Word of Warning:
For those of you making your own body screens, please read.
I thought about a potential issue. If the heater module shell, and the center pin, touch the body screen at the same time, the electrical path WILL choose the screen over the Nichrome.. and it will instantaneously melt your screen. The screen material will melt within' a fraction of a second, and then the connection is broken. So it's not really a safety issue... but it's an issue non-the-less.
The "ridge" that the screen sits on, is about 1mm above the heater module shell. So.. if the screen is properly made, and seated correctly. This should never happen.
BUT, if the screen were improperly placed into the body, on an angle maybe.. and if it was domed so much as to make contact with the center post... then I could see this happening.
So just be aware of this, until I send out proper screens.
Have any of you guys noticed the heater module sticking once it warms up after a session.
It doesn’t get stuck but the heat expansion definitely is in effect.
Once it cools down it slips right out.
I’m not complaining just curious if anyone else has noticed it.
This is definitely a tolerance issue. I was riding a fine line between a fit that felt perfect... and one that wouldn't allow for the shrinkage/expansion of the wood when it goes through the initial break in period.
Most of the dimensional changes in the wood happen in the first few weeks of use.. and it can be tough to troubleshoot this before sending them out. And every block of wood is different in this regard.
SO! What's the solution? Well, I did test for this, and experienced the issue in my testing. The solution is to take a piece of fine sandpaper wrapped around a pen, so it fits into the heater module hole just barely snug, but not so snug that you can't twist it. Then just twist it a few times, for maybe 10 seconds or so.
This will open the hole up a fraction of a millimeter, but it's all that it takes. And you should be good to go. This is a permanent fix, and after the break in period, the wood settles out and doesn't move so much anymore.
I also seem to be having a few issues with the button and making contact. It seems quite sporadic and doesn’t always seem to make a decent connection. Or maybe I’m not pressing hard enough, but it hurts my thumb I’m pressing so hard sometimes.
When holding the button and looking down through the intake sometimes it glows red almost instantly other times nothing happens or takes a time for it to get glowing. I’m not sure if this is user error or a problem with the connection. I have taken the button out and cleaned the contact pad and contact point on the button with iso and still having the issue.
@Dan Morrison I did notice a small ridge to the rear of the brass button housing. Is this meant to be machined flat or is that small ridge supposed to be there? Regarding button stiffness I have also adjusted the thumbscrew to hopefully help.
Would it be possible to get some sort of tutorial for servicing the Nomad please. Hopefully I put the spring and spring insert back together in the correct orientation
If you hear a 'static' 'hissing' 'arcing' sound coming from the button area, and the bronze back plate heats up, then you are definitely experiencing a connection issue in the button.
If this happens once, the connection will arc, the arc deposits residue on the contact, and this residue will make the problem worse and worse. So if it happens once, it's best to clean it right away.
Fortunately this problem is rare, I only clean my button about twice a year.
It sounds like, possibly, the initial getting-used-to the button press period has caused an arc, most likely from not pressing the button down all the way. And that's what started the chain effect.
The 'ridge' on the back of the button, is normal. That ridge is what makes electrical contact. It's better to make contact on a pointed ridge, than a flat surface. Less change of dust getting trapped between the two surfaces.
For cleaning, ISO will not remove the tarnish that is causing the poor connection. Use a pencil eraser. It contains a fine abrasive that will shine the brass right up. You should clean the inside of the bronze back plate, and the back of the brass button. Also. While you're at it... make sure I didn't miss a burr on the top of the brass button.. where the screw thread is cut. If your button feels tight...could be a burr there. But I'm fairly certain I wouldn't have missed that.
I might be able to get some custom springs made for the buttons... that way it could be easier for everyone to press. I tested many springs.. and decided to go for one that leaned on the safe side... one that was difficult to accidentally press in your pocket.. but not so stiff as to be hard to use. But of course everyone is different, so maybe customizing spring pressure would be a good thing.
I am currently working on the usage/care tutorial. Hang tight!
I'm going to try my best to get these initial hiccups ironed out for everyone, I know that they are easily solved.. and have back-up plans for sure fixes if the issue crops up again. Thank you, brave pioneers, for sharing your experiences!
I've already got a nice list of things that will be improved for the next batch.. I'm sure it'll keep growing. heh.