Hello once again, Aardvark! Somehow, I felt we had passed the political phase after your bitterly emetic dismissal in your last response. While I am admittedly lacking in 3D printing skills, I assure you I have at least adequate knowledge of American history, freedoms, rights of free speech and arms bearing as it applies to me as an American citizen, to the point that unsolicited opinions by non-citizens are, well, boorish, if not rude. I have no ax to grind with you and am simply voicing opposition here to your unfounded assumptions that my ideas of freedoms, rights and perspectives are deficient, requiring a lecture. I happily accord you my full respect as a 3D expert and moderator and am very grateful for your help in furthering my meager 3D knowledge.My printer is being about as obstinate as I am but small advances are being made with the patient help of Martin_au. Confidence is growing a bit but I have so far to go. Thank you for your inquiry!