Onoff
In the land of the unfinished project I am King!
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Agroshield
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It might be worth looking into how the multi-battery tools work viz-a-viz load sharing between batteries and battery protection. It is obvious and easy with a single battery, maybe less so with more than one.
Makita give you exploded diagrams for all their tools so studying one of those might be a good place to start.
Onoff
In the land of the unfinished project I am King!
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I'm more of the "...I'll risk killing a £20 Makita clone battery if it works rather than looking at the issue too deeply" school!
Onoff
In the land of the unfinished project I am King!
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I really need to draw myself a 3D AutoCAD model of the Makita section of the adapter.
At the moment my lad has it as a .STL(downloaded originally from Yeggi etc) and he works on it in Fusion 360. As I understand it it's a "mesh".
When he mods it it seems a damned sight harder than I could do it in AutoCAD. Case in point below I had him fill in corner holes on the original - they're not perfect. The top "skin" pretty much covers this but it bugs me it's not perfect.
He does too have a tendency to move bits around to "near enough" whereas I'm all for snapping to midpoint, quadrants, ends of lines etc. I'm getting more anal the older I get like Mr Meldrew!
At the moment my lad has it as a .STL(downloaded originally from Yeggi etc) and he works on it in Fusion 360. As I understand it it's a "mesh".
When he mods it it seems a damned sight harder than I could do it in AutoCAD. Case in point below I had him fill in corner holes on the original - they're not perfect. The top "skin" pretty much covers this but it bugs me it's not perfect.
He does too have a tendency to move bits around to "near enough" whereas I'm all for snapping to midpoint, quadrants, ends of lines etc. I'm getting more anal the older I get like Mr Meldrew!
Onoff
In the land of the unfinished project I am King!
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I beg to differ!
All three tools here are Makita. The yellow based one is my 18V impact gun with 3 prongs. Other 2 are older drills, 2 prongs only. Maybe it doesn't go anywhere in the tool?
On the clone batteries the 3rd pin is marked "TH".
This Yeggi link is interesting. Details a little voltage / battery condition meter that can built into the adapter:
https://www.thingiverse.com/thing:1270617
hotponyshoes
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How do you get the extra infill around the screw holes?
Is this just something you draw into the design (so extra ribs rather than a solid bit) or is this something you can set the slicer software to do?
Onoff
In the land of the unfinished project I am King!
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Thinking maybe build something like this into the back of the adapters:
https://www.ebay.co.uk/itm/12-24-36...hash=item41f66b4b7f:m:mpk5b5Ky7lES9qWx08MKAjQ
https://www.ebay.co.uk/itm/12-24-36...hash=item41f66b4b7f:m:mpk5b5Ky7lES9qWx08MKAjQ
Onoff
In the land of the unfinished project I am King!
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Done in Cura. Make a cube, cylinder, shape etc in CAD software slightly bigger than the area you want. Save that as an STL. Open Cura, import the main model and the cube etc. Click on the "cube" go to Per Model Settings, click Modify Settings For Overlaps. "Cube" should go transparent. Click Select Settings. Tick Infill Density. Change to desired infill on the left. Drag cube over the section of the main model you want to change the infill on. Slice it the use the slider on the right to check that the infill is different.
Onoff
In the land of the unfinished project I am King!
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And so to the battery connectors!
All I could find in the way of Zintec (without looking too hard) was some galvanised trunking lid. Think it's about 1mm. I'd measure it but both Verniers are in the truck and I can't face going and getting them then disinfecting them as I have been doing with everything when I get in from site!
Held it in mole grips and cut freehand with the 115mm grinder and 1mm slitting discs. Bent in the vice. (Complete with marks!)
Connectors in:
10mm left sticking up for spade connectors to go onto:
Tomorrow's job along with opening the grinder up and soldering leads on. Beer o'clock now.
All I could find in the way of Zintec (without looking too hard) was some galvanised trunking lid. Think it's about 1mm. I'd measure it but both Verniers are in the truck and I can't face going and getting them then disinfecting them as I have been doing with everything when I get in from site!
Held it in mole grips and cut freehand with the 115mm grinder and 1mm slitting discs. Bent in the vice. (Complete with marks!)
Connectors in:
10mm left sticking up for spade connectors to go onto:
Tomorrow's job along with opening the grinder up and soldering leads on. Beer o'clock now.
Agroshield
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OK, sorry. I do not know why I wrote that. I should have stopped at saying the six pin connector is not connected.
The two older ones are pre-star and of the era where Makita had a problem with the batteries. They then changed to the yellow connector with the star.
