Not a good idea at all sorry guys because at first look it looks great.
1 The manufacturer of these jacks advises they are only there to raise the object not to hold for prolonged periods in that case you need stands for the load.
2 At 500 mm lift the allowed load is 25% of the advertised load.
3 These jacks are designed for a load pushing down vertically at the lifting arm.
What is happening there is a bending moment caused by the load being applied on the tyre tracks say on average 400mm from the centre of the upright and going on to the crossmembers at some unknown point.
There is nothing keeping the car from falling off the platform if the hand brake is not put on or if the brakes are being worked on.
What is the safe point load if you jack a wheel on the ramps and someone will if they build one of these!!!!!
Where is the warnings about max loads at different heights displayed especially for the person who built it and forgets these numbers that most people will.
Sorry to be down on the idea but I looked at this and was just about to do the same as it was such a great idea.
If anyone disagrees by all means correct me factually rather than say it is OK just for the home garage.
+1 il stick with Eddie, i certainly wouldnt be taking the car anymore than a couple of inches of the ground thats for sure, i can see a bent Aero coming here.
There is nothing keeping the car from falling off the platform if the hand brake is not put on or if the brakes are being worked on.
Not easy to tell from the photos, but it looks to me as though the car is resting on the beams on it's jacking points. The wooden ramps are only in place to get the car above the beams.
To raise the car evenly would take four people though...
As for the Hi-Lift (Sheepherders Jacks) I only have one (a 5ft, which is too long to carry in the 90, purchased when I owned a 109" SIII). I use it at home occasionally for a quick lift of one corner of the 90 (or more often for pulling stubborn plants out of the garden! ).
Graham (G4FUJ)
Sold L44FOR 4/4 Giallo Fly '09 Gen2 MINI Cooper ragtop '90 LR 90 SW
OK I did not notice that it is lifting the car on its sills / lifting point so the comment about it rolling off the tracks is not an issue.
Any car lift usually works by lifting the car then lowering on to locking clocks /racks. To lower you have to lift off the locks, get then out the way and lower. This is not happening here.
Also if you bolt the crossmembers to the lifting arms there is 100% a bending moment issue that.
1 The small high level fixings will not survive if one jack fails.
2 The bottom jacking arrangement is not designed for that load.