Re: Vandra M7 Priest SP Howitzer conversion build
Posted: Mon Sep 11, 2017 12:43 am
Hi and thank you for your comments.
I am almost done with the gun detailing.
Here are the available Vandra and Shapeways parts for the elevation spring. The Shapeways part has the best potential for upgrades, such as replacing the printed spring and rods by metal ones.
Scavenging the house for what would look like an M2 Howitzer elevation spring, i found that the larger of the hexagonal key holder below is a perfect fit. These can be bought at a Dollar Store.
Here is the new elevation spring module. Reusing the Shapeways parts, it takes about one hour of work to build a new one that looks a lot better. The spring is non functional but the rod moves through it so that the gun can elevate. I replaced the 3D printed rod by a plasticard one so that it slides smoother.
The most complex part is the attachment to the gun mount. I could not find a single pictures that shows how it is. However, the 1/35 kit shows a pin in the area shown below. I had previously put a welded triangle reinforcement of the base at that exact spot so I had to remove it.
The Shapeways gun sight and other apparatus were adapted to my gun mount without any problems. Be aware that these move as the gun elevates. There is an intricate mounting process that need to be brainstormed so that the gun sight is attached to the gun (not the gun mount) and when the gun elevates, the shapeways part follows it. Notice the small bracket that reaches to the top of the elevation axle mounting. I had to extend the bracket a bit.
The traverse wheel and associated mechanism is from Shapeways and attached to the base as shown in references. The gear dents are the ones from the Vandra part, cut and reinstalled on a scratch built bracket in plasticard, it is closer to the original in size and shape.
Here on the right side, the apparatus is glued to the cradle at a precise point in the middle and the whole part moves with the gun. Considering that the Vandra kit left the gun pretty naked, these Shapeways parts are a good deal for the price and really add value.
View from the pulpit.
Here is the gun at maximum elevation. Some other parts were scratch built. Further details will be added at a later stage when I will have nothing left more important to do.
Back view at maximum elevation. You can see here that the wires for the headlamps are quite exposed. These will almost be hidden later. A 50 cal ammo bin shelf will hide most of the wires on the right side. Another bin and driving instruments will mostly hide those on the left.
Regards, Louis
I am almost done with the gun detailing.
Here are the available Vandra and Shapeways parts for the elevation spring. The Shapeways part has the best potential for upgrades, such as replacing the printed spring and rods by metal ones.
Scavenging the house for what would look like an M2 Howitzer elevation spring, i found that the larger of the hexagonal key holder below is a perfect fit. These can be bought at a Dollar Store.
Here is the new elevation spring module. Reusing the Shapeways parts, it takes about one hour of work to build a new one that looks a lot better. The spring is non functional but the rod moves through it so that the gun can elevate. I replaced the 3D printed rod by a plasticard one so that it slides smoother.
The most complex part is the attachment to the gun mount. I could not find a single pictures that shows how it is. However, the 1/35 kit shows a pin in the area shown below. I had previously put a welded triangle reinforcement of the base at that exact spot so I had to remove it.
The Shapeways gun sight and other apparatus were adapted to my gun mount without any problems. Be aware that these move as the gun elevates. There is an intricate mounting process that need to be brainstormed so that the gun sight is attached to the gun (not the gun mount) and when the gun elevates, the shapeways part follows it. Notice the small bracket that reaches to the top of the elevation axle mounting. I had to extend the bracket a bit.
The traverse wheel and associated mechanism is from Shapeways and attached to the base as shown in references. The gear dents are the ones from the Vandra part, cut and reinstalled on a scratch built bracket in plasticard, it is closer to the original in size and shape.
Here on the right side, the apparatus is glued to the cradle at a precise point in the middle and the whole part moves with the gun. Considering that the Vandra kit left the gun pretty naked, these Shapeways parts are a good deal for the price and really add value.
View from the pulpit.
Here is the gun at maximum elevation. Some other parts were scratch built. Further details will be added at a later stage when I will have nothing left more important to do.
Back view at maximum elevation. You can see here that the wires for the headlamps are quite exposed. These will almost be hidden later. A 50 cal ammo bin shelf will hide most of the wires on the right side. Another bin and driving instruments will mostly hide those on the left.
Regards, Louis