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Re: Martin's Jagdpanther

Posted: Fri Jul 05, 2019 4:14 pm
by Vince Cutajar
It will be interesting to see how your recoil system develops. I can see you are using a linear bearing and toothed (timing) gears. Looks to be interesting. For my Tiger 1 I will be using most of the Armortek hardware but controlled by an Arduino and a stepper motor.

Vince

Re: Martin's Jagdpanther

Posted: Fri Jul 05, 2019 6:29 pm
by Stephen White
Martin, great to see your engineering skills. There is some film footage of the Weald Foundation Jagdpanther in action in my TankFest video on the TankFest 2019 thread. (See at 5.15 mins into the video).

https://www.youtube.com/watch?v=N0yq6vpZu98

With a linear bearing, you may well have to balance the gun barrel longitudinally. I found with my Cent linear bearing that any slight axial misalignment causes the barrel to jam in the bearing. I shimmed it to make sure there was no free play in the bearing and with the gun in balance, it now recoils very smoothly and freely. I'll be interested to see your experience.

Re: Martin's Jagdpanther

Posted: Thu Jul 11, 2019 5:42 pm
by Martin Hofmann
Hi Vince,
hi Stephen,
her you can see the next progress of the recoil system with the new motors for barrel movement.
Maybe i forgot to tell you: there are 2 linear ball bearings in the parts with an inner diameter of 20mm and a distance to each of approx. 120mm. So i am sure there is no problem of jamming, because the rod has a tolerance of 20 -0.025 mm.

Re: Martin's Jagdpanther

Posted: Fri Jul 12, 2019 8:12 pm
by Christoffer Ahlfors
I realize now that in order to fully appreciate this, I would need to know what it looked like before your modifications. :?
Either way, just watching your mechanics is pure joy! :D

Re: Martin's Jagdpanther

Posted: Tue Jul 16, 2019 5:08 pm
by Martin Hofmann
Hi Chris,
thanks for the flowers :D :D .
Here starts the chaos of the electric with all switches and the new 60W Benedini amplifier. It has a great sound after 2 hard weeks of working with all the cables, relais, power supply, aux module and switches ...............

Re: Martin's Jagdpanther

Posted: Tue Jul 16, 2019 8:27 pm
by Vince Cutajar
A very neat layout. Can't wait to see it in action.

Vince

Re: Martin's Jagdpanther

Posted: Wed Aug 07, 2019 4:38 pm
by Martin Hofmann
Hi Vince,
sorry for so long not answer, but i was very very busy first for Hausen and afterwards for job.
Here are some more progress - all without weathering

Re: Martin's Jagdpanther

Posted: Tue Aug 20, 2019 5:04 pm
by Martin Hofmann
Here making some new recovery ropes and soldered with the tubes. After this i camfered the ends.
In the mean time the JP got some weathering. Now the red color is getting darker and is nearer to the origin in Bovingten.

Re: Martin's Jagdpanther

Posted: Wed Sep 25, 2019 4:35 pm
by Martin Hofmann
Now all tools are mounted. Also the recovery ropes are on there place.
Only a little bit rust onto the exhausts are missing. That will follow soon.

Re: Martin's Jagdpanther

Posted: Wed Sep 25, 2019 5:13 pm
by Phil Woollard
Looking good!

Re: Martin's Jagdpanther

Posted: Wed Sep 25, 2019 8:42 pm
by Vince Cutajar
Really well done.

Vince

Re: Martin's Jagdpanther

Posted: Thu Sep 26, 2019 8:10 pm
by Christoffer Ahlfors
Perhaps I have said this before, but you are not only a first class engineer, you do the artistic part fantastically, too! :D

Re: Martin's Jagdpanther

Posted: Thu Sep 26, 2019 10:00 pm
by simon_manning
excellent martin, i like it, lovely job, regards simon.

Re: Martin's Jagdpanther

Posted: Fri Sep 27, 2019 3:50 pm
by Martin Hofmann
Hello guys,
thank you very, very much for the kind words!!! The compliments are always welcome. :D :D :D