How to disassemble a Neato Botvac

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How to disassemble a Neato Botvac

Postby vic7767 » May 9th, 2014, 10:16 pm

Here is a link to a youtube video for taking your Botvac apart.

http://www.youtube.com/embed/PQg0CTiWReE
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Re: How to disassemble a Neato Botvac

Postby vic7767 » May 10th, 2014, 11:33 pm

Fixed the youtube video, it seems that half way through the previous video it started over again.

http://www.youtube.com/embed/PQg0CTiWReE
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Re: How to disassemble a Neato Botvac

Postby chris-s » December 18th, 2014, 5:14 am

Hi Vic !

Nice video ;)
Do you know where is located the magnetic sensor for boundary marker detection ?
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Re: How to disassemble a Neato Botvac

Postby glnc222 » December 18th, 2014, 4:16 pm

[edit] Torx long shank drivers needed
A set of long thin shank torx/star screw drivers needed, though only T10 to open the case, others for inside.
http://www.amazon.com/gp/product/B002T5O5LO?psc=1&redirect=true&ref_=oh_aui_search_detailpage
Outside of U.S. I think is on Aliexpress for cheaper shipping.
The security bits have holes in the center for a pin, work on regular as well.

where is located the magnetic sensor for boundary marker detection ?

Likely inside the square protrusions through holes in the brush guard -- not just clips. Similar squares exist on the XV.
They must be close to the floor. Run the Neato Control program and move some marker around underneath to see response.
Last edited by glnc222 on January 11th, 2016, 12:52 am, edited 1 time in total.
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Re: How to disassemble a Neato Botvac

Postby Medtech » December 27th, 2014, 1:10 pm

magnetic sensors are projections as said glnc222. can be seen in the accompanying photographs.
IMG_2936-30.JPG

IMG_2977-30.JPG

IMG_2978-30.JPG

IMG_2990-30.JPG

IMG_2991-30.JPG
Thank you GOOGLE translator for the freedom of communication.
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Re: How to disassemble a Neato Botvac

Postby chris-s » December 27th, 2014, 5:13 pm

Thanks glnc222 and Medtech for the pictures !
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Re: How to disassemble a Neato Botvac

Postby glnc222 » January 10th, 2015, 12:56 am

See also: Inside the Botvac Brush Module http://www.robotreviews.com/chat/viewtopic.php?f=20&t=17842

Torx Screws in Botvac

The Botvac uses Torx (star) head screws instead of phillips head screws on XV. Torx screws were made to apply higher torque with better grip (hence the name), which is oddly wrong in a way for self threading, sheet metal screws into soft plastic. When seating those screws with an electric driver, more torque could be applied with more risk of stripping threads. A manual driver may be in order or equivalent handling technique.

Screws on the XV varied oddly from loose to very tight and hard to turn.
Last edited by glnc222 on October 19th, 2015, 12:17 am, edited 1 time in total.
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Re: How to disassemble a Neato Botvac

Postby glnc222 » January 27th, 2015, 12:14 am

Summary of Steps in Video
http://www.youtube.com/embed/PQg0CTiWReE
and front bumper removal technique https://www.youtube.com/watch?v=vwcTcr0Wpwo&feature=youtu.be

(after removing dust bin, battery, and pulling off bumper)
To remove the bumper pull away sideways at the rear of one side to release the catch, then pull that side forward clear of the case. The other side falls off then. When installing, slide straight on pressing the top edge down to keep level.
[edit] Needs long thin T10 Torx/Star screw driver (round; hexagonal too thick). Least expensive bit set http://www.amazon.com/gp/product/B002T5O5LO/ref=oh_aui_detailpage_o06_s00?ie=UTF8&psc=1
or single hand tool http://www.ebay.com/itm/Hot-Deluxe-Security-Tamper-Proof-Torx-Tool-T10-Screwdriver-/310909084459?pt=LH_DefaultDomain_0&hash=item4863a0232b (in some hardware stores). 10 screws...

Photos by Vic7767 marked:
V1toptorxscrews.jpg

V2EightBottomScrews.jpg

V3frontcovertabs.jpg

V4LCDcable.jpg

LCD cable: Standard header plug. May require prying up the ends with a small screw driver.

V5releaseSprings.jpg

(suspension springs need removal only when removing the vacuum tray holding the drive wheel assemblies, below)

V6removelidar.jpg

V7rearFrameTabs.jpg

V8removeFrame.jpg

V9driveAssembly.jpg
Last edited by glnc222 on October 17th, 2015, 6:49 pm, edited 2 times in total.
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Re: How to disassemble a Neato Botvac

Postby chris-s » October 16th, 2015, 2:33 pm

Hi !

I need to replace my botvac bumper sensors.
Do you know if they are the same as XV series ?

I can only find XV sensors on eBay.

EDIT : it seems that we should remove the motherboard before replacing bumper sensors... right ?
Is is easy to do this ?
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Re: How to disassemble a Neato Botvac

Postby glnc222 » October 16th, 2015, 3:24 pm

Unlike the XV models, the system board is held by simple clips and is easier to remove. It may not be necessary to unplug cables. You might photograph the top for reference where plugs go.

