farmer 328 1 Cars Posted April 4, 2014 (edited) I have a brand new 4 speed gear knob in a bag....... Even if you have a good used would do Edited April 4, 2014 by farmer Share this post Link to post Share on other sites
DC2T 51 Posted April 4, 2014 Dont make me open more sealed bags lol. Are the 4 speed ones different ? Share this post Link to post Share on other sites
farmer 328 1 Cars Posted April 4, 2014 Exactly the same just different insert. Share this post Link to post Share on other sites
DC2T 51 Posted April 4, 2014 Ahh right, I dont see why it wouldnt work. Finish wouldnt be as good as OEM but i suppose you could sand it up nicely. Could be next on the list to try Share this post Link to post Share on other sites
welshpug 1,657 Posted April 4, 2014 the knobs aren't solid parts so it should take less time than you imagine if you can get it drawn up. Share this post Link to post Share on other sites
farmer 328 1 Cars Posted April 4, 2014 Well anything you need I have is available anyway. One part at a time see how it goes. Share this post Link to post Share on other sites
DC2T 51 Posted April 4, 2014 My worry is more the drawing it than the making it lol. I think i know how id do it but it may take some time, i can CMM it at work but it would be a long job. Basically id have to measure the shape from the bottom to the top in say 1mm increments then draw those shapes stacked on top of each other then i can pull the bottom shape through the others to give the overall form. Does that make sense? if anyone could offer a better/easier way to do it thatd be awesome Share this post Link to post Share on other sites
farmer 328 1 Cars Posted April 4, 2014 AM a farmer don't get technical on me, sounds doable anyway Share this post Link to post Share on other sites
DC2T 51 Posted April 4, 2014 heh, its totally doable. I may just need to look into how to draw it thats all. Will be fun Share this post Link to post Share on other sites
farmer 328 1 Cars Posted April 4, 2014 When the time comes you can play with my "knob" for as long as it takes to get a good example Share this post Link to post Share on other sites
DC2T 51 Posted April 4, 2014 pretty impressed to be honest not with my camera though Share this post Link to post Share on other sites
farmer 328 1 Cars Posted April 4, 2014 Two of those per car mate so you know. Share this post Link to post Share on other sites
cybernck 402 1 Cars Posted April 4, 2014 If you need to figure out how to do the internals of the gear knob, I can send you mine! 2 Share this post Link to post Share on other sites
DC2T 51 Posted April 5, 2014 Haha howd you manage that? Share this post Link to post Share on other sites
welshpug 1,657 Posted April 5, 2014 Old age and hot summers! Possible canine assistance. Share this post Link to post Share on other sites
Ballyafb 6 Posted April 5, 2014 Are you using a 3D scanner to reverse engineer these parts, or just a good ruler/verniers and a bit by-eye? Share this post Link to post Share on other sites
DC2T 51 Posted April 5, 2014 (edited) I use what i need to do it really, if its as simple as measuring across the width ill use a micrometer, i was always taught calipers were "guessing sticks" and to always use my mics, theyve come on quite a bit now so theyre not as bad as old clock dial ones or just with slide markings. If in the case of this block i needed to measure the profile form of the triple angled grooves and lead in tapers i used a casting compound to take the form and measured that at x25 on a shadowgraph. To double check it ill be getting a trace done of the same profile on a mitutoyo tracing machine, if i really wanted to go overboard i have access to state of the art cmm equipment too but as i say, ill use the simplest thing i can to check it with, but it will be measured properly. For the likes of a gearknob it will be a combination of measurement and eye work, id print one and compare the original and adjust if necessary im looking at getting a 3d scanner though so we'll see where that leads Edited April 5, 2014 by DC2T Share this post Link to post Share on other sites
Edp 67 3 Cars Posted April 5, 2014 If you need to figure out how to do the internals of the gear knob, I can send you mine! Hahaha, I hope you kept the badge Share this post Link to post Share on other sites
cybernck 402 1 Cars Posted April 5, 2014 I got it like that. Share this post Link to post Share on other sites
dch1950 37 1 Cars Posted April 6, 2014 3D scanner - now you've got my attention. Share this post Link to post Share on other sites
DC2T 51 Posted April 6, 2014 Theres a way of using an xbox kinect sensor as a scanner, thats what im gonna try as a proper scanner is alot more than my printer lol Share this post Link to post Share on other sites
DC2T 51 Posted April 6, 2014 (edited) And a finished article, i may change the 2 little location pins as i had to hand file them to fit properly but other than that it looks ok to me i need to sort this camera too its annoying the piss out of me now My QA mate is in work today so ill get him to do that trace of the profile, aswell as anything else that needs measuring. I wasnt very well yesterday so got a bit behind on the other piece but ill make a start on it today Edited April 6, 2014 by DC2T Share this post Link to post Share on other sites
farmer 328 1 Cars Posted April 6, 2014 Looks good. They were about £3.50 when sold from Pug, gives you an idea what to charge and to cover your time/costs. Share this post Link to post Share on other sites
DC2T 51 Posted April 6, 2014 Ah thats pretty cheap, is that per piece or for the pair?, its a hard one to work out for price really. Same for the badges. Cost wise the material and power cost are small. Maybe a pound if that per piece, but time wise its around 2-4 hours i think. I dont wana rip peoples eyes out either, ill have a think and ill see what i can do time wise and try and come up with a nice reasonable price Ive also had the original traced which is a little bit out to the cast which is expected but is a much better representation on the actual form which il scan and post when i get home, i also did the printed piece which i was very impressed with with its repeatability and accuracy. Granted it was slightly out to the actual sizes but thats down to the model and not the machine, a tweak to the model and were all good and can do a prototype for testing purposes. Share this post Link to post Share on other sites
farmer 328 1 Cars Posted April 6, 2014 Exact price was £2.80 each, 2 needed per car. Share this post Link to post Share on other sites
