Yes, thanks, 18" is over 45cm, not 43cm
I decided will source it from China as the Siglent or Apache case seem not source-able from the US. and then there is freight.
How much foam should there be between the unit and case ?.
Any experience. it seems the HC-1 gives about 5cm top and bottom.
This is the best one coming close is GDT5019: (google for GD5019 case)
https://gdtoolbox.world.taobao.com/?spm=a312a.7700824.0.0.5a2e5033y3tKnTwhile Model 4636T is a bit deeper for almost the same WxL.
Brand/Model Outer Inner Price
Siglent HC-1 ? / 457x327x194 US$ 165
Apache 4800 500x400x190 / 460x320x170 (45+125) US$30 (Alibaba)
For reference other that are available from Taobao:
Brand/Model Outer Inner Price
Model GD(T)5019 524x428x206 / 468x355x193 (44+149) US$ 40
Model J106 491x434x211 / 460x370x195 (50+145) US$ 42
Model AX55139 570x410x210 / 495x350x190 (45+145) US$ 42
Model X44: 475x360x217 / 440x300x202 (41+161) US$ 22
Model 4636T: 521x420x265 / 460x360x250 (50+200) US$66
Both Siglent and Apache 4800 claim 18" x 12 7/8" x 7 5/8" inner dimension which is around 200mm
but does not match with the same model on HarborFreight.com or Alibaba.
Note that some cases have only 2 locks.
After checking with the manufacturer of GD5019, they recommend use EVA25 or EVA35 foam instead of the supplied foam which is too soft. The top shell is 44mm, so perhaps use a solid 40mm EVA foam in the top cover and bottom + a 40+60mm cut layer for the scope itself and then a thin layer with holes for only the knobs. For hardness, it must be soft enough to not break the knobs on shock and stiff enough to prevent the knobs to slam into the top cover.....
Perhaps this helps those not located in the US to find an affordable alternative
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