Botvac switches different than XV model as I remember it. The Botvac bumper tact switch assembly is shown disassembled with cleaning of internal contacts at http://www.robotreviews.com/chat/viewtopic.php?p=132317#p132317
Image
Bumper Tact Switch Assembly

It may be a custom made part and can be disassembled and cleaned in a way the packaged switches sold are not usually handled. it is a standard type of dome tact switch but the stem supplied may be different. A standard switch might be adapted to the assembly in various ways with washers or similar things. It is a matter of what stem is supplied on the switch and how the spring is fitted to it. Different sizes of tact switches are listed on ebay.
This one has the same square stem (exact dimensions need to be checked) TC-1212T
http://www.ebay.com/itm/50PCS-TC-1212T-12x12x7-3-mm-Tact-Tactile-Push-Button-Momentary-SMD-PCB-Switch-/171907322284?hash=item28067991ac:g:erkAAOxykMpTG9jx
ebayswitch.jpg

The square stems are made for matching control panel button caps. Round stems are used as the buttons themselves. I think XV had round stems.

[edit]
Digi-Key part http://www.digikey.com/product-detail/en/B3F-5050/SW801-ND/368377
Mfg Omron B3F-5050. Plunger style.
Compare to Omron B3W-4055 http://www.digikey.com/product-detail/en/B3W-4055/SW838-ND/368406
Omron B3W-4050 http://www.digikey.com/product-detail/en/B3W-4050/SW422-ND/27980
different actuating forces, durability. Huge variety in electronics components.

[edit] Measured activation force 170gm (6 oz) with postal scale. Board size 11.8mm x 21.4mm. XV model larger. 1.3mm thick similar 1.4mm hobby perfboard. You can make your own board for the new switch instead of dismounting the old switch.

[edit] You can mount new switches on your perfboard instead of repairing the old, and you can even find wired cables for the system board connection on ebay under "JST PH-2" (2mm pitch I am assuming same on Botvac as XV). The wired connectors are convenient compared to an expensive spool of wire and tedious pin assembly.
Last edited by glnc222 on October 18th, 2015, 7:36 pm, edited 4 times in total.
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Re: How to disassemble a Neato Botvac

Postby glnc222 » October 16th, 2015, 3:52 pm

Bumper switch photos added above after initial post.
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Re: How to disassemble a Neato Botvac

Postby chris-s » October 16th, 2015, 3:55 pm

Thanks, but do to know if XV sensors are the same ?
Chris, FRANCE
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Re: How to disassemble a Neato Botvac

Postby chris-s » October 16th, 2015, 4:03 pm

Thanks for updating your post.
I think I will order 50pcs tact switch.
Here is the link of XV sensors : http://www.ebay.fr/itm/Neato-4-bumper-s ... SwPYZU3AnN
According to the picture, looks like they are the same.
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Re: How to disassemble a Neato Botvac

Postby glnc222 » October 16th, 2015, 4:22 pm

The XV assemblies are bought for the elaborate cable harness and plugs for the system board. The plugs are JST types at Digi-Key. Botvac has simpler cabling.
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Re: How to disassemble a Neato Botvac

Postby chris-s » October 17th, 2015, 11:19 am

Thanks ! I will order tact switchs and replace manually then.
Chris, FRANCE
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Re: How to disassemble a Neato Botvac

Postby glnc222 » October 17th, 2015, 1:48 pm

Bumper switch possibilities at Digi-Key 12x12x3mm
Digi-Key part http://www.digikey.com/product-detail/en/B3F-5050/SW801-ND/368377
Mfg Omron B3F-5050. Plunger style.
Omron B3W-4050 http://www.digikey.com/product-detail/en/B3W-4050/SW422-ND/27980
different actuating forces, durability. Huge variety in electronics components.
Use 5050, 4050 130gm 0.3 travel, light touch.
5050 harder to find ebay etc. Aliexpress good.

[edit] cable and connector for system board http://www.aliexpress.com/item/10-Sets-Micro-JST-2-0-PH-2-Pin-Connector-plug-with-Wires-Cables-150MM-AA2084/32466836980.html
IC puller tweezers sometimes useful for pulling out tight plugs on system board
http://www.amazon.com/gp/product/B0002JEZ2I?keywords=IC%20puller&qid=1445301715&ref_=sr_1_1&sr=8-1

Standard 1/10 in. spacing prototyping perfboard, cuts with hack saws, small piece can replace original. Or just replace switch on original board.
Last edited by glnc222 on July 31st, 2016, 9:45 pm, edited 4 times in total.
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Re: How to disassemble a Neato Botvac

Postby glnc222 » October 17th, 2015, 4:56 pm

Measured activation force 170gm (6 oz) with postal scale. Board size 11.8mm x 21.4mm. XV model larger. 1.3mm thick similar 1.4mm hobby perfboard. You can make your own board for the new switch instead of dismounting the old switch.
bumpswitch.JPG
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Re: How to disassemble a Neato Botvac

Postby glnc222 » October 17th, 2015, 9:42 pm

Lidar mounting screws: the right front corner screw is a phillips head through a 3/8" metal tube spacer, compared to T10 screws on the other corners. Anyone know what that spacer is for?
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Re: How to disassemble a Neato Botvac

Postby glnc222 » November 8th, 2015, 5:15 pm

Completed replacement bumper switch assemblies (French) http://www.kelrobot.fr/forum/capteurs-de-pare-choc-botvac-t3303.html#p16877. Replacement switches, boards, and cables available.
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Re: How to disassemble a Neato Botvac

Postby Brett » November 9th, 2015, 2:13 am

glnc222 wrote:Lidar mounting screws: the right front corner screw is a phillips head through a 3/8" metal tube spacer, compared to T10 screws on the other corners. Anyone know what that spacer is for?

I've had two Botvacs in for LIDAR drive issues over the last few days, and both had 4xT10s?

Is yours a Botvac D?

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