i confirm 1xbf
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VapeClub - Marquis RDA
- Thread starter JakesSA
- Start date
+1
+2
Quick update for the guys waiting on the bottom feed modification, there is some bad news and good news.
Bad news first, the adjustable screw at the bottom will have to go. This adjustment screw is 1.9mm in diameter (excluding thread) and drilling it at 1.3mm destroys it. Made out of silver plated copper its just to soft to handle the force exerted. Going smaller than 1.3mm will make it difficult to get the higher VG juices through and still make for a very weak screw.
Good news, the actual centre pin screw is long enough to add a a delrin spacer of +- 2mm and still catch on the centre pin. This makes the 510 connector an acceptable 4.8mm long. I also mill three quarters of the bottom 1.3mm of the centre pin away to serve as a juice outlet/drain so the centre pin hole and centre pin screw's juice outlet do not have to line up.
The prototype unit should be done and tested tonight and I may be able to ship the first few tomorrow.
Apologies for the delay on this, it has proven quite a challenge.
PS: Thx to @Alex for the suggestion!
Bad news first, the adjustable screw at the bottom will have to go. This adjustment screw is 1.9mm in diameter (excluding thread) and drilling it at 1.3mm destroys it. Made out of silver plated copper its just to soft to handle the force exerted. Going smaller than 1.3mm will make it difficult to get the higher VG juices through and still make for a very weak screw.
Good news, the actual centre pin screw is long enough to add a a delrin spacer of +- 2mm and still catch on the centre pin. This makes the 510 connector an acceptable 4.8mm long. I also mill three quarters of the bottom 1.3mm of the centre pin away to serve as a juice outlet/drain so the centre pin hole and centre pin screw's juice outlet do not have to line up.
The prototype unit should be done and tested tonight and I may be able to ship the first few tomorrow.
Apologies for the delay on this, it has proven quite a challenge.
PS: Thx to @Alex for the suggestion!
Sounds like all good news to me. Thx for all your trouble. Hoping the prototype comes through with flying colours.
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And now the Derringer has SA in its sights .. just when I get used to doing a BF mod on a certain type of attie the next one knocks on the door!
And now the Derringer has SA in its sights .. just when I get used to doing a BF mod on a certain type of attie the next one knocks on the door!
It keeps you on your toes
Right I have the prototype ready, I have some concerns with the centre post so I am going to ask @Alex if he has some time to test it for me? Please @Alex!
The full extent of the modification is pictured below with battery for scale. Since I am discarding the depth adjustment screw the centre pin screw needs to be 'extended' somewhat. This is achieved by adding an acetal spacer to the centre pin screw which is just under 2.0mm. The screw is drilled through and centre drilled to form the juice channel. The centre posts has it's bottom milled away on both sides leaving 2 independent 'pillars' to stand on. You can see these above and below the drain opening. I initially wanted to leave only one pillar so as not to interfere with the centre screw hole but the centre pin then tends to pull to the side when tightening.
Under magnification I notice that my Efest wrapping is slightly torn ..
The full extent of the modification is pictured below with battery for scale. Since I am discarding the depth adjustment screw the centre pin screw needs to be 'extended' somewhat. This is achieved by adding an acetal spacer to the centre pin screw which is just under 2.0mm. The screw is drilled through and centre drilled to form the juice channel. The centre posts has it's bottom milled away on both sides leaving 2 independent 'pillars' to stand on. You can see these above and below the drain opening. I initially wanted to leave only one pillar so as not to interfere with the centre screw hole but the centre pin then tends to pull to the side when tightening.
Under magnification I notice that my Efest wrapping is slightly torn ..
Sure thingRight I have the prototype ready, I have some concerns with the centre post so I am going to ask @Alex if he has some time to test it for me? Please @Alex!
The full extent of the modification is pictured below with battery for scale. Since I am discarding the depth adjustment screw the centre pin screw needs to be 'extended' somewhat. This is achieved by adding an acetal spacer to the centre pin screw which is just under 2.0mm. The screw is drilled through and centre drilled to form the juice channel. The centre posts has it's bottom milled away on both sides leaving 2 independent 'pillars' to stand on. You can see these above and below the drain opening. I initially wanted to leave only one pillar so as not to interfere with the centre screw hole but the centre pin then tends to pull to the side when tightening.
View attachment 20711
Under magnification I notice that my Efest wrapping is slightly torn ..
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Only thing I can think of is longitudinal slots, but I say this without seeing the center pin.
An easy solution is to leave the centre pin as is and raise the juice exit hole to above the centre pin screw's height, but that woul be +- 2.5mm above deck level which will affect the draining.
Thats it.
Yeah, I think it may work
Is the inner circle the screw and the outer circle the post?
Nope, it's just the post, sorry for my crappy drawing. The yellow sections indicate the cutouts
Biggest worry is alignment between the centre pin screw holes (its drilled straight through) and those slots. Ideally the openings should not be opposite one another so that if the one side ends up blocking the hole the other side is open. That means 3 or 5 slots .. I think.
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