I was putting together my first Celtic pen the other day and in my ignorance I tried to press it together with the transmission in the pen and by pressing both couplers without the cap. If any of you have tried this you would have discovered as I did that the transmission extends past the cap coupler so what I ended up with was a smashed transmission. When the pen did not work right I looked up the assembly instructions and discovered my mistake but now I need a trasmission. I looked for anywhere that sells just transmissions for a Celtic pen and could not find any. Does anyone here know where I can get one or do I need to buy a new kit and use it for parts?