I did find this (http://makita18vmod.blogspot.com/2013/07/getting-modified-batteries-to-work-on.html) which says that the sensor in the battery switches the third pin and then the tool will not operate when it sees no voltage on that pin.
That seems to imply (contrary to what I originally said) that the two main pins stay live all the time. Thus if you just draw from them without monitoring the third pin, you will kill the battery.
It makes sense as for the battery to switch the main supply would need a high power MOSFET in the battery, whereas the tool already has high power switching capability inside it.
You might be able to put a very low power LED between the third pin and earth and when it goes off, stop using the tool.
Onoff
In the land of the unfinished project I am King!
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Following on from my post at 1:48PM today. As I say I'm looking for something suitable to fit into the back of the adapter like this. I don't want it on all the time just when I press a button. Any thoughts? Cheers.
https://www.ebay.co.uk/itm/Multi-fu...hash=item2cbfc7260b:m:mMjWJFShSl5-f820H0vMPzg
Agroshield
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The one you link to from horizon_electronic seems to do what you want where it says "Special Function Setting (requires electric iron, you must power off setting, electric iron must be grounded)". Presumably soldering iron, not shirt-pressing device.
The second (motorhouse) seems to have a 'go to sleep after 10 seconds mode' (where it says 'Function and setting' and has a green L03), settable by pressing some buttons.
When browsing these, these ones (item 192219060095 and 283455551188) came up and very cheap. I think you would need a 5S for 18v. You would need to put a momentary switch in series with it.
The second (motorhouse) seems to have a 'go to sleep after 10 seconds mode' (where it says 'Function and setting' and has a green L03), settable by pressing some buttons.
When browsing these, these ones (item 192219060095 and 283455551188) came up and very cheap. I think you would need a 5S for 18v. You would need to put a momentary switch in series with it.
Onoff
In the land of the unfinished project I am King!
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Ta. Nothing comes up for item 283455551188?
Agroshield
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Strange. Same for me. It came up in the 'similar sponsored listings' box under the first one. It does exist; look for a seller rola77. Also similar items by seller winwin-eshop. All the same thing, just multiple sellers. Some of the others are not listing the 5S which is for 18v packs.
Onoff
In the land of the unfinished project I am King!
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Any chance of posting a direct link to that "rola77", I can't find it. Cheers
Agroshield
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I have just struggled to refind it. I think I have now succeeded. The secret is to put the numbers into ebay.com and not ebay.co.uk
Put 'lithium battery meter 5s' into eBay.com for some other options. There's PCB-mounted versions where you just have to leave holes for the LEDs to see through. This one, the only one of its type I could see, (254252347234) has a longer stalk on the switch which might help with mounting.
Onoff
In the land of the unfinished project I am King!
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Well, the Makita to Rolson 18V Adapter 3D printed project has exceeded expectations!
Now there is we think an option to put female 1/4" spade connectors straight onto the spring connectors up inside these existing old tools to save taking them apart but that would be too easy! Instead I went for disassembly, clean and soldering new wires straight onto the motor and switch. Bit of a pita taking the grinder apart of course as to take the case apart you have to take the head off to get to 2 of the screws.
Gave everything around the motor a blast of contact cleaner whilst I was in there:
Some old HO7RNF gave up some wire for the new leads:
All soldered on:
Blue crimps a nice tight fit onto the fabricated battery connectors:
First switch on video, SUCCESS!
https://www.flickr.com/photos/122042403@N05/49734751431/in/dateposted-public/
I'm using it now on the mower deck. It's got some grunt, not far off the corded one. 3Ah clone batteries. I'm being over cautious at the mo, just swapping them when I feel they might be slacking a bit:
Circular saw is next up (best I sort the mower first or risk SWMBO's wrath)!
Now there is we think an option to put female 1/4" spade connectors straight onto the spring connectors up inside these existing old tools to save taking them apart but that would be too easy! Instead I went for disassembly, clean and soldering new wires straight onto the motor and switch. Bit of a pita taking the grinder apart of course as to take the case apart you have to take the head off to get to 2 of the screws.
Gave everything around the motor a blast of contact cleaner whilst I was in there:
Some old HO7RNF gave up some wire for the new leads:
All soldered on:
Blue crimps a nice tight fit onto the fabricated battery connectors:
First switch on video, SUCCESS!
https://www.flickr.com/photos/122042403@N05/49734751431/in/dateposted-public/
I'm using it now on the mower deck. It's got some grunt, not far off the corded one. 3Ah clone batteries. I'm being over cautious at the mo, just swapping them when I feel they might be slacking a bit:
Circular saw is next up (best I sort the mower first or risk SWMBO's wrath)!
