I set up a 5 second timer on my phone at first. Start the timer and heat until it goes off then try a hit. No vapor? Repeat until you're getting the desired results. Thst should give you a good baseline to set a timer for until the ritual becomes rote.
Unfortunately I don't think there is a reliable visual cue to be seen. My technique is to count each partial turn of the device in my hand. I measured those once at about 1.8 to 2 per second, so the timings I've reported here are estimates based on that. What I actually do is count to like 40 for a first heat and 24 for reheats (obviously varying by device, torch, etc). Sometimes the flame glancing off turns orange, sometimes not; but I still haven't ignited a bowl in any of these devices since my first day with the Terpcicle. (Although I have almost forgotten a few times when to stop counting, and got a little closer than intended.)
A reader might think that this means they should use the torch until they get a good, solid vapor hit. Absolutely not the case with these glass TEDs since they are heat builders. If you flame it until you get a bit vapor hit, you will surely combust. You should be getting SOME vapor initially but not a lot. This is frequently mentioned in YouTube videos including this one from Dave starting at 10 minutes:
Similar here. I count the “stroke” of the flame (from up to down), as 1 second, while turning on all these glass heaters.
Which reminds me, I should make a list of timings...Timing it has always been the most consistent method for me also, with flame color being more of a backup to watch for. I used to just start a stopwatch and wait for an easy number to start on. With the preheat method though, the final heating is short enough that counting in my head works well.
Mostly unrelated, here's some vaped bud from the QC Mini. Left is one bowl, one heatup with the QC, and right is one bowl in the Vapman, finished off with a Dynavap.
Nice guide, thanks!@maremaresing I hope you are getting it figured out. As others mentioned, counting is the easiest. If you go slowly you should not combust. Just keep adding a little heat and test. The bowl preheat is really helpful and definitely watch the video
Demo video if you have purchased or are thinking of purchasing a TRWW Quartz Vape
The video will discuss all the models of Quartz Vape and give tips and tricks to getting the most out of your TRWW Quartz vape. Device capacities: Quartz Cap 14mm/Terpedo - .2g, Terpcicle - .4g, Quartz Cap 18mm - .5g, Megacicle/Quartz Cap Mega - .7g Medium to course grinds work best. Loose fill...theroguewaxworks.com
@hotmeals glad you are enjoying the QC Mini
I played around with vaping concentrates last night. A banger is easier but thought this was fun. Some vape cotton and Quartz beads at 525
.Thanks, AFAIK that's mostly for early adopters who already have a TRWW cap:@dimmusp "Coil Cap" heating coils for quartz heaters are on sale on the TRWW website
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I RECEIVED MY ORDER OF 18MM COILS. tHEY TESTED AND DID A BURN OFF AT THE FACTORY. DUE TO THIS THEY LOOK DIFFERENT FROM THE MAIN PICTURE. THIS DOES NOT AFFECT PERFORMANCE. PLEASE SEE 4TH PICTURE. NEW COIL IS ON THE LEFT The Coil Cap is almost here!!! I'm waiting on custom clips and a modified...theroguewaxworks.com
. Hitting it through water for fun lately, but it's plenty smooth enough for a dry piece. It's putting out vapor comparable to any of my biggest cloud producers. Crazy stuff!
For sure! Had a good dry run earlier with THIS TRWW setup
Easier for me though to get a full extraction using water and some restriction since it’s pretty open. My thinner heater ramps up fast, and also cools fast. Sometimes needs another twirl with the flame to keep it going, other times when I’m hoping it doesn’t kaboom 
Do you have the 14mm quartz cap? I was wondering how it compare to the mini and which one you prefer.I'm back to the timer with the QC Mini. My head seconds are just not consistent enough for those precision one hitters
I do have the 14 but haven't tried it yet. I'll plan to give it a go tomorrow. The Terpcicle is great, don't think you can go wrong with any of them
A foam insert in a small box my ecig kit came with. It just happened to wedge in there pretty good. A little shaky with the vape on it!
These vapes have a kind of double flow function. The cold air coming in between the outer tube and the inner stem exchange heat with the hot aerosol (vapor) flow inside the inner stem.
@maremaresing I hope you are getting it figured out. As others mentioned, counting is the easiest. If you go slowly you should not combust. Just keep adding a little heat and test. The bowl preheat is really helpful and definitely watch the video
Demo video if you have purchased or are thinking of purchasing a TRWW Quartz Vape
The video will discuss all the models of Quartz Vape and give tips and tricks to getting the most out of your TRWW Quartz vape. Device capacities: Quartz Cap 14mm/Terpedo - .2g, Terpcicle - .4g, Quartz Cap 18mm - .5g, Megacicle/Quartz Cap Mega - .7g Medium to course grinds work best. Loose fill...
@hotmeals glad you are enjoying the QC Mini
I played around with vaping concentrates last night. A banger is easier but thought this was fun. Some vape cotton and Quartz beads at 525