues, upgrades and configurations
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Redemptioner
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Upgrade you Tevo Little Monster - Pro Addition

Post by Redemptioner » Sun Feb 04, 2018 11:03 pm

This coming weeks I will be posting up all the detail and the items needed to bring your Tevo Little Monster up to a PRO level. These upgrades and modifications not only significantly improve the print speed and quality it also drastically increases the the range of plastics you can print and ensure repeatable and reliable prints day in and day out.

We will be taking a detailed look at the following upgrades;
- Convert to Duet Wifi (including firmware configuration)
- Convert to Duet Panel
- Convert to lightweight, twisted and shielded wiring
- Modify controller enclosure and wiring
- Convert to genuine E3D Volcano hotend
- Convert to high quality 0.9 degree stepper motors
- Convert to Titan Extruder and 0.9 degree pancake stepper motor
- Convert to IR sensor for Z-probe
- Convert to slimline fan ducts (keep the duct/fans inside the footprint of the effector and reduce weight)
- Convert to 16 Tooth pulleys and idlers
- Modify power supply and mounting
- Add filament detector and guide (detect when out of filament and pause print)
- Add spring mounted heater bed
- Add removable heated bed plate (change beds between prints)
- Add full case enclosure
- Add localized cam
- Add web cam
- Add enclosure lighting
- Add air-scrubber and case ventilation (no more smell)
- Add controlled enclosure heating
- Add 2nd extruder and dual filament detector (for multicolored/filament printing)
- Convert to Piezo Z-probe bed leveling
If it ain't broke then modify it

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Xerxes
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Re: Upgrade you Tevo Little Monster - Pro Addition

Post by Xerxes » Fri Mar 02, 2018 8:03 pm

Looking forward to seeing all your improvements.

I'm really interested in upgrading that control board to DuetWiFi as you have suggested. Will save a lot of work if you explain your experience here.

tblanton
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Re: Upgrade you Tevo Little Monster - Pro Addition

Post by tblanton » Thu Apr 26, 2018 2:56 pm

Any update on this? Recently purchased the TLM and looking to make a few of these changes myself.

st0e
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Re: Upgrade you Tevo Little Monster - Pro Addition

Post by st0e » Sun Jun 03, 2018 8:36 am

has there been any update?
would love to hear from any upgrades and possibilities ;-)

best regards!

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Xerxes
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Re: Upgrade you Tevo Little Monster - Pro Addition

Post by Xerxes » Mon Jun 04, 2018 9:34 pm

Original Poster went AWOL. Maybe he'll reappear, in the mean-time I'll share what I'm doing.

I'm currently almost finished with an enclosure and heated chamber for the TLM (been on the back-burner for some time.) I expect this to really help the results of printing large ABS objects. From what I hear the enclosure will be enough to make a large difference, but the pro-grade solutions have 80C heated chambers, so I will also try that.

The cheapest way I found was to use corflute board on the two open rear sides and follow the profile of the bed (hex shaped blue border), and perspex on the front (in 3 pieces) for a door.

You can sandwich the corflute against the aluminium frame using 1m long 1mm thick, 20mm wide aluminium strip, drilled and held in place with "20 Series European Standard M3 Thread T-Nut" (which fits inside the channels to secure) and 10mm m3 screws. Use thread lock (loctite 222 screw lock) on the screws. Apart from the usual benefits, it really helps turn the T-nuts reliably in the channel when assembling.

At the front I used 1mm aluminium 90 degree angle (1m long, 20mm wide, 1mm thick) to secure a 7.5cm wide strip of perspex on both sides. With another 1mm 20mm wide strip on top as a washer to spread the load on the perspex from the fasteners, and to help secure the corflute fill at the top.

To the perspex 45 degree edges is a hinged perspex door 26.3 cm wide.

I used perspex shorter than 1m because it was free.. At the top I will fill the open space with a bent corflute panel.

Also moved the extruder to the side of the TLM with a bowden type setup to get the stepper out of the heat.

I will follow this up myself with some pictures and instructions as I complete and test these.

The plan for the heated chamber is a "400W 220V Insulated PTC Air Heating Element Electric Heater", with an external temperature controller, to get the chamber to 80C.. The PTC should regulate the temperature, but the temperature controller is just another layer of control, allowing warm up and lower temperatures. I've noticed a few different versions of these heaters around that look the same. This one is "insulated", if it doesn't say, assume it isn't, and the heating element is LIVE. No idea why they sell these in a version that has a live element, except to say there are no safety standards in some places ;-) The insulted version seems to be more than double the price. About $40 on banggood or ebay. I have not tested it may well not work, but I'll see how it goes!

Worth noting that 1m lengths need to be trimmed to 998mm to fit inside my printer, so keep that in mind and measure yours before you get anyone to cut materials for you. Generally you can buy 1m lengths of aluminium anyway, and file them down by hand.

Current progress:
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Last edited by Xerxes on Sun Jun 17, 2018 2:18 pm, edited 2 times in total.

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Xerxes
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Re: Upgrade you Tevo Little Monster - Pro Addition

Post by Xerxes » Mon Jun 04, 2018 9:39 pm

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Xerxes
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Re: Upgrade you Tevo Little Monster - Pro Addition

Post by Xerxes » Mon Jun 04, 2018 9:39 pm

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Geert01
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Re: Upgrade you Tevo Little Monster - Pro Addition

Post by Geert01 » Sun Jun 17, 2018 1:28 pm

That looks awesome, I'm actually in the middle of receiving all the parts required for making an enclosure myself.

I havent thought about adding a heater for the enclosure itself, how do you think the perspex will react to 80 degrees? Will it handle it without softening?

I am using polycarbonate myself as that was readily available, I wonder If i can add a heater too...

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