{"id":771,"date":"2017-08-24T17:01:09","date_gmt":"2017-08-24T07:01:09","guid":{"rendered":"http:\/\/leederville.net\/rocket\/?p=771"},"modified":"2017-08-28T21:58:20","modified_gmt":"2017-08-28T11:58:20","slug":"fin-to-motor-mount-internal-fillet","status":"publish","type":"post","link":"https:\/\/leederville.net\/rocket\/index.php\/2017\/08\/24\/fin-to-motor-mount-internal-fillet\/","title":{"rendered":"Fin to Motor Mount Internal Fillet"},"content":{"rendered":"

I did the Internal fillets very carefully and just one at a time. This gives me ample opportunity to identify issues and make improvements to my procedures.<\/p>\n

Drying time<\/h3>\n

As a result of the , I had to do 12 fillets. Each fillet requires approx 12 hrs to cure. I could probably have got away with 6 hours, but decided against that because I wanted to ensure I get the best adhesion with the fin and motor-mount. Most of the time I just did one fillet in a day, sometimes I managed to do a second one.<\/p>\n

Preparation<\/h3>\n

I had already roughed up the Motor Mount Fibreglass tube with Grit 80 sand paper and the Fins were already roughed up, scored and cleaned thoroughly.<\/p>\n

Preparation included taping up fins, motor mount and airframe so that no epoxy would find its way on to these areas. I didn’t want a hard time getting the lower centering ring back on and I didn’t want to spoil the hard work done on the fins.<\/p>\n

I had all the tools out ready to do the job:-<\/p>\n